rear seal leak
04-02-2005, 08:42 AM
#41
Guest
Posts: n/a
Re: rear seal leak
You 'really' should have put a new set of main bearings and maybe a
re-turned crank in it.
Unfortunately a new top end will fast destroy an old crank and bearing
set.
When I saw miss matched parts, I would have run away screaming...
FAST!!!!!
That means someone totally jury rigged an engine so it would run good
enough to sell the sucker to a sucker.
My baseball bat comment still stands. It sounds like you got badly
ripped off sorry to hear....
Mike
HomeBrewer wrote:
>
> I had my mechanic tear it down after I got it. It has new pistons, rings,
> cam etc, just like the receipts that came with it said, but valves were
> mismatched. I had to have the valves, guides and springs replaced, but
> internally it was good. I'll admit I spent too much on this small v8, I
> should have went with a 401 or 350 sb for the $. It dyno'd at 210 hp.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:424D5390.AE3E7AD3@sympatico.ca...
> > Man oh man I sure hate to see such bad rip offs... He got took!
> >
> > I would be looking for the ***@#$% that sold it to me with a base ball
> > bat at least.
> >
> > How do people live with themselves after that kind of a rip off?
> >
> > No oil pressure and leaky seals. Rebuilt my ***. Repainted maybe.
> >
> > The engine I retired still had 12 to 15 psi at it's hottest idle and the
> > 'used' one I put in has 20 - 25 psi at it's hottest idle.
> >
> > Do you think maybe the oil pump is toast so the oil is just full of gas
> > killing the pressure? Could he get that lucky?
> >
> > Mike
> >
> > "L.W.(ßill) ------ III" wrote:
> >>
> >> http://85cj7.blogspot.com/2004_06_01_85cj7_archive.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Mike Romain wrote:
> >> >
> >> > Ouch, I hope you are mistaken about that rebuild Bill....
> >> >
> >> > Mike
> >> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > 88 Cherokee 235 BFG AT's
re-turned crank in it.
Unfortunately a new top end will fast destroy an old crank and bearing
set.
When I saw miss matched parts, I would have run away screaming...
FAST!!!!!
That means someone totally jury rigged an engine so it would run good
enough to sell the sucker to a sucker.
My baseball bat comment still stands. It sounds like you got badly
ripped off sorry to hear....
Mike
HomeBrewer wrote:
>
> I had my mechanic tear it down after I got it. It has new pistons, rings,
> cam etc, just like the receipts that came with it said, but valves were
> mismatched. I had to have the valves, guides and springs replaced, but
> internally it was good. I'll admit I spent too much on this small v8, I
> should have went with a 401 or 350 sb for the $. It dyno'd at 210 hp.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:424D5390.AE3E7AD3@sympatico.ca...
> > Man oh man I sure hate to see such bad rip offs... He got took!
> >
> > I would be looking for the ***@#$% that sold it to me with a base ball
> > bat at least.
> >
> > How do people live with themselves after that kind of a rip off?
> >
> > No oil pressure and leaky seals. Rebuilt my ***. Repainted maybe.
> >
> > The engine I retired still had 12 to 15 psi at it's hottest idle and the
> > 'used' one I put in has 20 - 25 psi at it's hottest idle.
> >
> > Do you think maybe the oil pump is toast so the oil is just full of gas
> > killing the pressure? Could he get that lucky?
> >
> > Mike
> >
> > "L.W.(ßill) ------ III" wrote:
> >>
> >> http://85cj7.blogspot.com/2004_06_01_85cj7_archive.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Mike Romain wrote:
> >> >
> >> > Ouch, I hope you are mistaken about that rebuild Bill....
> >> >
> >> > Mike
> >> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > 88 Cherokee 235 BFG AT's
04-02-2005, 08:42 AM
#42
Guest
Posts: n/a
Re: rear seal leak
You 'really' should have put a new set of main bearings and maybe a
re-turned crank in it.
Unfortunately a new top end will fast destroy an old crank and bearing
set.
When I saw miss matched parts, I would have run away screaming...
FAST!!!!!
That means someone totally jury rigged an engine so it would run good
enough to sell the sucker to a sucker.
My baseball bat comment still stands. It sounds like you got badly
ripped off sorry to hear....
Mike
HomeBrewer wrote:
>
> I had my mechanic tear it down after I got it. It has new pistons, rings,
> cam etc, just like the receipts that came with it said, but valves were
> mismatched. I had to have the valves, guides and springs replaced, but
> internally it was good. I'll admit I spent too much on this small v8, I
> should have went with a 401 or 350 sb for the $. It dyno'd at 210 hp.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:424D5390.AE3E7AD3@sympatico.ca...
> > Man oh man I sure hate to see such bad rip offs... He got took!
> >
> > I would be looking for the ***@#$% that sold it to me with a base ball
> > bat at least.
> >
> > How do people live with themselves after that kind of a rip off?
> >
> > No oil pressure and leaky seals. Rebuilt my ***. Repainted maybe.
> >
> > The engine I retired still had 12 to 15 psi at it's hottest idle and the
> > 'used' one I put in has 20 - 25 psi at it's hottest idle.
> >
> > Do you think maybe the oil pump is toast so the oil is just full of gas
> > killing the pressure? Could he get that lucky?
> >
> > Mike
> >
> > "L.W.(ßill) ------ III" wrote:
> >>
> >> http://85cj7.blogspot.com/2004_06_01_85cj7_archive.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Mike Romain wrote:
> >> >
> >> > Ouch, I hope you are mistaken about that rebuild Bill....
> >> >
> >> > Mike
> >> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > 88 Cherokee 235 BFG AT's
re-turned crank in it.
Unfortunately a new top end will fast destroy an old crank and bearing
set.
When I saw miss matched parts, I would have run away screaming...
FAST!!!!!
That means someone totally jury rigged an engine so it would run good
enough to sell the sucker to a sucker.
My baseball bat comment still stands. It sounds like you got badly
ripped off sorry to hear....
Mike
HomeBrewer wrote:
>
> I had my mechanic tear it down after I got it. It has new pistons, rings,
> cam etc, just like the receipts that came with it said, but valves were
> mismatched. I had to have the valves, guides and springs replaced, but
> internally it was good. I'll admit I spent too much on this small v8, I
> should have went with a 401 or 350 sb for the $. It dyno'd at 210 hp.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:424D5390.AE3E7AD3@sympatico.ca...
> > Man oh man I sure hate to see such bad rip offs... He got took!
> >
> > I would be looking for the ***@#$% that sold it to me with a base ball
> > bat at least.
> >
> > How do people live with themselves after that kind of a rip off?
> >
> > No oil pressure and leaky seals. Rebuilt my ***. Repainted maybe.
> >
> > The engine I retired still had 12 to 15 psi at it's hottest idle and the
> > 'used' one I put in has 20 - 25 psi at it's hottest idle.
> >
> > Do you think maybe the oil pump is toast so the oil is just full of gas
> > killing the pressure? Could he get that lucky?
> >
> > Mike
> >
> > "L.W.(ßill) ------ III" wrote:
> >>
> >> http://85cj7.blogspot.com/2004_06_01_85cj7_archive.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Mike Romain wrote:
> >> >
> >> > Ouch, I hope you are mistaken about that rebuild Bill....
> >> >
> >> > Mike
> >> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > 88 Cherokee 235 BFG AT's
04-02-2005, 08:42 AM
#43
Guest
Posts: n/a
Re: rear seal leak
You 'really' should have put a new set of main bearings and maybe a
re-turned crank in it.
Unfortunately a new top end will fast destroy an old crank and bearing
set.
When I saw miss matched parts, I would have run away screaming...
FAST!!!!!
That means someone totally jury rigged an engine so it would run good
enough to sell the sucker to a sucker.
My baseball bat comment still stands. It sounds like you got badly
ripped off sorry to hear....
Mike
HomeBrewer wrote:
>
> I had my mechanic tear it down after I got it. It has new pistons, rings,
> cam etc, just like the receipts that came with it said, but valves were
> mismatched. I had to have the valves, guides and springs replaced, but
> internally it was good. I'll admit I spent too much on this small v8, I
> should have went with a 401 or 350 sb for the $. It dyno'd at 210 hp.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:424D5390.AE3E7AD3@sympatico.ca...
> > Man oh man I sure hate to see such bad rip offs... He got took!
> >
> > I would be looking for the ***@#$% that sold it to me with a base ball
> > bat at least.
> >
> > How do people live with themselves after that kind of a rip off?
> >
> > No oil pressure and leaky seals. Rebuilt my ***. Repainted maybe.
> >
> > The engine I retired still had 12 to 15 psi at it's hottest idle and the
> > 'used' one I put in has 20 - 25 psi at it's hottest idle.
> >
> > Do you think maybe the oil pump is toast so the oil is just full of gas
> > killing the pressure? Could he get that lucky?
> >
> > Mike
> >
> > "L.W.(ßill) ------ III" wrote:
> >>
> >> http://85cj7.blogspot.com/2004_06_01_85cj7_archive.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Mike Romain wrote:
> >> >
> >> > Ouch, I hope you are mistaken about that rebuild Bill....
> >> >
> >> > Mike
> >> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > 88 Cherokee 235 BFG AT's
re-turned crank in it.
Unfortunately a new top end will fast destroy an old crank and bearing
set.
When I saw miss matched parts, I would have run away screaming...
FAST!!!!!
That means someone totally jury rigged an engine so it would run good
enough to sell the sucker to a sucker.
My baseball bat comment still stands. It sounds like you got badly
ripped off sorry to hear....
Mike
HomeBrewer wrote:
>
> I had my mechanic tear it down after I got it. It has new pistons, rings,
> cam etc, just like the receipts that came with it said, but valves were
> mismatched. I had to have the valves, guides and springs replaced, but
> internally it was good. I'll admit I spent too much on this small v8, I
> should have went with a 401 or 350 sb for the $. It dyno'd at 210 hp.
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:424D5390.AE3E7AD3@sympatico.ca...
> > Man oh man I sure hate to see such bad rip offs... He got took!
> >
> > I would be looking for the ***@#$% that sold it to me with a base ball
> > bat at least.
> >
> > How do people live with themselves after that kind of a rip off?
> >
> > No oil pressure and leaky seals. Rebuilt my ***. Repainted maybe.
> >
> > The engine I retired still had 12 to 15 psi at it's hottest idle and the
> > 'used' one I put in has 20 - 25 psi at it's hottest idle.
> >
> > Do you think maybe the oil pump is toast so the oil is just full of gas
> > killing the pressure? Could he get that lucky?
> >
> > Mike
> >
> > "L.W.(ßill) ------ III" wrote:
> >>
> >> http://85cj7.blogspot.com/2004_06_01_85cj7_archive.html
> >> God Bless America, ßill O|||||||O
> >> mailto:-------------------- http://www.----------.com/
> >>
> >> Mike Romain wrote:
> >> >
> >> > Ouch, I hope you are mistaken about that rebuild Bill....
> >> >
> >> > Mike
> >> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >> > 88 Cherokee 235 BFG AT's
04-02-2005, 08:46 AM
#44
Guest
Posts: n/a
Re: rear seal leak
My 'new' engine is a bone stock 1978 with low miles one someone sold
me. It still has double your oil pressure at idle....
Just keep a close ear out for the knock. When it starts you 'might' be
able to open up the bottom pan and just slip some bearings in to jury
rig it to run a little while longer if you catch it quick.
Mike
HomeBrewer wrote:
>
> > How many miles on the engine?
> 500 now
>
> > The book calls for 10 psi per 1000 rpm, so your hot idle isn't too far
> > out. If it was too low, the valve train would start to get noisy after
> > idling for a while.
>
> It has no unusual noice at all, and plenty of power. It idles at ~7-800 and
> psi is above 10 at hot idle. I posted 5-10 psi, but after rechecking the
> gauge it's above 10 psi at it's lowest.
>
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > HomeBrewer wrote:
> >>
> >> would a leaking rear seal cause low oil pressure at idle when warm? Jeep
> >> in
> >> question has 60 psi cold - then drops to 5-10 at idle after it warms up.
> >> new
> >> mechanical autometer guage too.
> >>
> >> --
> >> HomeBrewer
me. It still has double your oil pressure at idle....
Just keep a close ear out for the knock. When it starts you 'might' be
able to open up the bottom pan and just slip some bearings in to jury
rig it to run a little while longer if you catch it quick.
Mike
HomeBrewer wrote:
>
> > How many miles on the engine?
> 500 now
>
> > The book calls for 10 psi per 1000 rpm, so your hot idle isn't too far
> > out. If it was too low, the valve train would start to get noisy after
> > idling for a while.
>
> It has no unusual noice at all, and plenty of power. It idles at ~7-800 and
> psi is above 10 at hot idle. I posted 5-10 psi, but after rechecking the
> gauge it's above 10 psi at it's lowest.
>
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > HomeBrewer wrote:
> >>
> >> would a leaking rear seal cause low oil pressure at idle when warm? Jeep
> >> in
> >> question has 60 psi cold - then drops to 5-10 at idle after it warms up.
> >> new
> >> mechanical autometer guage too.
> >>
> >> --
> >> HomeBrewer
04-02-2005, 08:46 AM
#45
Guest
Posts: n/a
Re: rear seal leak
My 'new' engine is a bone stock 1978 with low miles one someone sold
me. It still has double your oil pressure at idle....
Just keep a close ear out for the knock. When it starts you 'might' be
able to open up the bottom pan and just slip some bearings in to jury
rig it to run a little while longer if you catch it quick.
Mike
HomeBrewer wrote:
>
> > How many miles on the engine?
> 500 now
>
> > The book calls for 10 psi per 1000 rpm, so your hot idle isn't too far
> > out. If it was too low, the valve train would start to get noisy after
> > idling for a while.
>
> It has no unusual noice at all, and plenty of power. It idles at ~7-800 and
> psi is above 10 at hot idle. I posted 5-10 psi, but after rechecking the
> gauge it's above 10 psi at it's lowest.
>
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > HomeBrewer wrote:
> >>
> >> would a leaking rear seal cause low oil pressure at idle when warm? Jeep
> >> in
> >> question has 60 psi cold - then drops to 5-10 at idle after it warms up.
> >> new
> >> mechanical autometer guage too.
> >>
> >> --
> >> HomeBrewer
me. It still has double your oil pressure at idle....
Just keep a close ear out for the knock. When it starts you 'might' be
able to open up the bottom pan and just slip some bearings in to jury
rig it to run a little while longer if you catch it quick.
Mike
HomeBrewer wrote:
>
> > How many miles on the engine?
> 500 now
>
> > The book calls for 10 psi per 1000 rpm, so your hot idle isn't too far
> > out. If it was too low, the valve train would start to get noisy after
> > idling for a while.
>
> It has no unusual noice at all, and plenty of power. It idles at ~7-800 and
> psi is above 10 at hot idle. I posted 5-10 psi, but after rechecking the
> gauge it's above 10 psi at it's lowest.
>
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > HomeBrewer wrote:
> >>
> >> would a leaking rear seal cause low oil pressure at idle when warm? Jeep
> >> in
> >> question has 60 psi cold - then drops to 5-10 at idle after it warms up.
> >> new
> >> mechanical autometer guage too.
> >>
> >> --
> >> HomeBrewer
04-02-2005, 08:46 AM
#46
Guest
Posts: n/a
Re: rear seal leak
My 'new' engine is a bone stock 1978 with low miles one someone sold
me. It still has double your oil pressure at idle....
Just keep a close ear out for the knock. When it starts you 'might' be
able to open up the bottom pan and just slip some bearings in to jury
rig it to run a little while longer if you catch it quick.
Mike
HomeBrewer wrote:
>
> > How many miles on the engine?
> 500 now
>
> > The book calls for 10 psi per 1000 rpm, so your hot idle isn't too far
> > out. If it was too low, the valve train would start to get noisy after
> > idling for a while.
>
> It has no unusual noice at all, and plenty of power. It idles at ~7-800 and
> psi is above 10 at hot idle. I posted 5-10 psi, but after rechecking the
> gauge it's above 10 psi at it's lowest.
>
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > HomeBrewer wrote:
> >>
> >> would a leaking rear seal cause low oil pressure at idle when warm? Jeep
> >> in
> >> question has 60 psi cold - then drops to 5-10 at idle after it warms up.
> >> new
> >> mechanical autometer guage too.
> >>
> >> --
> >> HomeBrewer
me. It still has double your oil pressure at idle....
Just keep a close ear out for the knock. When it starts you 'might' be
able to open up the bottom pan and just slip some bearings in to jury
rig it to run a little while longer if you catch it quick.
Mike
HomeBrewer wrote:
>
> > How many miles on the engine?
> 500 now
>
> > The book calls for 10 psi per 1000 rpm, so your hot idle isn't too far
> > out. If it was too low, the valve train would start to get noisy after
> > idling for a while.
>
> It has no unusual noice at all, and plenty of power. It idles at ~7-800 and
> psi is above 10 at hot idle. I posted 5-10 psi, but after rechecking the
> gauge it's above 10 psi at it's lowest.
>
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > HomeBrewer wrote:
> >>
> >> would a leaking rear seal cause low oil pressure at idle when warm? Jeep
> >> in
> >> question has 60 psi cold - then drops to 5-10 at idle after it warms up.
> >> new
> >> mechanical autometer guage too.
> >>
> >> --
> >> HomeBrewer
04-02-2005, 11:36 AM
#47
Guest
Posts: n/a
Re: rear seal leak
> You 'really' should have put a new set of main bearings and maybe a
> re-turned crank in it.
It has new main bearings from this kit:
http://store.summitracing.com/defaul...=egnsearch.asp
I don't know if the crank was turned or not, but there is a $330 machine
shop receipt that is somwhat unreadable, but does say crankshaft
something....
--
> re-turned crank in it.
It has new main bearings from this kit:
http://store.summitracing.com/defaul...=egnsearch.asp
I don't know if the crank was turned or not, but there is a $330 machine
shop receipt that is somwhat unreadable, but does say crankshaft
something....
--
04-02-2005, 11:36 AM
#48
Guest
Posts: n/a
Re: rear seal leak
> You 'really' should have put a new set of main bearings and maybe a
> re-turned crank in it.
It has new main bearings from this kit:
http://store.summitracing.com/defaul...=egnsearch.asp
I don't know if the crank was turned or not, but there is a $330 machine
shop receipt that is somwhat unreadable, but does say crankshaft
something....
--
> re-turned crank in it.
It has new main bearings from this kit:
http://store.summitracing.com/defaul...=egnsearch.asp
I don't know if the crank was turned or not, but there is a $330 machine
shop receipt that is somwhat unreadable, but does say crankshaft
something....
--
04-02-2005, 11:36 AM
#49
Guest
Posts: n/a
Re: rear seal leak
> You 'really' should have put a new set of main bearings and maybe a
> re-turned crank in it.
It has new main bearings from this kit:
http://store.summitracing.com/defaul...=egnsearch.asp
I don't know if the crank was turned or not, but there is a $330 machine
shop receipt that is somwhat unreadable, but does say crankshaft
something....
--
> re-turned crank in it.
It has new main bearings from this kit:
http://store.summitracing.com/defaul...=egnsearch.asp
I don't know if the crank was turned or not, but there is a $330 machine
shop receipt that is somwhat unreadable, but does say crankshaft
something....
--
04-08-2005, 09:39 PM
#50
Guest
Posts: n/a
Re: rear seal leak
> That's still way too low, something wrong! A V8 by any manufacture
> should never be less than forty pounds as we see in these mechanic's
> guide lines: http://www.----------.com/amchpchart.jpg
I found the problem. I removed the pan to replace the rear seal and found
the oil pickup screen clogged with excess rtv that came from the oil pan or
somewhere. There was also tons of rtv behind the original rear main seal
whic deformed the seal and caused the leak. After cleaning the pickup
screen, replacing the main bearings and rear main I now have 50-55 psi cold
and 30 psi hot idle.
> should never be less than forty pounds as we see in these mechanic's
> guide lines: http://www.----------.com/amchpchart.jpg
I found the problem. I removed the pan to replace the rear seal and found
the oil pickup screen clogged with excess rtv that came from the oil pan or
somewhere. There was also tons of rtv behind the original rear main seal
whic deformed the seal and caused the leak. After cleaning the pickup
screen, replacing the main bearings and rear main I now have 50-55 psi cold
and 30 psi hot idle.