Posted by john d on December 28, 2008 at 16:05:58 from (69.130.165.116):
In Reply to: Farmall M h.p. posted by taba on December 28, 2008 at 13:29:55:
The M was about 38 hp when it left the factory. Most of them have been overhauled multiple times by now, and very few escaped the thin-wall sleeves with oversize pistons when rebuilt. Depending on the sleeve-piston combination and any other tricks applied to it, the hp can even reach into the 50-52 hp range.
Ditto what others have said about the fan belt. Take a small wire brush and CLEAN the threads on the front of the pulley hub. Penetrating oil, even a spray can of carb cleaner will help. When the nut and setscrew have been removed, turn the hole to the top side and fill it with penetraing oil. Let it set for an hour or so, then TAP the pulley boss with a long punch and hammer. Once it moves, tap it in the other direction, and apply more oil. Eventually it will spin freely with your hand, but not until the years of accumulated dust are out of the threads. Resist the urge to clobber it out of frustration, as you'll crack it. When you replace the belt, it does not have to be very tight to work effectively.
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