Re: Farmall M trying to get unstuck

Posted by Janicholson on November 25, 2014 at 18:39:45 from (74.60.94.18):

In Reply to: Farmall M trying to get unstuck posted by Eric Allen on November 25, 2014 at 18:20:12:

to isolate the issue, push down the clutch and block it down with a short 2X4 or similar. Now try the pulley. If the pulley now turns freely, we now have isolated the issue to the engine. Rust and debris can get on top of pistons and prevent full rotation. Use a coat hanger wire bent like a hook to "feel" in each cylinder when the piston is up near the top, to see if you can rake out crud. Blowing compressed air may blow the rud into the intake manifold (not good). Looking into the cylinder with a bore scope, or fiber optic will also work to assess the chamber.
There are ledges (squish zones) that become only as thick as the head gasket.
Do not force the engine.
If the engine still turns with the clutch down, and the pulley locks as before, the clutch disk is stuck to the Flywheel (common in a system not used for a long time). If it is in the engine, and nothing seems to get it free, pulling the head may be the only solution. Jim

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