GOOD INFO. Craigthreetwos said:Oil feed holes go outboard towards the exhaust ports. Did you replace the cam bearings yourself? Are you aware of the oil feed hole in the bearing has to line up with the passage in the journal? Is the engine running when you are looking for this or manually turned over with breaker bar and oil pump priming shaft? If priming, the engine has to turn over to feed the heads,(it's a timed oil supply). Did you use the correct LA head gaskets and NOT Magnum head gaskets which feed the oil through the pushrods?
Sorry to hear it man. But hey, at least you didnt install it yet?(the engine in the vehicle), and smoke out the upper valvetrain! BTW, now's the time to put in a bigger camshaft!Lunch Bucket said:I appreciate all the help but we've figured out the problem. I replaced the camshaft and the new camshaft doesn't have oil holes in the in the 2nd and 4th spots where the camshaft rides on the cam bearings, which causes the motor to get no oil to the rockers and rocker shaft. Thanks.
Did you re-build this engine? If so did you or whomever did it replace the stepped oil galley plug in the rear of the block next to the oil filter inlet? Did you replace or remove any plugs at the front of the timing chain area, specifically behind it? In other words did you check all stepped or screw in oil galley plugs to ensure the system is 'closed' besides main and rod bearing clearances being to much this should have a pressure of 25- 30 PSI at idle and at least 40-50 psi at 3000 RPM's. A High volume pump will be even more than this especially at idle. Another thing, are you using the same pushrods and lifters as before? As a rule of thumb you should have 10 psi for evry 1000 rpm;s you are at the minimum now! You have an internal leak somewhere inside.Lunch Bucket said:The Van that I put the 89 5.2 in is TBI. We've gotten past the oiling problem. Now we've got a problem with the oil pressure. With 10W-40 the motor is hot and at idle it is only putting out only 5 PSI. When the motor is at 3000 RPM it's at 30 PSI. What should the oil pressure be at idle? What should it be at 3000 RPM? This is with a new oil pump, all new bearings.