no oil to top end

mr-tom · June 13th, 2007, 01:05 AM

69 350 lifters started making noise the other day checked the oil pressure i have 60 psi at hi indle goes down to 40 psi at idle push rods are clear any one have any idea what could be the problem

joe_padavano · June 13th, 2007, 10:30 AM

Quote:

Originally Posted by mr-tom

69 350 lifters started making noise the other day checked the oil pressure i have 60 psi at hi indle goes down to 40 psi at idle push rods are clear any one have any idea what could be the problem

Not knowing the internal condition of your motor, one can only guess. The oil pressure tap on the Olds motor is at the end of the lifter gallery, so you'll have at least that pressure feeding the lifters. The pressures you're seeing are normal. The other options are gummed up lifters, worn valvetrain parts, or worn cam.

Oldsmaniac · June 14th, 2007, 12:04 PM

Is it the lifters or the rockers?.....maybe only a worn rocker or 2?.....Oil doesnt squirt out of the pushrods in large amounts....it just sorta dribbles up thru as the RPM increases there is more oil.....at idle there isnt a lot of oil that you will see at the rockers.

mr-tom · June 14th, 2007, 10:41 PM

Quote:

Originally Posted by Oldsmaniac

Is it the lifters or the rockers?.....maybe only a worn rocker or 2?.....Oil doesnt squirt out of the pushrods in large amounts....it just sorta dribbles up thru as the RPM increases there is more oil.....at idle there isnt a lot of oil that you will see at the rockers.

its just one on side just drippels out at idle & hi rpm looks like its hade that problem ever since it was new valve cover on that side looks like new compared to the other side just putting in new lifters and changing the rockers on the side with no oil hopfully it solves the problem rockers are badly worm so im crossing my fingers have a guy comming to buy it on saterday

The_Jeremiah · November 30th, 2008, 05:27 PM

Same thing happened to mine. good psi, but no oil at the pushrods, dont know why its doing this, cam bearing or blockage, cant think of anything else

June 13th, 2007, 01:05 AM	#1 (permalink)
mr-tom Registered User Join Date: Nov 2006 Location: new westminister canada Posts: 35	no oil to top end 69 350 lifters started making noise the other day checked the oil pressure i have 60 psi at hi indle goes down to 40 psi at idle push rods are clear any one have any idea what could be the problem

November 30th, 2008, 05:27 PM	#5 (permalink)
The_Jeremiah Registered User Join Date: Jul 2007 Posts: 294	Same thing happened to mine. good psi, but no oil at the pushrods, dont know why its doing this, cam bearing or blockage, cant think of anything else __________________ 69' Cutlass 4 door. Built 455 inside, grandma's grocery getter outside. Best sleeper in disguise.

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June 14th, 2007, 12:04 PM	#3 (permalink)
Oldsmaniac Registered User Join Date: Oct 2005 Location: NJ Posts: 702	Is it the lifters or the rockers?.....maybe only a worn rocker or 2?.....Oil doesnt squirt out of the pushrods in large amounts....it just sorta dribbles up thru as the RPM increases there is more oil.....at idle there isnt a lot of oil that you will see at the rockers.