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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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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