Posted by Steve@Advance on December 07, 2017 at 19:33:00 from (66.169.147.211):
In Reply to: Educated Guess Request posted by pat sublett on December 07, 2017 at 16:52:48:
You're asking for a guess...
Is there excess smoke puffing out the crankcase vent pipe?
If yes, it is probably rings.
If no, it's probably a valve problem.
If valves are suspected, take the valve cover off, check the valve lash clearance, look at the valve springs for broken coils, turn the engine through and watch that the valves are opening. Could be a flat cam or bent pushrod.
If you end up pulling the head, be aware that the cylinder liners just sit in the block, held down by the head. With the head off, they need to be bolted down with a couple of bolts and washers to prevent them from riding up and breaking the seal at the bottom of the block. If any ride up, trash will get under the seal and leak coolant into the oil. Whole nuther can o' worms!
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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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