Rear Main Oil Seal
03-14-2007, 08:45 AM
#21
Guest
Posts: n/a
Re: Rear Main Oil Seal
On Mar 13, 8:39 pm, "Jeff Strickland" <c...@verizon.net> wrote:
> The rear main is probably okay. The actual problem is usually the valve
> cover gasket.
>
> I replaced my rear main twice before I found this out. And, I was able to
> physically watch the oil flow out the back of the valve cover, near the
> firewall.
>
> "Edward R. Wojciechowski JR" <w...@andrew.cmu.edu> wrote in messagenews:007601c7657a$72f283a0$64380280@andrew. ad.cmu.edu...
>
> >I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> > leak. I was wondering if there was a good web site to go to for
> > instructions
> > on replacing this before it's to late. Thanks in advance..
I just replaced my rear main seal, and it was actually the rear main
seal as I had already replaced the valve cover gasket. However the
valve cover job was much easier to accomplish. I don't want to do the
seal job again for a very long time. The top seal was easier to get
out once I found that if you push up with a punch on the right hand
side (passenger) of the upper seal while someone else turns the
crankshaft it will rotate right out.
> The rear main is probably okay. The actual problem is usually the valve
> cover gasket.
>
> I replaced my rear main twice before I found this out. And, I was able to
> physically watch the oil flow out the back of the valve cover, near the
> firewall.
>
> "Edward R. Wojciechowski JR" <w...@andrew.cmu.edu> wrote in messagenews:007601c7657a$72f283a0$64380280@andrew. ad.cmu.edu...
>
> >I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> > leak. I was wondering if there was a good web site to go to for
> > instructions
> > on replacing this before it's to late. Thanks in advance..
I just replaced my rear main seal, and it was actually the rear main
seal as I had already replaced the valve cover gasket. However the
valve cover job was much easier to accomplish. I don't want to do the
seal job again for a very long time. The top seal was easier to get
out once I found that if you push up with a punch on the right hand
side (passenger) of the upper seal while someone else turns the
crankshaft it will rotate right out.
03-14-2007, 08:45 AM
#22
Guest
Posts: n/a
Re: Rear Main Oil Seal
On Mar 13, 8:39 pm, "Jeff Strickland" <c...@verizon.net> wrote:
> The rear main is probably okay. The actual problem is usually the valve
> cover gasket.
>
> I replaced my rear main twice before I found this out. And, I was able to
> physically watch the oil flow out the back of the valve cover, near the
> firewall.
>
> "Edward R. Wojciechowski JR" <w...@andrew.cmu.edu> wrote in messagenews:007601c7657a$72f283a0$64380280@andrew. ad.cmu.edu...
>
> >I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> > leak. I was wondering if there was a good web site to go to for
> > instructions
> > on replacing this before it's to late. Thanks in advance..
I just replaced my rear main seal, and it was actually the rear main
seal as I had already replaced the valve cover gasket. However the
valve cover job was much easier to accomplish. I don't want to do the
seal job again for a very long time. The top seal was easier to get
out once I found that if you push up with a punch on the right hand
side (passenger) of the upper seal while someone else turns the
crankshaft it will rotate right out.
> The rear main is probably okay. The actual problem is usually the valve
> cover gasket.
>
> I replaced my rear main twice before I found this out. And, I was able to
> physically watch the oil flow out the back of the valve cover, near the
> firewall.
>
> "Edward R. Wojciechowski JR" <w...@andrew.cmu.edu> wrote in messagenews:007601c7657a$72f283a0$64380280@andrew. ad.cmu.edu...
>
> >I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> > leak. I was wondering if there was a good web site to go to for
> > instructions
> > on replacing this before it's to late. Thanks in advance..
I just replaced my rear main seal, and it was actually the rear main
seal as I had already replaced the valve cover gasket. However the
valve cover job was much easier to accomplish. I don't want to do the
seal job again for a very long time. The top seal was easier to get
out once I found that if you push up with a punch on the right hand
side (passenger) of the upper seal while someone else turns the
crankshaft it will rotate right out.
03-14-2007, 02:14 PM
#23
Guest
Posts: n/a
Re: Rear Main Oil Seal
On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for instructions
> on replacing this before it's to late. Thanks in advance..
In addition to the good advice others posted, you might want to eyeball
your air filter element for signs of oil. If your engine is blowing oil
onto the air filter your CCV system is plugged and that will make your
valve cover leak. Been there, done that...
The CCV tubing and grommet aren't really serviceable, you buy the whole
harness and simply swap it.
See:
http://jeep.off-road.com/jeep/articl....jsp?id=257985
--
"We began to realize, as we plowed on with the destruction of New Jersey,
that the extent of our American lunatic fringe had been underestimated."
Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for instructions
> on replacing this before it's to late. Thanks in advance..
In addition to the good advice others posted, you might want to eyeball
your air filter element for signs of oil. If your engine is blowing oil
onto the air filter your CCV system is plugged and that will make your
valve cover leak. Been there, done that...
The CCV tubing and grommet aren't really serviceable, you buy the whole
harness and simply swap it.
See:
http://jeep.off-road.com/jeep/articl....jsp?id=257985
--
"We began to realize, as we plowed on with the destruction of New Jersey,
that the extent of our American lunatic fringe had been underestimated."
Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
03-14-2007, 02:14 PM
#24
Guest
Posts: n/a
Re: Rear Main Oil Seal
On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for instructions
> on replacing this before it's to late. Thanks in advance..
In addition to the good advice others posted, you might want to eyeball
your air filter element for signs of oil. If your engine is blowing oil
onto the air filter your CCV system is plugged and that will make your
valve cover leak. Been there, done that...
The CCV tubing and grommet aren't really serviceable, you buy the whole
harness and simply swap it.
See:
http://jeep.off-road.com/jeep/articl....jsp?id=257985
--
"We began to realize, as we plowed on with the destruction of New Jersey,
that the extent of our American lunatic fringe had been underestimated."
Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for instructions
> on replacing this before it's to late. Thanks in advance..
In addition to the good advice others posted, you might want to eyeball
your air filter element for signs of oil. If your engine is blowing oil
onto the air filter your CCV system is plugged and that will make your
valve cover leak. Been there, done that...
The CCV tubing and grommet aren't really serviceable, you buy the whole
harness and simply swap it.
See:
http://jeep.off-road.com/jeep/articl....jsp?id=257985
--
"We began to realize, as we plowed on with the destruction of New Jersey,
that the extent of our American lunatic fringe had been underestimated."
Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
03-14-2007, 02:14 PM
#25
Guest
Posts: n/a
Re: Rear Main Oil Seal
On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for instructions
> on replacing this before it's to late. Thanks in advance..
In addition to the good advice others posted, you might want to eyeball
your air filter element for signs of oil. If your engine is blowing oil
onto the air filter your CCV system is plugged and that will make your
valve cover leak. Been there, done that...
The CCV tubing and grommet aren't really serviceable, you buy the whole
harness and simply swap it.
See:
http://jeep.off-road.com/jeep/articl....jsp?id=257985
--
"We began to realize, as we plowed on with the destruction of New Jersey,
that the extent of our American lunatic fringe had been underestimated."
Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for instructions
> on replacing this before it's to late. Thanks in advance..
In addition to the good advice others posted, you might want to eyeball
your air filter element for signs of oil. If your engine is blowing oil
onto the air filter your CCV system is plugged and that will make your
valve cover leak. Been there, done that...
The CCV tubing and grommet aren't really serviceable, you buy the whole
harness and simply swap it.
See:
http://jeep.off-road.com/jeep/articl....jsp?id=257985
--
"We began to realize, as we plowed on with the destruction of New Jersey,
that the extent of our American lunatic fringe had been underestimated."
Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
03-14-2007, 04:09 PM
#26
Guest
Posts: n/a
Re: Rear Main Oil Seal
I use carb cleaner spray and soak my CCV tube with it, then ream it with
a chunk of wire. A paper clip will work to ream the grommet's hole.
It works for me. Mine blocks every couple years with 315K km on her.
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)
Lee Ayrton wrote:
> On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
>
>> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
>> leak. I was wondering if there was a good web site to go to for
>> instructions
>> on replacing this before it's to late. Thanks in advance..
>
> In addition to the good advice others posted, you might want to eyeball
> your air filter element for signs of oil. If your engine is blowing oil
> onto the air filter your CCV system is plugged and that will make your
> valve cover leak. Been there, done that...
>
> The CCV tubing and grommet aren't really serviceable, you buy the whole
> harness and simply swap it.
>
> See:
> http://jeep.off-road.com/jeep/articl....jsp?id=257985
>
>
>
>
> --
> "We began to realize, as we plowed on with the destruction of New Jersey,
> that the extent of our American lunatic fringe had been underestimated."
> Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
>
a chunk of wire. A paper clip will work to ream the grommet's hole.
It works for me. Mine blocks every couple years with 315K km on her.
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)
Lee Ayrton wrote:
> On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
>
>> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
>> leak. I was wondering if there was a good web site to go to for
>> instructions
>> on replacing this before it's to late. Thanks in advance..
>
> In addition to the good advice others posted, you might want to eyeball
> your air filter element for signs of oil. If your engine is blowing oil
> onto the air filter your CCV system is plugged and that will make your
> valve cover leak. Been there, done that...
>
> The CCV tubing and grommet aren't really serviceable, you buy the whole
> harness and simply swap it.
>
> See:
> http://jeep.off-road.com/jeep/articl....jsp?id=257985
>
>
>
>
> --
> "We began to realize, as we plowed on with the destruction of New Jersey,
> that the extent of our American lunatic fringe had been underestimated."
> Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
>
03-14-2007, 04:09 PM
#27
Guest
Posts: n/a
Re: Rear Main Oil Seal
I use carb cleaner spray and soak my CCV tube with it, then ream it with
a chunk of wire. A paper clip will work to ream the grommet's hole.
It works for me. Mine blocks every couple years with 315K km on her.
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)
Lee Ayrton wrote:
> On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
>
>> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
>> leak. I was wondering if there was a good web site to go to for
>> instructions
>> on replacing this before it's to late. Thanks in advance..
>
> In addition to the good advice others posted, you might want to eyeball
> your air filter element for signs of oil. If your engine is blowing oil
> onto the air filter your CCV system is plugged and that will make your
> valve cover leak. Been there, done that...
>
> The CCV tubing and grommet aren't really serviceable, you buy the whole
> harness and simply swap it.
>
> See:
> http://jeep.off-road.com/jeep/articl....jsp?id=257985
>
>
>
>
> --
> "We began to realize, as we plowed on with the destruction of New Jersey,
> that the extent of our American lunatic fringe had been underestimated."
> Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
>
a chunk of wire. A paper clip will work to ream the grommet's hole.
It works for me. Mine blocks every couple years with 315K km on her.
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)
Lee Ayrton wrote:
> On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
>
>> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
>> leak. I was wondering if there was a good web site to go to for
>> instructions
>> on replacing this before it's to late. Thanks in advance..
>
> In addition to the good advice others posted, you might want to eyeball
> your air filter element for signs of oil. If your engine is blowing oil
> onto the air filter your CCV system is plugged and that will make your
> valve cover leak. Been there, done that...
>
> The CCV tubing and grommet aren't really serviceable, you buy the whole
> harness and simply swap it.
>
> See:
> http://jeep.off-road.com/jeep/articl....jsp?id=257985
>
>
>
>
> --
> "We began to realize, as we plowed on with the destruction of New Jersey,
> that the extent of our American lunatic fringe had been underestimated."
> Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
>
03-14-2007, 04:09 PM
#28
Guest
Posts: n/a
Re: Rear Main Oil Seal
I use carb cleaner spray and soak my CCV tube with it, then ream it with
a chunk of wire. A paper clip will work to ream the grommet's hole.
It works for me. Mine blocks every couple years with 315K km on her.
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)
Lee Ayrton wrote:
> On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
>
>> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
>> leak. I was wondering if there was a good web site to go to for
>> instructions
>> on replacing this before it's to late. Thanks in advance..
>
> In addition to the good advice others posted, you might want to eyeball
> your air filter element for signs of oil. If your engine is blowing oil
> onto the air filter your CCV system is plugged and that will make your
> valve cover leak. Been there, done that...
>
> The CCV tubing and grommet aren't really serviceable, you buy the whole
> harness and simply swap it.
>
> See:
> http://jeep.off-road.com/jeep/articl....jsp?id=257985
>
>
>
>
> --
> "We began to realize, as we plowed on with the destruction of New Jersey,
> that the extent of our American lunatic fringe had been underestimated."
> Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
>
a chunk of wire. A paper clip will work to ream the grommet's hole.
It works for me. Mine blocks every couple years with 315K km on her.
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)
Lee Ayrton wrote:
> On Tue, 13 Mar 2007, Edward R. Wojciechowski JR wrote:
>
>> I have a '96 GC 4.0 with 170k and it looks like the seal is starting to
>> leak. I was wondering if there was a good web site to go to for
>> instructions
>> on replacing this before it's to late. Thanks in advance..
>
> In addition to the good advice others posted, you might want to eyeball
> your air filter element for signs of oil. If your engine is blowing oil
> onto the air filter your CCV system is plugged and that will make your
> valve cover leak. Been there, done that...
>
> The CCV tubing and grommet aren't really serviceable, you buy the whole
> harness and simply swap it.
>
> See:
> http://jeep.off-road.com/jeep/articl....jsp?id=257985
>
>
>
>
> --
> "We began to realize, as we plowed on with the destruction of New Jersey,
> that the extent of our American lunatic fringe had been underestimated."
> Orson Wells on the reaction to the _War Of The Worlds_ broadcast.
>
03-14-2007, 11:52 PM
#29
Guest
Posts: n/a
Re: Rear Main Oil Seal
Edward R. Wojciechowski JR proclaimed:
> I have a ’96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for
> instructions on replacing this before it’s to late. Thanks in advance……
>
Before you do this, check along the back of the block. The most common
cause of this leak is the valve cover, the oil runs down the back of the
block and looks pretty much exactly like a rear seal. The seals DO go
bad, but more often it is the cover.
Google for Jeep 4.0 rear main seal replace and pick the site with the
best pictures.
> I have a ’96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for
> instructions on replacing this before it’s to late. Thanks in advance……
>
Before you do this, check along the back of the block. The most common
cause of this leak is the valve cover, the oil runs down the back of the
block and looks pretty much exactly like a rear seal. The seals DO go
bad, but more often it is the cover.
Google for Jeep 4.0 rear main seal replace and pick the site with the
best pictures.
03-14-2007, 11:52 PM
#30
Guest
Posts: n/a
Re: Rear Main Oil Seal
Edward R. Wojciechowski JR proclaimed:
> I have a ’96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for
> instructions on replacing this before it’s to late. Thanks in advance……
>
Before you do this, check along the back of the block. The most common
cause of this leak is the valve cover, the oil runs down the back of the
block and looks pretty much exactly like a rear seal. The seals DO go
bad, but more often it is the cover.
Google for Jeep 4.0 rear main seal replace and pick the site with the
best pictures.
> I have a ’96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for
> instructions on replacing this before it’s to late. Thanks in advance……
>
Before you do this, check along the back of the block. The most common
cause of this leak is the valve cover, the oil runs down the back of the
block and looks pretty much exactly like a rear seal. The seals DO go
bad, but more often it is the cover.
Google for Jeep 4.0 rear main seal replace and pick the site with the
best pictures.