I'm still thinking at least some of the timing parts have been replaced. I found a good sized chunk of chain guide in the pan that will only fit one spot on one guide. That piece is not missing in my engine.
I did pressurize the oil system with air and oil and didn't see or hear anything coming out of or around the tensioners. I definitely checked after my last post.
As far as I can tell there isn't a visible gasket in there. I looked on rockauto.com and see two styles of tensioner. A plastic one with a molded o ring style gasket and a cast iron with a smooth back which I assume seals metal to metal or maybe a dab of rtv. I've got the cast iron. I can definitely see where that plastic one could cause some problems.
My theory is it had issues before and the chains, guides, and/or tensioners were replaced. The damage was done to the cams and they finally wore to the point it couldn't make oil pressure with hot oil at idle.
Just curious....what would you say would be a "normal" oil pressure at hot idle for this engine?
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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