Re: Jeep losing oil pressure? Here's why ...
 

oops,

meant 'Usually the bottom end wears out way before the 'cam' bearings.'

Mike

Mike Romain wrote:
>
> That is a strange one....
>
> Did you see an increase when you replaced the crank bearings?
>
> If not, then I would be suspecting something other than bearings.
> Usually the bottom end wears out way before the crank bearings.
>
> Could the pressure bypass valve on the oil filter maybe have blown out?
>
> Is there an oil channel pressure plug on the front of the block under
> the timing cover that maybe fell out?
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> TheWarman wrote:
> >
> > My oil pressure is 20psi at 2000rpm's and up. At idle I get 8psi on a
> > mechanical gauge, but zero on my electrical gauge.
> >
> > I've changed the oil sensor and oil pump, only to discover the reason
> > I lose oil pressure in my 1997 2.5L Jeep Wrangler TJ is because the
> > cam bearings are wearing out. The crank & rod bearings didn't fix the
> > problem, so the only thing left is the cam.
> >
> > So far no good internet posts reveal this as a cause of oil pressure
> > loss in Wranglers, so I'm posting this for information to all those
> > other Jeep owners who have the same problem.
> >
> > Good luck, the cam is not the overhead type! It's buried inside.

Re: Jeep losing oil pressure? Here's why ...
 

oops,

meant 'Usually the bottom end wears out way before the 'cam' bearings.'

Mike

Mike Romain wrote:
>
> That is a strange one....
>
> Did you see an increase when you replaced the crank bearings?
>
> If not, then I would be suspecting something other than bearings.
> Usually the bottom end wears out way before the crank bearings.
>
> Could the pressure bypass valve on the oil filter maybe have blown out?
>
> Is there an oil channel pressure plug on the front of the block under
> the timing cover that maybe fell out?
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> TheWarman wrote:
> >
> > My oil pressure is 20psi at 2000rpm's and up. At idle I get 8psi on a
> > mechanical gauge, but zero on my electrical gauge.
> >
> > I've changed the oil sensor and oil pump, only to discover the reason
> > I lose oil pressure in my 1997 2.5L Jeep Wrangler TJ is because the
> > cam bearings are wearing out. The crank & rod bearings didn't fix the
> > problem, so the only thing left is the cam.
> >
> > So far no good internet posts reveal this as a cause of oil pressure
> > loss in Wranglers, so I'm posting this for information to all those
> > other Jeep owners who have the same problem.
> >
> > Good luck, the cam is not the overhead type! It's buried inside.

Re: Jeep losing oil pressure? Here's why ...
 

oops,

meant 'Usually the bottom end wears out way before the 'cam' bearings.'

Mike

Mike Romain wrote:
>
> That is a strange one....
>
> Did you see an increase when you replaced the crank bearings?
>
> If not, then I would be suspecting something other than bearings.
> Usually the bottom end wears out way before the crank bearings.
>
> Could the pressure bypass valve on the oil filter maybe have blown out?
>
> Is there an oil channel pressure plug on the front of the block under
> the timing cover that maybe fell out?
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> TheWarman wrote:
> >
> > My oil pressure is 20psi at 2000rpm's and up. At idle I get 8psi on a
> > mechanical gauge, but zero on my electrical gauge.
> >
> > I've changed the oil sensor and oil pump, only to discover the reason
> > I lose oil pressure in my 1997 2.5L Jeep Wrangler TJ is because the
> > cam bearings are wearing out. The crank & rod bearings didn't fix the
> > problem, so the only thing left is the cam.
> >
> > So far no good internet posts reveal this as a cause of oil pressure
> > loss in Wranglers, so I'm posting this for information to all those
> > other Jeep owners who have the same problem.
> >
> > Good luck, the cam is not the overhead type! It's buried inside.