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AC C pistons are stuck

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Hunter

07-30-2000 15:30:54




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I'm restoring an 1945 C the pistons are stuck i've cleaned the top part of the slevees off with a hone. Then I pulled it in third gear to see if it would break it lose. Any ideas?




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190XTD

08-01-2000 20:03:17




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 Re: AC C pistons are stuck in reply to Hunter, 07-30-2000 15:30:54  
this may be a dumb question, but if you are going to restore the tractor, and the pistons are stuck in the sleeves, why wouldn't you just put new sleeves pistons and rings in it?



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bill

07-31-2000 08:40:01




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 Re: AC C pistons are stuck in reply to Hunter, 07-30-2000 15:30:54  
Here is away to get them free and not have to use a lot of force either. Soak the piston in diesel fuel for a several day, Last one we did let it sit for a week. Than depending upon how much fuel is in there, Soak some up so that there is an inch or two and then take a torch and light it. Let it burn itself out, Piston normally fall right out the bottom. Let cool. it is an open flame so no real high heat, Have seen one time where we too hard piece of wood and gently tapped them out thereafter.

Did that to 4 piston on an IH UD350 diesel motor that did not have the head on it for 20 years and it sat outside

PS anything that has flames have a fire extinguisher of the proper type and dont burn the place down.

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Dick L

07-30-2000 20:23:19




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 Re: AC C pistons are stuck in reply to Hunter, 07-30-2000 15:30:54  

If you have the radiator off you can put a wrecking bar across the crank pully and get more torque than you can pulling it. If they are rusted bad I will pull the engine out, turn the engine over and remove the crank. Then I use an oak 2"X 2" block of wood, place it in the bottom of the piston and drive them out one at a time. If the sleeve and all comes out I soak them in diesel fuel a day or so and use a hyd press.

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