Posted by jeff nwoh on December 19, 2015 at 11:08:31 from (70.208.235.171):
Ended up being the camshaft journals that were losing the most oil. Couldn't really verify it with air pressure in the oil system so I rigged up a way to push some oil into the motor. Didn't see much coming out of rods or mains, but it sure came down through the cyl head drain holes.
I replaced one cam with a better used one from a junk engine. Managed to hold the cam gear up with a couple screwdrivers wedged into it to keep tension on the chain as I didn't want to pull the timing cover.
There aren't any cam bearings in that engine so the caps were somewhat scored and worn like the cam. I cleaned the worst with some 400 grit and milled a couple thousandths off the caps to tighten them up somewhat. Not ideal, but better than replacing the head.
Holding 13-14 psi at hot idle now. I figure after I do the other cam I may get 20 or so. Unfortunately, the other cam gear has no holes in it so I am still stewing on how to hold it up while I swap cams.
Thanks for the input. Just wanted to let you all know what I found.
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