What could be causing this oil leak? 1988 4.0 6 4x4 136,000

[fiddlermj]

So i put new lifters, rods, and rockers in 4.0 6 4x4 1988 comanche and now…. After everything put back together I'm blowing oil but can't figure out where. Its under driver side of engine … all over side wall and just everywhere. 

[fiddlermj]

FYI- i found its all coming out the oil cap…. When I take oil cap off…. It doesnt cheech out on me. Just…. Pfffff oil everywhere.

[pizzaman09]

Eh, check your air filter, could be a bad PVC, the big hose coming from the valve cover to the intake.

[fiddlermj]

You were right

[pizzaman09]

Glad to help!  Luckily an easy fix.

[fiddlermj]

Ok new main bearings, rings, rod bearings, rods, lifters, rockers…new pvc ? Thingy…. Still blowing oil alot. 

[pizzaman09]

So you are saying you did new piston rings?

How about valve stem seals?

[fiddlermj]

I have not done piston rings or valve stem seals. Aggravatingly, in the back of my mind, i feel like thats coming. But compression is great all across 127-130. Which had me thinking rings were good. I take oil cap off and no suction or air coming from oil cap. (Which is where the oil is also coming from). I did the valve cover mod. I still have a knock/tick thing which after everything i have done sounds like maybe a  wrist pin. 🤷🏻‍♀️. Cause no skirts or anything in pan. Does the oil pump have pressure or/is supposed to be regulated? I will say oil shoots out like geysers outta of lifters/rockers. I'm running 15w40 diesel oil. Wondering should i run 10w30 now since i have replaced a bunch of stuff