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Restoration & Repair Tips Board

Freeing up an engine

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Eric Hosette

08-21-2003 13:30:25




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I just purchased at '37 Farmall F-20 and the engine is stuck. I have never worked with an engine of that age that was stuck and was wondering if anyone had some tips as what to do to get it running again. Any information is greatly appreciated




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rich

10-09-2003 21:47:02




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 Re: Freeing up an engine in reply to Eric Hosette, 08-21-2003 13:30:25  
try turpintine Ive try all the other stuff and it worked but then I was told to use turpintine and it works fast and very very good I had an allis that was stuck and put it in and in less then 2 hours it was free and it now purrs like a kitten and doesn't use oil either



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JMS/MN

08-23-2003 11:15:03




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 Re: Freeing up an engine in reply to Eric Hosette, 08-21-2003 13:30:25  
Just did a 37 WC in similar condition. If soaking with various penetrants does not work, you need to push the pistons out. Sometimes they will free up if you shape a 4x4 to fit the cylinder, and whack the top of it with a big hammer. Problem is, if the crank is still in place you are trying to move all four pistons at once by hitting just one. You can leave the crank in and push up from underneath with a jack and shaft- be sure to put the shaft against the pin boss, not the piston head. If the tractor front comes off the ground, whack it with a post maul- piston might come free. Otherwise, hold down the front end with some weight, and jack the piston out. Mine was tight- skidloader bucket on the front end, raised right up off the floor, until I filled the bucket with sand- stayed down and the piston came loose.

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Jailkeeper

08-21-2003 20:57:50




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 Re: Freeing up an engine in reply to Eric Hosette, 08-21-2003 13:30:25  
You'll get a lot of responses to this. Here's my opinion.

It will really depend on how badly stuck the engine is. If it was still running when parked and it's just rusted itself together, you've got a good chance of breaking it loose.

If you know the engine doesn't have major problems like a thrown rod or some other mechanical problem causing it to be stuck, you can take the spark plugs out and pour in some kerosene and PB Blaster or your favorite penetrating oil. Let it sit a day or so then try cranking the motor over by hand.

If it's really bad, you'll be looking at pulling the head off and may have to rebuild the engine. Hopefully it won't be that bad though. Good luck and keep us posted!!

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rob nickel

09-27-2003 03:45:24




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 Re: Re: Freeing up an engine in reply to Jailkeeper, 08-21-2003 20:57:50  
Maybe not the most scientific method but my Dad would shape a 4x4 post to the right size and then gently persuade the piston to come loose by pounding on the post with the back of his backhoe bucket. Either the thing will turn or you'll have even more trouble by doing it this way, so it's up to you? And not everybody has a backhoe handy on the farm I realize? Dad always did though and he used it so often he said it was by far the most usefull tool he owned.

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Jeff B.

11-05-2003 18:06:38




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 Re: Re: Re: Freeing up an engine in reply to rob nickel, 09-27-2003 03:45:24  
If the Tractor has not been frozen for long it can be broke free buy rocking it back and forth with two people on the back wheels in a low gear



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Dougc44

07-18-2004 17:43:38




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 Re: Re: Re: Re: Freeing up an engine in reply to Jeff B., 11-05-2003 18:06:38  
I just freed up a Farmall C. I tryed everything and nothing worked. I finally filled each cylinder with white vinegar. I left it for a week and sucked it out, pured in another load and left it for another week. During the third week I noticed the vinegar begining to drip out the crankcase drain. I began working the flywheel back and forth with a bar against the ring gear teeth. While reversing the engine it broke loose. I immediately sucked out vinegar and put in PB Blaster. I continued to move the crank and had the engine turning smoothly in a few minutes. It runs fine now.

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