[JOHNNYCOBRA]

Thanks for quick response/
I pulled th engine because of this problem. it's now at the short block level and i've pulled 2 pistons looking for problems. Ring gap etc..

Theres no flywheel attached now. and i've pulled the front timing cover to check for problems or interference., but found none
The pushrods and rockers were removed to relive pressure.


I'll try to release the pressure on the rear main bearing and see what happens.

However when the piston/ring assy is removed from the crank
with the piston in the bore it appears really tight when moved in the bore by hand. rechecked the piston to bore clearance but it is right on at .0020

why would the rings make the fit so tight? I even checked the ring depth in the piston grooves?

Sooo... I guess i'll remove all the pistons and see if the crank rotates freely (should spin like a top with no pistons.

Johnny