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Old 03-16-2006, 09:35 PM
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frozen motor

I bought a tractor that has a frozen motor. The exhaust cap was left off and water got into the cylinder walls. Is there any product out there that I can pour in and let set for some time and maybe loosen the pistons ?
Dan

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Old 03-16-2006, 09:47 PM
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Coke-A-Cola. No, I'm not kidding. Let it soak overnight
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Old 03-16-2006, 09:52 PM
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You all may laugh at this one. But just plain old coke a cola. I didn’t believe it when I was told it would work but after trying on a few stuck engines, I do now! It really does work!
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Old 03-16-2006, 09:54 PM
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Quote:
Originally Posted by TechnTool
Coke-A-Cola. No, I'm not kidding. Let it soak overnight
Ok so I’m not the only one. I feel better now. lol
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Old 03-16-2006, 10:46 PM
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Kroil. Let it soak. Then, rock the rotating assembly back and forth.

You probably should also insure that "frozen" engine isn't from some other source such as a spun bearing, broken crank, etc.
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Old 03-16-2006, 11:27 PM
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Keep All the spark plugs out
Water, Cocoa Cola, Kroil, Marvel Mystery Oil, ETC...
Will Not Compress at all
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Old 03-17-2006, 05:49 AM
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I have seen the coke trick work as well on an old IH Tractor.
Worked like a charm!!!
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Old 03-17-2006, 03:00 PM
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This is the first time I have heard of using Coca-Cola to free an engine but you learn something new every day, its worth a try.

I have freed a number of engines using a variety of products. I have used diesel fuel on quite a few with varied success. The last engine I unstuck was a Ford Escort, I used a mixture of WD40, fuel injection cleaner and brake fluid. Poured it in through the spark plug holes, let it sit for two weeks, put the car in high gear (manual transmission) and rocked it back and forth. My brother has put thousands of miles on this car since.

On a tractor after I soaked the engine I would jack up one of the rear tires, put the transmission in high gear and rock the tire back and forth. Sometimes this process takes a while but after a lot of rocking you should notice that the tire is moving further.

Your success depends upon how badly the engine is seized, it will not work on every engine.

One friend of mine suggested that I adapt the end of a hydraulic hose to fit in the spark plug hole of a stuck WD45 Allis that I had purchased. His theory was that I could use the hydraulic pressure of one of my other tractors to free the engine. I have not tried this method yet but I am going to try it sometime(if you try it soak the engine first and tell me how it worked).
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Old 03-17-2006, 06:57 PM
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I've heard of the hydraulic pressure deal. It seems to me that putting a couple thousand psi in the cylinder is going to break something before the engine frees up.
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