stuck piston

longear · Apr 27, 2012

I just started tearing down a farmall h. I am having a hard time getting one of the pistons out. any suggestions?

JRSutton · Apr 27, 2012

is it just frozen in place - or is it moving normally and the rings are getting stuck at the wear ridge line?

longear · Apr 27, 2012

after an hour or so of beating on it it moved about an inch. It had water in it.

toymaker 27 · Apr 27, 2012

If you have pulled the crank off it should slide out the bottom, some time I have had to use a bigger hammer and a block of wood.

if removing out the top rust may be behind the rings preventing them from colapsing

longear · Apr 27, 2012

The crank is still in. I guess I'll try grinding some of the sleeve away.

old · Apr 27, 2012

If you can do so safely try this. Fill that cylinder 3/4 of the way full of ATF then add a couple tablespoons of gas to that. Let it sit a few minutes so as to mix it up then light it on fire. Add gas 2 or 3 times after it has stopped burning. Then try to remove that piston after the fluid has cooled to a safe temp. What that does is heats and expands that cylinder and sometimes that with the ATF seeping down the sides of the piston and ring will be enough to free it up. I have free up a few engines using that trick over the years

longear · Apr 28, 2012

I got it out thanks for the replies. I ground the inside of the sleeve and it made it much easier

longear · Apr 28, 2012

I got it out. put the piston down where it started then I ground the sleeve where the rust was

stuck piston

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