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Farmall & IHC Tractors Discussion Forum
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stuck M piston frustration

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sccwells

05-11-2006 20:40:46




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I took the advice of a few of you guys and removed the head and hit upwards with a steel rod. Unfortunately, I have met with no progress. I decided to drill numerous holes in the top of the piston and with a chisel basically split the piston. However, the piston refuses to budge. Any suggestions? Was in unwise to split the piston in half? Should I do the same in the opposite direction with the expectation that the piston will break apart because it has no more structural integrity? I'm new to this kinda thing and hoping I'm not making the problem worse. I intend on rebuilding the top and bottom end. Would it be more advisiable to split the tractor and have the pistons pressed out? Help please!

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GordoSD

05-12-2006 10:56:15




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 Re: stuck M piston frustration in reply to sccwells, 05-11-2006 20:40:46  
Correct to forget about the piston, you want to pull the sleeves. Just drill one 7/8 hole in each piston, and use them as the "pucks" to pull the sleeves and pistons out together. Make your own puller from allthread, some wood or metal blocks on top outside the sleeves.Screw em out!

gw



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hunting4junk

05-12-2006 09:13:13




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 Re: stuck M piston frustration in reply to sccwells, 05-11-2006 20:40:46  
you're gonna have to break it in half at this point. if you have access to a good pressure washer in the 2500 or better psi range get you some safety goggles and get the nozzle in there as close as you canand go around the piston. may have to do it from both the top and bottom. we've had pretty good luch with this freeing up badly stuck pistons. If not it'll be cleaner when you get it to the press.

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26Red

05-12-2006 07:46:46




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 Re: stuck M piston frustration in reply to sccwells, 05-11-2006 20:40:46  
Ditto on what tractor vet said... pull the motor and disassemble as much as you can- take it to a machine shop and use a hydraulic press... or if you're stubborn like me(tend to learn things the hard way) try hammering with a sledge and 4x4 piece of wood. You'll probably break the wood and then marr up the block in one or two swings...depends on how good your aim is!



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El Toro

05-12-2006 05:45:21




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 Re: stuck M piston frustration in reply to sccwells, 05-11-2006 20:40:46  
You would be better off to pull the engine and use a piece of 2X2 oak to try and drive out the pistons. It's easier than laying on your back
to have the engine down where you can work on it. Don't use a steel rod. You need to heat those pistons and keep soaking them with ATF. Be patient when trying to get these pistons out. Hal



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Nat 2

05-12-2006 05:07:08




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 Re: stuck M piston frustration in reply to sccwells, 05-11-2006 20:40:46  
NOBODY told you to use anything steel to pound out the pistons! Steel is BAD. If the pin slips when you hit it, steel will tear holes in the block that cannot be repaired. Instead of a rebuildable core, you will have a hunk of useless scrap iron.

At this point, you need to concentrate on driving the sleeve out of the engine, not the piston. All that work you're doing on the piston is just a waste of time; you're making holes in the TOP of the piston. The sides are still intact, and firmly rusted to the sides of the sleeves.

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NEsota

05-11-2006 21:30:15




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 Re: stuck M piston frustration in reply to sccwells, 05-11-2006 20:40:46  
I had a stuck piston in an H. From under the tractor, using a piece of oak that would just squeeze by the obstructions and using a 2 or 3 pound hammer the piston and sleeve both came out.



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the tractor vet

05-11-2006 20:47:19




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 Re: stuck M piston frustration in reply to sccwells, 05-11-2006 20:40:46  
When ever i had to remove a stuck piston i did not screw around tryen all sorts of ways i pulled the engine and stripped it down to the running gears of a KADDYDID and either put it the press or set the block up on some good OAK 4x4's and used a good oak 3x3 and at least a 10 # sledge if not that then i would get the neighbor and his man killer 25 # sledges and beat the dog snot out of it something would move even if the sleeve would come with the piston that was a good thing.

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