Re: Low Oil Pressure Guesses
 

Pedal.

> Even though you only have eighty thousand on, they may have been
driven
> with the petal to the metal, just trying to keep up with the traffic, so
> your engine looks more like it just completed the Indy five hundred,
switch
> to a 20/50 to squeeze another hundred out of it. Also with the blow by
> caused by the foot to the wood, contaminates would quickly clog the oil
> filter, and limit the oil feeding your engine and getting to the pressure
> gauge, so start changing her by a couple thousand.
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/



--
Posted via a free Usenet account from http://www.teranews.com

Re: Low Oil Pressure Guesses
 

"Spdloader" <askforit@nospam.triad.rr.com> wrote in message
news:4637ad69$0$4692$4c368faf@roadrunner.com...
>
> "Earle Horton" <earle@vascongado.usa> wrote in message
> news:46379b1c$0$31797$a82e2bb9@reader.athenanews.c om...
> > "Spdloader" <askforit@nospam.triad.rr.com> wrote in message
> > news:46378d8c$0$15097$4c368faf@roadrunner.com...
> >>
> >> You did not mention
> >> > if you bought it new or the mileage on it.
> >>
> >>
> >> Um, I did buy it new, and I did mention that the mileage
> >> was 77,000.
> >>
> > Mine's got 90,000+ miles, and it still gets the same oil pressure
> > as it did when new. The symptoms point to bearings.
> >
> > Cheers,
> >
> > Earle
> >
> >
> I'm in denial right now Earle, humor me a bit.
>
I think that the bearings are "select fit" on this model. You can't just
order stock or 0.001" under and call it good. You have to plastigage every
one and select fit the right size to each journal. The journals are
probably scratched too. What did you do to it, so I don't make the same
mistake? Good enough?

Cheers,

Earle

Re: Low Oil Pressure Guesses
 

"Spdloader" <askforit@nospam.triad.rr.com> wrote in message
news:4637ad69$0$4692$4c368faf@roadrunner.com...
>
> "Earle Horton" <earle@vascongado.usa> wrote in message
> news:46379b1c$0$31797$a82e2bb9@reader.athenanews.c om...
> > "Spdloader" <askforit@nospam.triad.rr.com> wrote in message
> > news:46378d8c$0$15097$4c368faf@roadrunner.com...
> >>
> >> You did not mention
> >> > if you bought it new or the mileage on it.
> >>
> >>
> >> Um, I did buy it new, and I did mention that the mileage
> >> was 77,000.
> >>
> > Mine's got 90,000+ miles, and it still gets the same oil pressure
> > as it did when new. The symptoms point to bearings.
> >
> > Cheers,
> >
> > Earle
> >
> >
> I'm in denial right now Earle, humor me a bit.
>
I think that the bearings are "select fit" on this model. You can't just
order stock or 0.001" under and call it good. You have to plastigage every
one and select fit the right size to each journal. The journals are
probably scratched too. What did you do to it, so I don't make the same
mistake? Good enough?

Cheers,

Earle

Re: Low Oil Pressure Guesses
 

"Spdloader" <askforit@nospam.triad.rr.com> wrote in message
news:4637ad69$0$4692$4c368faf@roadrunner.com...
>
> "Earle Horton" <earle@vascongado.usa> wrote in message
> news:46379b1c$0$31797$a82e2bb9@reader.athenanews.c om...
> > "Spdloader" <askforit@nospam.triad.rr.com> wrote in message
> > news:46378d8c$0$15097$4c368faf@roadrunner.com...
> >>
> >> You did not mention
> >> > if you bought it new or the mileage on it.
> >>
> >>
> >> Um, I did buy it new, and I did mention that the mileage
> >> was 77,000.
> >>
> > Mine's got 90,000+ miles, and it still gets the same oil pressure
> > as it did when new. The symptoms point to bearings.
> >
> > Cheers,
> >
> > Earle
> >
> >
> I'm in denial right now Earle, humor me a bit.
>
I think that the bearings are "select fit" on this model. You can't just
order stock or 0.001" under and call it good. You have to plastigage every
one and select fit the right size to each journal. The journals are
probably scratched too. What did you do to it, so I don't make the same
mistake? Good enough?

Cheers,

Earle

Re: Low Oil Pressure Guesses
 

"Spdloader" <askforit@nospam.triad.rr.com> wrote in message
news:4637ad69$0$4692$4c368faf@roadrunner.com...
>
> "Earle Horton" <earle@vascongado.usa> wrote in message
> news:46379b1c$0$31797$a82e2bb9@reader.athenanews.c om...
> > "Spdloader" <askforit@nospam.triad.rr.com> wrote in message
> > news:46378d8c$0$15097$4c368faf@roadrunner.com...
> >>
> >> You did not mention
> >> > if you bought it new or the mileage on it.
> >>
> >>
> >> Um, I did buy it new, and I did mention that the mileage
> >> was 77,000.
> >>
> > Mine's got 90,000+ miles, and it still gets the same oil pressure
> > as it did when new. The symptoms point to bearings.
> >
> > Cheers,
> >
> > Earle
> >
> >
> I'm in denial right now Earle, humor me a bit.
>
I think that the bearings are "select fit" on this model. You can't just
order stock or 0.001" under and call it good. You have to plastigage every
one and select fit the right size to each journal. The journals are
probably scratched too. What did you do to it, so I don't make the same
mistake? Good enough?

Cheers,

Earle

Re: Low Oil Pressure Guesses
 

Spdloader wrote:
> Wife's '97 TJ, 2.5eng., 77,000 miles.
>
> Never been under water, or overheated.
>
> Oil always changed at 3500mile intervals.
>
> Problem: It has low oil pressure after warm up.
>
> Cold (ambient, 65deg.) pressure is 45psi. After warm up, it cruises
> around 25-30psi then it idles down to "0", and all the check gauges
> lights all come on. Pressure confirmed within a psi or two with a
> "live" gauge.

Just a thought, but could the overpressure bypass spring be b0rked
and sticking only when cold just to open up when warm?

--
DougW

Re: Low Oil Pressure Guesses
 

Spdloader wrote:
> Wife's '97 TJ, 2.5eng., 77,000 miles.
>
> Never been under water, or overheated.
>
> Oil always changed at 3500mile intervals.
>
> Problem: It has low oil pressure after warm up.
>
> Cold (ambient, 65deg.) pressure is 45psi. After warm up, it cruises
> around 25-30psi then it idles down to "0", and all the check gauges
> lights all come on. Pressure confirmed within a psi or two with a
> "live" gauge.

Just a thought, but could the overpressure bypass spring be b0rked
and sticking only when cold just to open up when warm?

--
DougW

Re: Low Oil Pressure Guesses
 

Spdloader wrote:
> Wife's '97 TJ, 2.5eng., 77,000 miles.
>
> Never been under water, or overheated.
>
> Oil always changed at 3500mile intervals.
>
> Problem: It has low oil pressure after warm up.
>
> Cold (ambient, 65deg.) pressure is 45psi. After warm up, it cruises
> around 25-30psi then it idles down to "0", and all the check gauges
> lights all come on. Pressure confirmed within a psi or two with a
> "live" gauge.

Just a thought, but could the overpressure bypass spring be b0rked
and sticking only when cold just to open up when warm?

--
DougW

Re: Low Oil Pressure Guesses
 

Spdloader wrote:
> Wife's '97 TJ, 2.5eng., 77,000 miles.
>
> Never been under water, or overheated.
>
> Oil always changed at 3500mile intervals.
>
> Problem: It has low oil pressure after warm up.
>
> Cold (ambient, 65deg.) pressure is 45psi. After warm up, it cruises
> around 25-30psi then it idles down to "0", and all the check gauges
> lights all come on. Pressure confirmed within a psi or two with a
> "live" gauge.

Just a thought, but could the overpressure bypass spring be b0rked
and sticking only when cold just to open up when warm?

--
DougW

Re: Low Oil Pressure Guesses
 

> Problem: It has low oil pressure after warm up.
>
> Cold (ambient, 65deg.) pressure is 45psi. After warm up, it cruises around
> 25-30psi then it idles down to "0", and all the check gauges lights all come
> on. Pressure confirmed within a psi or two with a "live" gauge.
> Tapping the throttle obviously raises the pressure slightly, and lights go
> off. Running the A/C helps increase the idle slightly, increasing pressure
> slightly.


Does it ever return to normal? The early TJs have always had an
instrument panel problem that sometimes gives erratic oil pressure
readings. Sometimes mine goes down to nearly zero but eventually it
returns to normal.