Posted by martin reece on November 24, 2019 at 18:06:15 from (142.183.252.176):
I bought this tractor with coolant bubbling out of the radiator. I figured a head gasket. Did a compression test. #1 95, #2 95 #3 110. Low compression. Did a leak down test and had air coming out the valve guides. Adjusted the tappets. .015 for intake and .018 for exhaust. Redid the leak test and same thing. Bad rings I figure. Removed the head and head gasket looks great feasted for flatness and can’t get a .002” feeler gauge any where. Same with top of block. Cylinders measure 4.205 to 4.215 at different locations. My questions are What would you do? Bore and sleeve with standard pistons? Bore with over sized pistons Put new rings? a head gasket lap the valves and button it up?. I read something about these engines having a cavitation problem in the coolant passages and boring may cause a leak down the road leading to hydro lock. That’s why I was going to sleeve it but it’s a lot more money After thinking it was only a head gasket Lol my making a easy buck flew out the window Any advice is appreciated Cheers Martin
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Today's Featured Article - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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