Listen to the noise at idle, go to the carb side and move the governor to carb rod a little, (enough to make it change speeds a fer hundred RPM, not much. Listen to that knock, if it changes or goes away irregularly, and then comes back, it could be a wrist pin. I would not worry about wrist pin noise, engines can live for many years with a noisy wrist pin. If the noise stays consistant, and seems deep in the engine, Living with it might be OK. Keep tabs on the oil pressure, If the needle fluctuates radically at idle, I would probably remove the pan and check bearing clearances. If the pressure is OK, just keep an ear to the noise, and if it progersses, or changes, I would suggest a teardown sooner than later, as expenses mount as connecting rods find daylight. Jim
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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