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Restoration & Repair Tips Board

stuck engine

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Zach Wisen

09-18-2005 09:26:10

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I have a John Deere b that has a stuck engine. I am currently restoring the tractor and I have the head off. I already have one piston off but the other one wont budge,how can i get it out.

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Dan

09-19-2005 11:22:43

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Re: stuck engine in reply to Zach Wisen, 09-18-2005 09:26:10

Patience is your friend here - don't make a bad situation worse. This is what my engine looked like when I pulled the head on my last project tractor (the red is MMO the previous owner poured in to try to unstick the engine before the sell). I used a lot of Kroil penetrating oil and kept re-applying for days along with some light taps on the piston using a oak branch section the same diameter as the piston and a 3 lb. hand sledge. I did not pound it too hard, just 5 or so solid blows on the wood, then put some more Kroil on it and let it sit for awhile. I kept this up for a few days and it started moving. Some have had good luck with white vinegar as well as it dissolves rust.

Its the small battles that make it worthwhile.

Good luck,
Dan

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OLEN

09-19-2005 19:58:18

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Re: stuck engine in reply to Dan, 09-19-2005 11:22:43

DAN,GO TO EVAPO-RUST.COM AND FIND A PRODUCT THAT WILL CLEAN THIS LIKE YOU WON'T BELIEVE . READ TH E SPECS ON IT AND FEEL FREE TO CALL THE COMPANY.GOOD LUCK. I CLEANED MINE WITH IT AND IT'S TOPS

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Weirsdale George

09-19-2005 04:36:16

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Re: stuck engine in reply to Zach Wisen, 09-18-2005 09:26:10

You are probably going to have to bore the cylinders anyway, so I'd disconnect the rod bearing and remove the block. Then you can set the block on its back end, soak the cylinder and piston with penetrating oil and push out the piston with a press.

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09-18-2005 22:58:29

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Re: stuck engine in reply to Zach Wisen, 09-18-2005 09:26:10

fill the cylinder full of drain oil then put a spark plug with zerk fitting welded on it into hole and use a grease gun to pump the piston out with hydraulic force.

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JMS/MN

09-18-2005 20:02:09

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Re: stuck engine in reply to Zach Wisen, 09-18-2005 09:26:10

My 50 was stuck when I got it. Built a bolt-in bracket ahead of the block, 12 ton jack against a steel plate on the piston head..... ...

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Ronny

09-18-2005 18:55:56

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Re: stuck engine in reply to Zach Wisen, 09-18-2005 09:26:10

Zach, try Knocker loose along with alot of patience! I just did one that had been stuck for 20 yrs+, but the head was still on! Good luck!
Ron

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old

09-18-2005 10:22:57

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Re: stuck engine in reply to Zach Wisen, 09-18-2005 09:26:10

Well if the head was still on I'd fill the cylinders with tranny fluid. You might jack up the front end high enough to be able to do the same thing.

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