I agree, in this case the guides are not in a location that fosters oil loss. They could be worn, but certainly no a cause of blow by. If you pull the tappet cover as a first step, the simple act of using a little side to side in and toward pressure would show slop. The oil mist is enough to lube the guides, but not enough to flood the intake with oil to burn. If compression is uniforn, and above 80psi, I would make sure it is not loosing coolant, and probably run it for at least 25 hours or so to see if it changes blowby volume. If no change, and oil is consumed, probably rings. If more than .005" taper in the bore, then cylinders/pistons need service. Jim
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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