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 - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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