With both valves closed (TDC compression stroke) with the tractor in High gear, and brakes locked. Air pressure (100psi or so) is put in the spark plug hole, and one listens to hear where the air leaks out. Air cleaner, oil fill hole, exhaust, radiator, etc. (yours will be more than likely from the oil fill hole) It won't tell you if it is a cracked piston, hole in piston, or broken ring. It will just confirm the need to pull the head and get a visual of the piston. It has wet sleeves which are easy to remove. JimN
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Today's Featured Article - Fabrication (Who Me? Make it myself?) - by Chris Pratt. First of all, what are the reasons for not fabricatin your own parts? Most judgements on what should be purchased rather than fabricated stem from: Originality - If the tractor restoration is to be 100% original, it is likely that you should spend the time and money to locate the component in the used or New-old-stock market. Since this can be extremely difficult, you may want to fabricate the item or purchase a modern replacement temporarily, but eventually, you s
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