OregonRedRam
Junior Member
- Joined
- Jun 10, 2018
- Posts
- 3
- Reaction score
- 0
- Location
- Portland, Or
- Ram Year
- 1995
- Engine
- 5.9 gas magnum
I am re-building a 5.9 magnum gas. Have built engines before and never ran across this. The engine won't start. A compression check of all cylinders varies between 75 and 170. Engine was bored .030 by a NAPA shop. New flat top .030 pistons & rings installed. The decks are level. Cylinder heads are new and flat, not warped. I installed a new cam and lifters. Cam was degree'd and installed straight up. I pulled the timing cover off to check that the timing marks do line up. What am I missing? Is it possible the new rings are not sealing? Can I test this by putting oil in the plug holes as if its a old engine?
Is it possible the new cam is just totally off (comp cam) ? The new heads use the stock pedestal rocker arms so they can't be mis-adjusted, right? If the cam was out of phase, wouldn't the compression still be the same in all cylinders, excpet maybe high or low? WHAT AM i MISSING?
Is it possible the new cam is just totally off (comp cam) ? The new heads use the stock pedestal rocker arms so they can't be mis-adjusted, right? If the cam was out of phase, wouldn't the compression still be the same in all cylinders, excpet maybe high or low? WHAT AM i MISSING?