Posted by Nebraska Kirk on July 17, 2013 at 17:54:04 from (207.91.4.159):
In Reply to: WD9 crusted pistons posted by Wheaty on July 17, 2013 at 09:15:17:
First of all I would clean the cylinder walls above the pistons, use a wire wheel to clean up the rust and then use a cylinder hone and hone the cylinders some so that they are smooth. The pistons have to come out the top of the engine, so unless you plan on taking the engine out of the tractor, you will have to crawl underneath. Use a long piece of solid shaft and a big hammer and drive the piston out the top.
If you are taking the engine out, then the best way would be to strip it down to just the block, remove the crankshaft and then place the block upside down in a press. Lay a semicircle piece of steel in the big end of the rod and then press against it.
With either of these methods, the sleeve is likely to come out with the piston, it just depends on how tight the piston is stuck. Once removed, the piston can be pressed out of the sleeve. If you are not saving the sleeves, just cut them off the piston.
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