Oil leak
Guest
Posts: n/a
Re: Oil leak
Hi Mike. Thanks for the in put. The oil is leaking down the back of the
oil pan as well as down the plate thats behind it, or the plate at the
front of the bell housing. Anyway I have bigger fish to fry seeing as
though I discovered last night that my coolant is not circulating. It
is in the shop as we speak having a new water pump put on. Thanks for
the advice I really do appreciate it. Have a good day!
Greg
95 YJ
Mike Romain wrote:
> Not really. A rear main will drip off the oil pan though, not off the
> bell housing usually.
>
> You can take you Jeep out and play in the mud puddles splashing as much
> as you can, then drive it until the mud dries, stop and look carefully
> at the engine. Any leaks will show up plainly in the fresh mud.
>
> If you take a clean rag and wipe the engine head at the back just below
> the valve cover or right along the valve cover edge and come away with
> an oil stain, you have found a leak. These only leak when the engine is
> running. Mine is bone dry back there.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
>
> jerryg wrote:
> >
> > How do I know it's not the rear main seal? Is there any thing I can do
> > to rule it out?
> >
> > Greg
> > Carl wrote:
> > > Front of the bellhousing is not a rear main seal. Check that valve cover
> > > again, very carefully..
> > >
> > > Carl
> > >
> > >
> > > "jerryg" <Gregginn7@msn.com> wrote in message
> > > news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
> > > > Thanks everyone, I really appreciate all the input! The oil is dripping
> > > > down the front of the bell housing. I don't know much about engines but
> > > > it still appears to the main seal. I am going to take the advice of all
> > > > here who posted just to rule eveything else out. I really do appreciate
> > > > everything. I love this vehicle. Thanks again to all!! Have a good
> > > > Holiday!
> > > >
> > > > Greg
> > > > Mike Romain wrote:
> > > >> The oil pan itself can be leaking and running back. You might want to
> > > >> gently put a wrench on the bolts holding it on.
> > > >>
> > > >> The drain bolt's washer is 'supposed' to get changed regularly and it
> > > >> can leak. Usually they don't get changed. I have a box of washers and
> > > >> change mine every couple oil changes.
> > > >>
> > > >> The dipstick base can be leaking slightly and running back.
> > > >>
> > > >> The oil filter base can be leaking slightly and running back.
> > > >>
> > > >> Or it could be the rear main seal....
> > > >>
> > > >> At least the rear main can be done in the vehicle...
> > > >>
> > > >> Mike
> > > >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > >> 88 Cherokee 235 BFG AT's
> > > >> Canadian Off Road Trips Photos: Non members can still view!
> > > >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> > > >> (More Off Road album links at bottom of the view page)
> > > >>
> > > >> jerryg wrote:
> > > >> >
> > > >> > Good evening to all,
> > > >> >
> > > >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
> > > >> > engine. From what I've read, the usual culprit is a bad valve cover
> > > >> > gasket. Upon a visual inspection, and a quick feel behind the valve
> > > >> > cover and on top of the bell housing, I can detect no oil leaking. I am
> > > >> > guessing a bad main seal. Is this a death sentence for the engine or a
> > > >> > repair that can add many more miles of enjoyment? The leak is not that
> > > >> > bad now, but how soon should it be addressed? I am not much of a
> > > >> > mechanic, but am not affraid to tackle a repair job. Difficulty level?
> > > >> > The engine only has 72K miles on it. Is this a common occurance? Any
> > > >> > help would greatly be appreciated! Thanks in advance.
> > > >> >
> > > >> > Greg Ginn
> > > >
oil pan as well as down the plate thats behind it, or the plate at the
front of the bell housing. Anyway I have bigger fish to fry seeing as
though I discovered last night that my coolant is not circulating. It
is in the shop as we speak having a new water pump put on. Thanks for
the advice I really do appreciate it. Have a good day!
Greg
95 YJ
Mike Romain wrote:
> Not really. A rear main will drip off the oil pan though, not off the
> bell housing usually.
>
> You can take you Jeep out and play in the mud puddles splashing as much
> as you can, then drive it until the mud dries, stop and look carefully
> at the engine. Any leaks will show up plainly in the fresh mud.
>
> If you take a clean rag and wipe the engine head at the back just below
> the valve cover or right along the valve cover edge and come away with
> an oil stain, you have found a leak. These only leak when the engine is
> running. Mine is bone dry back there.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
>
> jerryg wrote:
> >
> > How do I know it's not the rear main seal? Is there any thing I can do
> > to rule it out?
> >
> > Greg
> > Carl wrote:
> > > Front of the bellhousing is not a rear main seal. Check that valve cover
> > > again, very carefully..
> > >
> > > Carl
> > >
> > >
> > > "jerryg" <Gregginn7@msn.com> wrote in message
> > > news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
> > > > Thanks everyone, I really appreciate all the input! The oil is dripping
> > > > down the front of the bell housing. I don't know much about engines but
> > > > it still appears to the main seal. I am going to take the advice of all
> > > > here who posted just to rule eveything else out. I really do appreciate
> > > > everything. I love this vehicle. Thanks again to all!! Have a good
> > > > Holiday!
> > > >
> > > > Greg
> > > > Mike Romain wrote:
> > > >> The oil pan itself can be leaking and running back. You might want to
> > > >> gently put a wrench on the bolts holding it on.
> > > >>
> > > >> The drain bolt's washer is 'supposed' to get changed regularly and it
> > > >> can leak. Usually they don't get changed. I have a box of washers and
> > > >> change mine every couple oil changes.
> > > >>
> > > >> The dipstick base can be leaking slightly and running back.
> > > >>
> > > >> The oil filter base can be leaking slightly and running back.
> > > >>
> > > >> Or it could be the rear main seal....
> > > >>
> > > >> At least the rear main can be done in the vehicle...
> > > >>
> > > >> Mike
> > > >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > > >> 88 Cherokee 235 BFG AT's
> > > >> Canadian Off Road Trips Photos: Non members can still view!
> > > >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> > > >> (More Off Road album links at bottom of the view page)
> > > >>
> > > >> jerryg wrote:
> > > >> >
> > > >> > Good evening to all,
> > > >> >
> > > >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
> > > >> > engine. From what I've read, the usual culprit is a bad valve cover
> > > >> > gasket. Upon a visual inspection, and a quick feel behind the valve
> > > >> > cover and on top of the bell housing, I can detect no oil leaking. I am
> > > >> > guessing a bad main seal. Is this a death sentence for the engine or a
> > > >> > repair that can add many more miles of enjoyment? The leak is not that
> > > >> > bad now, but how soon should it be addressed? I am not much of a
> > > >> > mechanic, but am not affraid to tackle a repair job. Difficulty level?
> > > >> > The engine only has 72K miles on it. Is this a common occurance? Any
> > > >> > help would greatly be appreciated! Thanks in advance.
> > > >> >
> > > >> > Greg Ginn
> > > >
Guest
Posts: n/a
Re: Oil leak
Greg,
Old jeeps leaked oil(s) a lot.... the newer ones leak less.
Other, more experienced Jeepers have already mentioned the causes in
separate posts but I'll condense them:
1. Back of the valve cover
Overwhelming most often cause. Jeep changed the style and
composition of the cover and gasket several times and only recently they
seemed to figure out how to seal the engine. The fix includes getting the
cover gasket flange and head *spotlessly* clean
2. Oil filter mount
Not the filter but the base it screws into that is mounted to the
engine block. There are several "O" rings in there. Jeep went through a
spell where they used a poor choice in materials that would fail and leak.
The repair is to replace the O rings which are about a dollar but the labor
is a pain.
3. Oil drain plug gasket
They eventually fail. You can get new ones at any auto-parts store.
I've heard some cheap bast...err...jeepers have made them by cutting circles
from coffee can lids ..... but I wouldn't know about that...<g>
4. Oil pan
Jeep went through a spell where they got a really good deal on pans
made out of steel the consistency of tinfoil that would rust through. The
first pinhole leaks would slow rusting in the rest of the pan by coating the
bottom of the engine's pan in a layer of oil
5. Crankcase ventilation openings
Sometimes there was a kit sometimes you needed to replace the whole
valve cover... depends on the year and which opening. Pressure buildup
would bulge or blow out seals and sometimes puke oil into the airbox.
6. Oil cap
Sometimes they need replacement.
7. Front pinion seals
Leaks on the driver's side
8. Steering gear and pump
Driver's side
9. Transmission cooler and lines (with autoboxes)
Un-maintained transmissions have brown fluid instead of red.
10. Emissions hoses
They get brittle crack and split. They carry engine fumes to be
re-burned and can leak through the cracks
11.. Rear main
Dead center at the back of the oilpan or bellhousing.
They aren't in any particular order other than the valve cover which is the
number one cause of 'rear main' leaks.
Diagnosis..... you have to either degrease the engine and recheck daily or
spend the afternoon driving through the mud like Mike recommends.... dried
mud reveals new leaks as wet spots.
"jerryg" <Gregginn7@msn.com> wrote in message
news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> How do I know it's not the rear main seal? Is there any thing I can do
> to rule it out?
>
> Greg
> Carl wrote:
>> Front of the bellhousing is not a rear main seal. Check that valve cover
>> again, very carefully..
>>
>> Carl
>>
>>
>> "jerryg" <Gregginn7@msn.com> wrote in message
>> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
>> > Thanks everyone, I really appreciate all the input! The oil is dripping
>> > down the front of the bell housing. I don't know much about engines but
>> > it still appears to the main seal. I am going to take the advice of all
>> > here who posted just to rule eveything else out. I really do appreciate
>> > everything. I love this vehicle. Thanks again to all!! Have a good
>> > Holiday!
>> >
>> > Greg
>> > Mike Romain wrote:
>> >> The oil pan itself can be leaking and running back. You might want to
>> >> gently put a wrench on the bolts holding it on.
>> >>
>> >> The drain bolt's washer is 'supposed' to get changed regularly and it
>> >> can leak. Usually they don't get changed. I have a box of washers
>> >> and
>> >> change mine every couple oil changes.
>> >>
>> >> The dipstick base can be leaking slightly and running back.
>> >>
>> >> The oil filter base can be leaking slightly and running back.
>> >>
>> >> Or it could be the rear main seal....
>> >>
>> >> At least the rear main can be done in the vehicle...
>> >>
>> >> Mike
>> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> >> 88 Cherokee 235 BFG AT's
>> >> Canadian Off Road Trips Photos: Non members can still view!
>> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> >> (More Off Road album links at bottom of the view page)
>> >>
>> >> jerryg wrote:
>> >> >
>> >> > Good evening to all,
>> >> >
>> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
>> >> > engine. From what I've read, the usual culprit is a bad valve cover
>> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
>> >> > cover and on top of the bell housing, I can detect no oil leaking. I
>> >> > am
>> >> > guessing a bad main seal. Is this a death sentence for the engine or
>> >> > a
>> >> > repair that can add many more miles of enjoyment? The leak is not
>> >> > that
>> >> > bad now, but how soon should it be addressed? I am not much of a
>> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
>> >> > level?
>> >> > The engine only has 72K miles on it. Is this a common occurance? Any
>> >> > help would greatly be appreciated! Thanks in advance.
>> >> >
>> >> > Greg Ginn
>> >
>
Old jeeps leaked oil(s) a lot.... the newer ones leak less.
Other, more experienced Jeepers have already mentioned the causes in
separate posts but I'll condense them:
1. Back of the valve cover
Overwhelming most often cause. Jeep changed the style and
composition of the cover and gasket several times and only recently they
seemed to figure out how to seal the engine. The fix includes getting the
cover gasket flange and head *spotlessly* clean
2. Oil filter mount
Not the filter but the base it screws into that is mounted to the
engine block. There are several "O" rings in there. Jeep went through a
spell where they used a poor choice in materials that would fail and leak.
The repair is to replace the O rings which are about a dollar but the labor
is a pain.
3. Oil drain plug gasket
They eventually fail. You can get new ones at any auto-parts store.
I've heard some cheap bast...err...jeepers have made them by cutting circles
from coffee can lids ..... but I wouldn't know about that...<g>
4. Oil pan
Jeep went through a spell where they got a really good deal on pans
made out of steel the consistency of tinfoil that would rust through. The
first pinhole leaks would slow rusting in the rest of the pan by coating the
bottom of the engine's pan in a layer of oil
5. Crankcase ventilation openings
Sometimes there was a kit sometimes you needed to replace the whole
valve cover... depends on the year and which opening. Pressure buildup
would bulge or blow out seals and sometimes puke oil into the airbox.
6. Oil cap
Sometimes they need replacement.
7. Front pinion seals
Leaks on the driver's side
8. Steering gear and pump
Driver's side
9. Transmission cooler and lines (with autoboxes)
Un-maintained transmissions have brown fluid instead of red.
10. Emissions hoses
They get brittle crack and split. They carry engine fumes to be
re-burned and can leak through the cracks
11.. Rear main
Dead center at the back of the oilpan or bellhousing.
They aren't in any particular order other than the valve cover which is the
number one cause of 'rear main' leaks.
Diagnosis..... you have to either degrease the engine and recheck daily or
spend the afternoon driving through the mud like Mike recommends.... dried
mud reveals new leaks as wet spots.
"jerryg" <Gregginn7@msn.com> wrote in message
news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> How do I know it's not the rear main seal? Is there any thing I can do
> to rule it out?
>
> Greg
> Carl wrote:
>> Front of the bellhousing is not a rear main seal. Check that valve cover
>> again, very carefully..
>>
>> Carl
>>
>>
>> "jerryg" <Gregginn7@msn.com> wrote in message
>> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
>> > Thanks everyone, I really appreciate all the input! The oil is dripping
>> > down the front of the bell housing. I don't know much about engines but
>> > it still appears to the main seal. I am going to take the advice of all
>> > here who posted just to rule eveything else out. I really do appreciate
>> > everything. I love this vehicle. Thanks again to all!! Have a good
>> > Holiday!
>> >
>> > Greg
>> > Mike Romain wrote:
>> >> The oil pan itself can be leaking and running back. You might want to
>> >> gently put a wrench on the bolts holding it on.
>> >>
>> >> The drain bolt's washer is 'supposed' to get changed regularly and it
>> >> can leak. Usually they don't get changed. I have a box of washers
>> >> and
>> >> change mine every couple oil changes.
>> >>
>> >> The dipstick base can be leaking slightly and running back.
>> >>
>> >> The oil filter base can be leaking slightly and running back.
>> >>
>> >> Or it could be the rear main seal....
>> >>
>> >> At least the rear main can be done in the vehicle...
>> >>
>> >> Mike
>> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> >> 88 Cherokee 235 BFG AT's
>> >> Canadian Off Road Trips Photos: Non members can still view!
>> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> >> (More Off Road album links at bottom of the view page)
>> >>
>> >> jerryg wrote:
>> >> >
>> >> > Good evening to all,
>> >> >
>> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
>> >> > engine. From what I've read, the usual culprit is a bad valve cover
>> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
>> >> > cover and on top of the bell housing, I can detect no oil leaking. I
>> >> > am
>> >> > guessing a bad main seal. Is this a death sentence for the engine or
>> >> > a
>> >> > repair that can add many more miles of enjoyment? The leak is not
>> >> > that
>> >> > bad now, but how soon should it be addressed? I am not much of a
>> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
>> >> > level?
>> >> > The engine only has 72K miles on it. Is this a common occurance? Any
>> >> > help would greatly be appreciated! Thanks in advance.
>> >> >
>> >> > Greg Ginn
>> >
>
Guest
Posts: n/a
Re: Oil leak
Greg,
Old jeeps leaked oil(s) a lot.... the newer ones leak less.
Other, more experienced Jeepers have already mentioned the causes in
separate posts but I'll condense them:
1. Back of the valve cover
Overwhelming most often cause. Jeep changed the style and
composition of the cover and gasket several times and only recently they
seemed to figure out how to seal the engine. The fix includes getting the
cover gasket flange and head *spotlessly* clean
2. Oil filter mount
Not the filter but the base it screws into that is mounted to the
engine block. There are several "O" rings in there. Jeep went through a
spell where they used a poor choice in materials that would fail and leak.
The repair is to replace the O rings which are about a dollar but the labor
is a pain.
3. Oil drain plug gasket
They eventually fail. You can get new ones at any auto-parts store.
I've heard some cheap bast...err...jeepers have made them by cutting circles
from coffee can lids ..... but I wouldn't know about that...<g>
4. Oil pan
Jeep went through a spell where they got a really good deal on pans
made out of steel the consistency of tinfoil that would rust through. The
first pinhole leaks would slow rusting in the rest of the pan by coating the
bottom of the engine's pan in a layer of oil
5. Crankcase ventilation openings
Sometimes there was a kit sometimes you needed to replace the whole
valve cover... depends on the year and which opening. Pressure buildup
would bulge or blow out seals and sometimes puke oil into the airbox.
6. Oil cap
Sometimes they need replacement.
7. Front pinion seals
Leaks on the driver's side
8. Steering gear and pump
Driver's side
9. Transmission cooler and lines (with autoboxes)
Un-maintained transmissions have brown fluid instead of red.
10. Emissions hoses
They get brittle crack and split. They carry engine fumes to be
re-burned and can leak through the cracks
11.. Rear main
Dead center at the back of the oilpan or bellhousing.
They aren't in any particular order other than the valve cover which is the
number one cause of 'rear main' leaks.
Diagnosis..... you have to either degrease the engine and recheck daily or
spend the afternoon driving through the mud like Mike recommends.... dried
mud reveals new leaks as wet spots.
"jerryg" <Gregginn7@msn.com> wrote in message
news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> How do I know it's not the rear main seal? Is there any thing I can do
> to rule it out?
>
> Greg
> Carl wrote:
>> Front of the bellhousing is not a rear main seal. Check that valve cover
>> again, very carefully..
>>
>> Carl
>>
>>
>> "jerryg" <Gregginn7@msn.com> wrote in message
>> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
>> > Thanks everyone, I really appreciate all the input! The oil is dripping
>> > down the front of the bell housing. I don't know much about engines but
>> > it still appears to the main seal. I am going to take the advice of all
>> > here who posted just to rule eveything else out. I really do appreciate
>> > everything. I love this vehicle. Thanks again to all!! Have a good
>> > Holiday!
>> >
>> > Greg
>> > Mike Romain wrote:
>> >> The oil pan itself can be leaking and running back. You might want to
>> >> gently put a wrench on the bolts holding it on.
>> >>
>> >> The drain bolt's washer is 'supposed' to get changed regularly and it
>> >> can leak. Usually they don't get changed. I have a box of washers
>> >> and
>> >> change mine every couple oil changes.
>> >>
>> >> The dipstick base can be leaking slightly and running back.
>> >>
>> >> The oil filter base can be leaking slightly and running back.
>> >>
>> >> Or it could be the rear main seal....
>> >>
>> >> At least the rear main can be done in the vehicle...
>> >>
>> >> Mike
>> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> >> 88 Cherokee 235 BFG AT's
>> >> Canadian Off Road Trips Photos: Non members can still view!
>> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> >> (More Off Road album links at bottom of the view page)
>> >>
>> >> jerryg wrote:
>> >> >
>> >> > Good evening to all,
>> >> >
>> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
>> >> > engine. From what I've read, the usual culprit is a bad valve cover
>> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
>> >> > cover and on top of the bell housing, I can detect no oil leaking. I
>> >> > am
>> >> > guessing a bad main seal. Is this a death sentence for the engine or
>> >> > a
>> >> > repair that can add many more miles of enjoyment? The leak is not
>> >> > that
>> >> > bad now, but how soon should it be addressed? I am not much of a
>> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
>> >> > level?
>> >> > The engine only has 72K miles on it. Is this a common occurance? Any
>> >> > help would greatly be appreciated! Thanks in advance.
>> >> >
>> >> > Greg Ginn
>> >
>
Old jeeps leaked oil(s) a lot.... the newer ones leak less.
Other, more experienced Jeepers have already mentioned the causes in
separate posts but I'll condense them:
1. Back of the valve cover
Overwhelming most often cause. Jeep changed the style and
composition of the cover and gasket several times and only recently they
seemed to figure out how to seal the engine. The fix includes getting the
cover gasket flange and head *spotlessly* clean
2. Oil filter mount
Not the filter but the base it screws into that is mounted to the
engine block. There are several "O" rings in there. Jeep went through a
spell where they used a poor choice in materials that would fail and leak.
The repair is to replace the O rings which are about a dollar but the labor
is a pain.
3. Oil drain plug gasket
They eventually fail. You can get new ones at any auto-parts store.
I've heard some cheap bast...err...jeepers have made them by cutting circles
from coffee can lids ..... but I wouldn't know about that...<g>
4. Oil pan
Jeep went through a spell where they got a really good deal on pans
made out of steel the consistency of tinfoil that would rust through. The
first pinhole leaks would slow rusting in the rest of the pan by coating the
bottom of the engine's pan in a layer of oil
5. Crankcase ventilation openings
Sometimes there was a kit sometimes you needed to replace the whole
valve cover... depends on the year and which opening. Pressure buildup
would bulge or blow out seals and sometimes puke oil into the airbox.
6. Oil cap
Sometimes they need replacement.
7. Front pinion seals
Leaks on the driver's side
8. Steering gear and pump
Driver's side
9. Transmission cooler and lines (with autoboxes)
Un-maintained transmissions have brown fluid instead of red.
10. Emissions hoses
They get brittle crack and split. They carry engine fumes to be
re-burned and can leak through the cracks
11.. Rear main
Dead center at the back of the oilpan or bellhousing.
They aren't in any particular order other than the valve cover which is the
number one cause of 'rear main' leaks.
Diagnosis..... you have to either degrease the engine and recheck daily or
spend the afternoon driving through the mud like Mike recommends.... dried
mud reveals new leaks as wet spots.
"jerryg" <Gregginn7@msn.com> wrote in message
news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> How do I know it's not the rear main seal? Is there any thing I can do
> to rule it out?
>
> Greg
> Carl wrote:
>> Front of the bellhousing is not a rear main seal. Check that valve cover
>> again, very carefully..
>>
>> Carl
>>
>>
>> "jerryg" <Gregginn7@msn.com> wrote in message
>> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
>> > Thanks everyone, I really appreciate all the input! The oil is dripping
>> > down the front of the bell housing. I don't know much about engines but
>> > it still appears to the main seal. I am going to take the advice of all
>> > here who posted just to rule eveything else out. I really do appreciate
>> > everything. I love this vehicle. Thanks again to all!! Have a good
>> > Holiday!
>> >
>> > Greg
>> > Mike Romain wrote:
>> >> The oil pan itself can be leaking and running back. You might want to
>> >> gently put a wrench on the bolts holding it on.
>> >>
>> >> The drain bolt's washer is 'supposed' to get changed regularly and it
>> >> can leak. Usually they don't get changed. I have a box of washers
>> >> and
>> >> change mine every couple oil changes.
>> >>
>> >> The dipstick base can be leaking slightly and running back.
>> >>
>> >> The oil filter base can be leaking slightly and running back.
>> >>
>> >> Or it could be the rear main seal....
>> >>
>> >> At least the rear main can be done in the vehicle...
>> >>
>> >> Mike
>> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> >> 88 Cherokee 235 BFG AT's
>> >> Canadian Off Road Trips Photos: Non members can still view!
>> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> >> (More Off Road album links at bottom of the view page)
>> >>
>> >> jerryg wrote:
>> >> >
>> >> > Good evening to all,
>> >> >
>> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
>> >> > engine. From what I've read, the usual culprit is a bad valve cover
>> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
>> >> > cover and on top of the bell housing, I can detect no oil leaking. I
>> >> > am
>> >> > guessing a bad main seal. Is this a death sentence for the engine or
>> >> > a
>> >> > repair that can add many more miles of enjoyment? The leak is not
>> >> > that
>> >> > bad now, but how soon should it be addressed? I am not much of a
>> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
>> >> > level?
>> >> > The engine only has 72K miles on it. Is this a common occurance? Any
>> >> > help would greatly be appreciated! Thanks in advance.
>> >> >
>> >> > Greg Ginn
>> >
>
Guest
Posts: n/a
Re: Oil leak
Greg,
Old jeeps leaked oil(s) a lot.... the newer ones leak less.
Other, more experienced Jeepers have already mentioned the causes in
separate posts but I'll condense them:
1. Back of the valve cover
Overwhelming most often cause. Jeep changed the style and
composition of the cover and gasket several times and only recently they
seemed to figure out how to seal the engine. The fix includes getting the
cover gasket flange and head *spotlessly* clean
2. Oil filter mount
Not the filter but the base it screws into that is mounted to the
engine block. There are several "O" rings in there. Jeep went through a
spell where they used a poor choice in materials that would fail and leak.
The repair is to replace the O rings which are about a dollar but the labor
is a pain.
3. Oil drain plug gasket
They eventually fail. You can get new ones at any auto-parts store.
I've heard some cheap bast...err...jeepers have made them by cutting circles
from coffee can lids ..... but I wouldn't know about that...<g>
4. Oil pan
Jeep went through a spell where they got a really good deal on pans
made out of steel the consistency of tinfoil that would rust through. The
first pinhole leaks would slow rusting in the rest of the pan by coating the
bottom of the engine's pan in a layer of oil
5. Crankcase ventilation openings
Sometimes there was a kit sometimes you needed to replace the whole
valve cover... depends on the year and which opening. Pressure buildup
would bulge or blow out seals and sometimes puke oil into the airbox.
6. Oil cap
Sometimes they need replacement.
7. Front pinion seals
Leaks on the driver's side
8. Steering gear and pump
Driver's side
9. Transmission cooler and lines (with autoboxes)
Un-maintained transmissions have brown fluid instead of red.
10. Emissions hoses
They get brittle crack and split. They carry engine fumes to be
re-burned and can leak through the cracks
11.. Rear main
Dead center at the back of the oilpan or bellhousing.
They aren't in any particular order other than the valve cover which is the
number one cause of 'rear main' leaks.
Diagnosis..... you have to either degrease the engine and recheck daily or
spend the afternoon driving through the mud like Mike recommends.... dried
mud reveals new leaks as wet spots.
"jerryg" <Gregginn7@msn.com> wrote in message
news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> How do I know it's not the rear main seal? Is there any thing I can do
> to rule it out?
>
> Greg
> Carl wrote:
>> Front of the bellhousing is not a rear main seal. Check that valve cover
>> again, very carefully..
>>
>> Carl
>>
>>
>> "jerryg" <Gregginn7@msn.com> wrote in message
>> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
>> > Thanks everyone, I really appreciate all the input! The oil is dripping
>> > down the front of the bell housing. I don't know much about engines but
>> > it still appears to the main seal. I am going to take the advice of all
>> > here who posted just to rule eveything else out. I really do appreciate
>> > everything. I love this vehicle. Thanks again to all!! Have a good
>> > Holiday!
>> >
>> > Greg
>> > Mike Romain wrote:
>> >> The oil pan itself can be leaking and running back. You might want to
>> >> gently put a wrench on the bolts holding it on.
>> >>
>> >> The drain bolt's washer is 'supposed' to get changed regularly and it
>> >> can leak. Usually they don't get changed. I have a box of washers
>> >> and
>> >> change mine every couple oil changes.
>> >>
>> >> The dipstick base can be leaking slightly and running back.
>> >>
>> >> The oil filter base can be leaking slightly and running back.
>> >>
>> >> Or it could be the rear main seal....
>> >>
>> >> At least the rear main can be done in the vehicle...
>> >>
>> >> Mike
>> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> >> 88 Cherokee 235 BFG AT's
>> >> Canadian Off Road Trips Photos: Non members can still view!
>> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> >> (More Off Road album links at bottom of the view page)
>> >>
>> >> jerryg wrote:
>> >> >
>> >> > Good evening to all,
>> >> >
>> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
>> >> > engine. From what I've read, the usual culprit is a bad valve cover
>> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
>> >> > cover and on top of the bell housing, I can detect no oil leaking. I
>> >> > am
>> >> > guessing a bad main seal. Is this a death sentence for the engine or
>> >> > a
>> >> > repair that can add many more miles of enjoyment? The leak is not
>> >> > that
>> >> > bad now, but how soon should it be addressed? I am not much of a
>> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
>> >> > level?
>> >> > The engine only has 72K miles on it. Is this a common occurance? Any
>> >> > help would greatly be appreciated! Thanks in advance.
>> >> >
>> >> > Greg Ginn
>> >
>
Old jeeps leaked oil(s) a lot.... the newer ones leak less.
Other, more experienced Jeepers have already mentioned the causes in
separate posts but I'll condense them:
1. Back of the valve cover
Overwhelming most often cause. Jeep changed the style and
composition of the cover and gasket several times and only recently they
seemed to figure out how to seal the engine. The fix includes getting the
cover gasket flange and head *spotlessly* clean
2. Oil filter mount
Not the filter but the base it screws into that is mounted to the
engine block. There are several "O" rings in there. Jeep went through a
spell where they used a poor choice in materials that would fail and leak.
The repair is to replace the O rings which are about a dollar but the labor
is a pain.
3. Oil drain plug gasket
They eventually fail. You can get new ones at any auto-parts store.
I've heard some cheap bast...err...jeepers have made them by cutting circles
from coffee can lids ..... but I wouldn't know about that...<g>
4. Oil pan
Jeep went through a spell where they got a really good deal on pans
made out of steel the consistency of tinfoil that would rust through. The
first pinhole leaks would slow rusting in the rest of the pan by coating the
bottom of the engine's pan in a layer of oil
5. Crankcase ventilation openings
Sometimes there was a kit sometimes you needed to replace the whole
valve cover... depends on the year and which opening. Pressure buildup
would bulge or blow out seals and sometimes puke oil into the airbox.
6. Oil cap
Sometimes they need replacement.
7. Front pinion seals
Leaks on the driver's side
8. Steering gear and pump
Driver's side
9. Transmission cooler and lines (with autoboxes)
Un-maintained transmissions have brown fluid instead of red.
10. Emissions hoses
They get brittle crack and split. They carry engine fumes to be
re-burned and can leak through the cracks
11.. Rear main
Dead center at the back of the oilpan or bellhousing.
They aren't in any particular order other than the valve cover which is the
number one cause of 'rear main' leaks.
Diagnosis..... you have to either degrease the engine and recheck daily or
spend the afternoon driving through the mud like Mike recommends.... dried
mud reveals new leaks as wet spots.
"jerryg" <Gregginn7@msn.com> wrote in message
news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> How do I know it's not the rear main seal? Is there any thing I can do
> to rule it out?
>
> Greg
> Carl wrote:
>> Front of the bellhousing is not a rear main seal. Check that valve cover
>> again, very carefully..
>>
>> Carl
>>
>>
>> "jerryg" <Gregginn7@msn.com> wrote in message
>> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
>> > Thanks everyone, I really appreciate all the input! The oil is dripping
>> > down the front of the bell housing. I don't know much about engines but
>> > it still appears to the main seal. I am going to take the advice of all
>> > here who posted just to rule eveything else out. I really do appreciate
>> > everything. I love this vehicle. Thanks again to all!! Have a good
>> > Holiday!
>> >
>> > Greg
>> > Mike Romain wrote:
>> >> The oil pan itself can be leaking and running back. You might want to
>> >> gently put a wrench on the bolts holding it on.
>> >>
>> >> The drain bolt's washer is 'supposed' to get changed regularly and it
>> >> can leak. Usually they don't get changed. I have a box of washers
>> >> and
>> >> change mine every couple oil changes.
>> >>
>> >> The dipstick base can be leaking slightly and running back.
>> >>
>> >> The oil filter base can be leaking slightly and running back.
>> >>
>> >> Or it could be the rear main seal....
>> >>
>> >> At least the rear main can be done in the vehicle...
>> >>
>> >> Mike
>> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> >> 88 Cherokee 235 BFG AT's
>> >> Canadian Off Road Trips Photos: Non members can still view!
>> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
>> >> (More Off Road album links at bottom of the view page)
>> >>
>> >> jerryg wrote:
>> >> >
>> >> > Good evening to all,
>> >> >
>> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
>> >> > engine. From what I've read, the usual culprit is a bad valve cover
>> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
>> >> > cover and on top of the bell housing, I can detect no oil leaking. I
>> >> > am
>> >> > guessing a bad main seal. Is this a death sentence for the engine or
>> >> > a
>> >> > repair that can add many more miles of enjoyment? The leak is not
>> >> > that
>> >> > bad now, but how soon should it be addressed? I am not much of a
>> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
>> >> > level?
>> >> > The engine only has 72K miles on it. Is this a common occurance? Any
>> >> > help would greatly be appreciated! Thanks in advance.
>> >> >
>> >> > Greg Ginn
>> >
>
Guest
Posts: n/a
Re: Oil leak
Got It
billy ray wrote:
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
>
>
> "jerryg" <Gregginn7@msn.com> wrote in message
> news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> > How do I know it's not the rear main seal? Is there any thing I can do
> > to rule it out?
> >
> > Greg
> > Carl wrote:
> >> Front of the bellhousing is not a rear main seal. Check that valve cover
> >> again, very carefully..
> >>
> >> Carl
> >>
> >>
> >> "jerryg" <Gregginn7@msn.com> wrote in message
> >> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
> >> > Thanks everyone, I really appreciate all the input! The oil is dripping
> >> > down the front of the bell housing. I don't know much about engines but
> >> > it still appears to the main seal. I am going to take the advice of all
> >> > here who posted just to rule eveything else out. I really do appreciate
> >> > everything. I love this vehicle. Thanks again to all!! Have a good
> >> > Holiday!
> >> >
> >> > Greg
> >> > Mike Romain wrote:
> >> >> The oil pan itself can be leaking and running back. You might want to
> >> >> gently put a wrench on the bolts holding it on.
> >> >>
> >> >> The drain bolt's washer is 'supposed' to get changed regularly and it
> >> >> can leak. Usually they don't get changed. I have a box of washers
> >> >> and
> >> >> change mine every couple oil changes.
> >> >>
> >> >> The dipstick base can be leaking slightly and running back.
> >> >>
> >> >> The oil filter base can be leaking slightly and running back.
> >> >>
> >> >> Or it could be the rear main seal....
> >> >>
> >> >> At least the rear main can be done in the vehicle...
> >> >>
> >> >> Mike
> >> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> >> 88 Cherokee 235 BFG AT's
> >> >> Canadian Off Road Trips Photos: Non members can still view!
> >> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> >> >> (More Off Road album links at bottom of the view page)
> >> >>
> >> >> jerryg wrote:
> >> >> >
> >> >> > Good evening to all,
> >> >> >
> >> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
> >> >> > engine. From what I've read, the usual culprit is a bad valve cover
> >> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
> >> >> > cover and on top of the bell housing, I can detect no oil leaking. I
> >> >> > am
> >> >> > guessing a bad main seal. Is this a death sentence for the engine or
> >> >> > a
> >> >> > repair that can add many more miles of enjoyment? The leak is not
> >> >> > that
> >> >> > bad now, but how soon should it be addressed? I am not much of a
> >> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
> >> >> > level?
> >> >> > The engine only has 72K miles on it. Is this a common occurance? Any
> >> >> > help would greatly be appreciated! Thanks in advance.
> >> >> >
> >> >> > Greg Ginn
> >> >
> >
billy ray wrote:
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
>
>
> "jerryg" <Gregginn7@msn.com> wrote in message
> news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> > How do I know it's not the rear main seal? Is there any thing I can do
> > to rule it out?
> >
> > Greg
> > Carl wrote:
> >> Front of the bellhousing is not a rear main seal. Check that valve cover
> >> again, very carefully..
> >>
> >> Carl
> >>
> >>
> >> "jerryg" <Gregginn7@msn.com> wrote in message
> >> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
> >> > Thanks everyone, I really appreciate all the input! The oil is dripping
> >> > down the front of the bell housing. I don't know much about engines but
> >> > it still appears to the main seal. I am going to take the advice of all
> >> > here who posted just to rule eveything else out. I really do appreciate
> >> > everything. I love this vehicle. Thanks again to all!! Have a good
> >> > Holiday!
> >> >
> >> > Greg
> >> > Mike Romain wrote:
> >> >> The oil pan itself can be leaking and running back. You might want to
> >> >> gently put a wrench on the bolts holding it on.
> >> >>
> >> >> The drain bolt's washer is 'supposed' to get changed regularly and it
> >> >> can leak. Usually they don't get changed. I have a box of washers
> >> >> and
> >> >> change mine every couple oil changes.
> >> >>
> >> >> The dipstick base can be leaking slightly and running back.
> >> >>
> >> >> The oil filter base can be leaking slightly and running back.
> >> >>
> >> >> Or it could be the rear main seal....
> >> >>
> >> >> At least the rear main can be done in the vehicle...
> >> >>
> >> >> Mike
> >> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> >> 88 Cherokee 235 BFG AT's
> >> >> Canadian Off Road Trips Photos: Non members can still view!
> >> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> >> >> (More Off Road album links at bottom of the view page)
> >> >>
> >> >> jerryg wrote:
> >> >> >
> >> >> > Good evening to all,
> >> >> >
> >> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
> >> >> > engine. From what I've read, the usual culprit is a bad valve cover
> >> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
> >> >> > cover and on top of the bell housing, I can detect no oil leaking. I
> >> >> > am
> >> >> > guessing a bad main seal. Is this a death sentence for the engine or
> >> >> > a
> >> >> > repair that can add many more miles of enjoyment? The leak is not
> >> >> > that
> >> >> > bad now, but how soon should it be addressed? I am not much of a
> >> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
> >> >> > level?
> >> >> > The engine only has 72K miles on it. Is this a common occurance? Any
> >> >> > help would greatly be appreciated! Thanks in advance.
> >> >> >
> >> >> > Greg Ginn
> >> >
> >
Guest
Posts: n/a
Re: Oil leak
Got It
billy ray wrote:
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
>
>
> "jerryg" <Gregginn7@msn.com> wrote in message
> news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> > How do I know it's not the rear main seal? Is there any thing I can do
> > to rule it out?
> >
> > Greg
> > Carl wrote:
> >> Front of the bellhousing is not a rear main seal. Check that valve cover
> >> again, very carefully..
> >>
> >> Carl
> >>
> >>
> >> "jerryg" <Gregginn7@msn.com> wrote in message
> >> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
> >> > Thanks everyone, I really appreciate all the input! The oil is dripping
> >> > down the front of the bell housing. I don't know much about engines but
> >> > it still appears to the main seal. I am going to take the advice of all
> >> > here who posted just to rule eveything else out. I really do appreciate
> >> > everything. I love this vehicle. Thanks again to all!! Have a good
> >> > Holiday!
> >> >
> >> > Greg
> >> > Mike Romain wrote:
> >> >> The oil pan itself can be leaking and running back. You might want to
> >> >> gently put a wrench on the bolts holding it on.
> >> >>
> >> >> The drain bolt's washer is 'supposed' to get changed regularly and it
> >> >> can leak. Usually they don't get changed. I have a box of washers
> >> >> and
> >> >> change mine every couple oil changes.
> >> >>
> >> >> The dipstick base can be leaking slightly and running back.
> >> >>
> >> >> The oil filter base can be leaking slightly and running back.
> >> >>
> >> >> Or it could be the rear main seal....
> >> >>
> >> >> At least the rear main can be done in the vehicle...
> >> >>
> >> >> Mike
> >> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> >> 88 Cherokee 235 BFG AT's
> >> >> Canadian Off Road Trips Photos: Non members can still view!
> >> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> >> >> (More Off Road album links at bottom of the view page)
> >> >>
> >> >> jerryg wrote:
> >> >> >
> >> >> > Good evening to all,
> >> >> >
> >> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
> >> >> > engine. From what I've read, the usual culprit is a bad valve cover
> >> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
> >> >> > cover and on top of the bell housing, I can detect no oil leaking. I
> >> >> > am
> >> >> > guessing a bad main seal. Is this a death sentence for the engine or
> >> >> > a
> >> >> > repair that can add many more miles of enjoyment? The leak is not
> >> >> > that
> >> >> > bad now, but how soon should it be addressed? I am not much of a
> >> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
> >> >> > level?
> >> >> > The engine only has 72K miles on it. Is this a common occurance? Any
> >> >> > help would greatly be appreciated! Thanks in advance.
> >> >> >
> >> >> > Greg Ginn
> >> >
> >
billy ray wrote:
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
>
>
> "jerryg" <Gregginn7@msn.com> wrote in message
> news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> > How do I know it's not the rear main seal? Is there any thing I can do
> > to rule it out?
> >
> > Greg
> > Carl wrote:
> >> Front of the bellhousing is not a rear main seal. Check that valve cover
> >> again, very carefully..
> >>
> >> Carl
> >>
> >>
> >> "jerryg" <Gregginn7@msn.com> wrote in message
> >> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
> >> > Thanks everyone, I really appreciate all the input! The oil is dripping
> >> > down the front of the bell housing. I don't know much about engines but
> >> > it still appears to the main seal. I am going to take the advice of all
> >> > here who posted just to rule eveything else out. I really do appreciate
> >> > everything. I love this vehicle. Thanks again to all!! Have a good
> >> > Holiday!
> >> >
> >> > Greg
> >> > Mike Romain wrote:
> >> >> The oil pan itself can be leaking and running back. You might want to
> >> >> gently put a wrench on the bolts holding it on.
> >> >>
> >> >> The drain bolt's washer is 'supposed' to get changed regularly and it
> >> >> can leak. Usually they don't get changed. I have a box of washers
> >> >> and
> >> >> change mine every couple oil changes.
> >> >>
> >> >> The dipstick base can be leaking slightly and running back.
> >> >>
> >> >> The oil filter base can be leaking slightly and running back.
> >> >>
> >> >> Or it could be the rear main seal....
> >> >>
> >> >> At least the rear main can be done in the vehicle...
> >> >>
> >> >> Mike
> >> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> >> 88 Cherokee 235 BFG AT's
> >> >> Canadian Off Road Trips Photos: Non members can still view!
> >> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> >> >> (More Off Road album links at bottom of the view page)
> >> >>
> >> >> jerryg wrote:
> >> >> >
> >> >> > Good evening to all,
> >> >> >
> >> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
> >> >> > engine. From what I've read, the usual culprit is a bad valve cover
> >> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
> >> >> > cover and on top of the bell housing, I can detect no oil leaking. I
> >> >> > am
> >> >> > guessing a bad main seal. Is this a death sentence for the engine or
> >> >> > a
> >> >> > repair that can add many more miles of enjoyment? The leak is not
> >> >> > that
> >> >> > bad now, but how soon should it be addressed? I am not much of a
> >> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
> >> >> > level?
> >> >> > The engine only has 72K miles on it. Is this a common occurance? Any
> >> >> > help would greatly be appreciated! Thanks in advance.
> >> >> >
> >> >> > Greg Ginn
> >> >
> >
Guest
Posts: n/a
Re: Oil leak
Got It
billy ray wrote:
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
>
>
> "jerryg" <Gregginn7@msn.com> wrote in message
> news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> > How do I know it's not the rear main seal? Is there any thing I can do
> > to rule it out?
> >
> > Greg
> > Carl wrote:
> >> Front of the bellhousing is not a rear main seal. Check that valve cover
> >> again, very carefully..
> >>
> >> Carl
> >>
> >>
> >> "jerryg" <Gregginn7@msn.com> wrote in message
> >> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
> >> > Thanks everyone, I really appreciate all the input! The oil is dripping
> >> > down the front of the bell housing. I don't know much about engines but
> >> > it still appears to the main seal. I am going to take the advice of all
> >> > here who posted just to rule eveything else out. I really do appreciate
> >> > everything. I love this vehicle. Thanks again to all!! Have a good
> >> > Holiday!
> >> >
> >> > Greg
> >> > Mike Romain wrote:
> >> >> The oil pan itself can be leaking and running back. You might want to
> >> >> gently put a wrench on the bolts holding it on.
> >> >>
> >> >> The drain bolt's washer is 'supposed' to get changed regularly and it
> >> >> can leak. Usually they don't get changed. I have a box of washers
> >> >> and
> >> >> change mine every couple oil changes.
> >> >>
> >> >> The dipstick base can be leaking slightly and running back.
> >> >>
> >> >> The oil filter base can be leaking slightly and running back.
> >> >>
> >> >> Or it could be the rear main seal....
> >> >>
> >> >> At least the rear main can be done in the vehicle...
> >> >>
> >> >> Mike
> >> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> >> 88 Cherokee 235 BFG AT's
> >> >> Canadian Off Road Trips Photos: Non members can still view!
> >> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> >> >> (More Off Road album links at bottom of the view page)
> >> >>
> >> >> jerryg wrote:
> >> >> >
> >> >> > Good evening to all,
> >> >> >
> >> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
> >> >> > engine. From what I've read, the usual culprit is a bad valve cover
> >> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
> >> >> > cover and on top of the bell housing, I can detect no oil leaking. I
> >> >> > am
> >> >> > guessing a bad main seal. Is this a death sentence for the engine or
> >> >> > a
> >> >> > repair that can add many more miles of enjoyment? The leak is not
> >> >> > that
> >> >> > bad now, but how soon should it be addressed? I am not much of a
> >> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
> >> >> > level?
> >> >> > The engine only has 72K miles on it. Is this a common occurance? Any
> >> >> > help would greatly be appreciated! Thanks in advance.
> >> >> >
> >> >> > Greg Ginn
> >> >
> >
billy ray wrote:
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
>
>
> "jerryg" <Gregginn7@msn.com> wrote in message
> news:1166276706.236893.22400@t46g2000cwa.googlegro ups.com...
> > How do I know it's not the rear main seal? Is there any thing I can do
> > to rule it out?
> >
> > Greg
> > Carl wrote:
> >> Front of the bellhousing is not a rear main seal. Check that valve cover
> >> again, very carefully..
> >>
> >> Carl
> >>
> >>
> >> "jerryg" <Gregginn7@msn.com> wrote in message
> >> news:1165770230.402199.197310@l12g2000cwl.googlegr oups.com...
> >> > Thanks everyone, I really appreciate all the input! The oil is dripping
> >> > down the front of the bell housing. I don't know much about engines but
> >> > it still appears to the main seal. I am going to take the advice of all
> >> > here who posted just to rule eveything else out. I really do appreciate
> >> > everything. I love this vehicle. Thanks again to all!! Have a good
> >> > Holiday!
> >> >
> >> > Greg
> >> > Mike Romain wrote:
> >> >> The oil pan itself can be leaking and running back. You might want to
> >> >> gently put a wrench on the bolts holding it on.
> >> >>
> >> >> The drain bolt's washer is 'supposed' to get changed regularly and it
> >> >> can leak. Usually they don't get changed. I have a box of washers
> >> >> and
> >> >> change mine every couple oil changes.
> >> >>
> >> >> The dipstick base can be leaking slightly and running back.
> >> >>
> >> >> The oil filter base can be leaking slightly and running back.
> >> >>
> >> >> Or it could be the rear main seal....
> >> >>
> >> >> At least the rear main can be done in the vehicle...
> >> >>
> >> >> Mike
> >> >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> >> 88 Cherokee 235 BFG AT's
> >> >> Canadian Off Road Trips Photos: Non members can still view!
> >> >> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> >> >> (More Off Road album links at bottom of the view page)
> >> >>
> >> >> jerryg wrote:
> >> >> >
> >> >> > Good evening to all,
> >> >> >
> >> >> > I just purchased a 95 Wrangler YJ. Has a small oil leak at rear of
> >> >> > engine. From what I've read, the usual culprit is a bad valve cover
> >> >> > gasket. Upon a visual inspection, and a quick feel behind the valve
> >> >> > cover and on top of the bell housing, I can detect no oil leaking. I
> >> >> > am
> >> >> > guessing a bad main seal. Is this a death sentence for the engine or
> >> >> > a
> >> >> > repair that can add many more miles of enjoyment? The leak is not
> >> >> > that
> >> >> > bad now, but how soon should it be addressed? I am not much of a
> >> >> > mechanic, but am not affraid to tackle a repair job. Difficulty
> >> >> > level?
> >> >> > The engine only has 72K miles on it. Is this a common occurance? Any
> >> >> > help would greatly be appreciated! Thanks in advance.
> >> >> >
> >> >> > Greg Ginn
> >> >
> >
Guest
Posts: n/a
Re: Oil leak
They're just marking their territory.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
billy ray wrote:
>
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
billy ray wrote:
>
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
Guest
Posts: n/a
Re: Oil leak
They're just marking their territory.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
billy ray wrote:
>
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
billy ray wrote:
>
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
Guest
Posts: n/a
Re: Oil leak
They're just marking their territory.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
billy ray wrote:
>
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
billy ray wrote:
>
> Greg,
>
> Old jeeps leaked oil(s) a lot.... the newer ones leak less.
>
> Other, more experienced Jeepers have already mentioned the causes in
> separate posts but I'll condense them:
>
> 1. Back of the valve cover
> Overwhelming most often cause. Jeep changed the style and
> composition of the cover and gasket several times and only recently they
> seemed to figure out how to seal the engine. The fix includes getting the
> cover gasket flange and head *spotlessly* clean
>
> 2. Oil filter mount
> Not the filter but the base it screws into that is mounted to the
> engine block. There are several "O" rings in there. Jeep went through a
> spell where they used a poor choice in materials that would fail and leak.
> The repair is to replace the O rings which are about a dollar but the labor
> is a pain.
>
> 3. Oil drain plug gasket
> They eventually fail. You can get new ones at any auto-parts store.
> I've heard some cheap bast...err...jeepers have made them by cutting circles
> from coffee can lids ..... but I wouldn't know about that...<g>
>
> 4. Oil pan
> Jeep went through a spell where they got a really good deal on pans
> made out of steel the consistency of tinfoil that would rust through. The
> first pinhole leaks would slow rusting in the rest of the pan by coating the
> bottom of the engine's pan in a layer of oil
>
> 5. Crankcase ventilation openings
> Sometimes there was a kit sometimes you needed to replace the whole
> valve cover... depends on the year and which opening. Pressure buildup
> would bulge or blow out seals and sometimes puke oil into the airbox.
>
> 6. Oil cap
> Sometimes they need replacement.
>
> 7. Front pinion seals
> Leaks on the driver's side
>
> 8. Steering gear and pump
> Driver's side
>
> 9. Transmission cooler and lines (with autoboxes)
> Un-maintained transmissions have brown fluid instead of red.
>
> 10. Emissions hoses
> They get brittle crack and split. They carry engine fumes to be
> re-burned and can leak through the cracks
>
> 11.. Rear main
> Dead center at the back of the oilpan or bellhousing.
>
> They aren't in any particular order other than the valve cover which is the
> number one cause of 'rear main' leaks.
>
> Diagnosis..... you have to either degrease the engine and recheck daily or
> spend the afternoon driving through the mud like Mike recommends.... dried
> mud reveals new leaks as wet spots.
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