Oil Pressure Question
10-11-2006, 06:17 PM
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Oil Pressure Question I have a question for you guys. I am attempting to make a LONGGGGG story short. OK...I bought a engine off of a person on this sight. Before I ran the motor I put a MS4 cam, spring, rods ect. on it. The motor has a LS6 ported oil pump and a LS2 timing chain. I get the motor all together and start it up. Oil pressure is at about 5-10 psi at idle and goes to about 20psi on a 4k rpm rev up. I am like WTF...So I go to the chevy dealer. Buy a brand new oil pump. Pull the damn pan back down and decide to take it off. The pickup was alittle clogged but nothing horrible. Clean everything up really nice, put the new oil pump on and get it all back together. Started the engine up again. Once again its at about MAYBE 15 psi at idle and MAYBE 30psi on a 4k rpm rev up. I know thats not enough PSI to feel safe. I dont know what to do. I would say maybe the gauge is bad but I hooked a mechanical gauge up to the car and thats how I know the exact PSI. Can someone please help me out alittle. I am stumped on what I need to do next. All opinions are needed.
THANKS JASON
THANKS JASON
10-11-2006, 06:26 PM
#2
I would say if the pick up tube was clogged maybe itis not cleaned out all the way. you can buy a new on for about $70 at your local chevy dealer. you only 6 psi per 1000 rpm so your not in no real danger but i understand what you mean about feeling safe on a new motor. good luck. hope everythoing turns out ok
10-11-2006, 07:54 PM
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I took the pickup off and brought it to work and completely cleaned the thing out. Its definitly good as new. As far as only 6psi per 1k rpm's. Thats good enough? It kinda scares me. That cant be enough to be safe can it?
10-12-2006, 11:56 AM
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I have nothing to offer, but I would not feel safe with your numbers. I have 60psi at idle cold and about 45-50psi warm with a TSP ported pump. At full throttle it is in the 70+ range.
10-12-2006, 01:12 PM
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No I definitly dont feel safe with the pressure its at. That why I think I am going to pull the motor back out AGAIN unfortunatly and check all the cam and main bearings.