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Stuck Engines

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Mark Forseth

10-11-2002 06:00:19




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I have a 1937 Case CC tractor with a stuck engine. The tractor has been sitting for a long time as a project that was never finshed. The stuck engine was NOT caused by a mechanical failure. What it the best way to free it up?

Thanks
Mark F




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Gary

10-12-2002 04:24:48




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 Re: Stuck Engines in reply to Mark Forseth, 10-11-2002 06:00:19  
you know you might think I do not have it all upstairs. I was in the same boat what caused mine to seize (rust) so thinking I am this lab tech I heat up vegatable oil very hot and pour on top of piston let it cool. worked crank nothing happened then I boiled water poured that on top let it sit then used my propane torch to dry out carefully now.I noticied the heat and water caused the steam around the rings. then tried crank again it moved. I was so darn happy! hey when you here it all in the situation your in you will try anything. good luck!!!!!

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OldFarmBoy Jim

10-11-2002 21:12:38




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 Re: Stuck Engines in reply to Mark Forseth, 10-11-2002 06:00:19  
I just freed up a David Brown 3 cyl diesel. It helps if you can determine why it's stuck. You don't want to make matters worse by causing more damage unsticking. I agree, don't pull it and pop the clutch, too easy to cause serious damage. Not familiar with your engine, but you might try a few of these ideas.
1-remove the oil pan and visually inspect the bottom end for loose,bent,broken, or thrown rods. They don't always come through the block .
2-remove the timing gear cover and check if the gears are unmeshed.
3-pull the starter out and check the ring and drive gear teeth for signs of jamming.
4-remove the spark plugs and pour 2 oz. of your favorite unstick liquid (I'd try WD-40 first) into each cyl one at a time. Notice from the bottom end which cyls. hold the fliud and which ones let it gush out.(Hole in piston, broken rings,etc). Wait for a couple of hours
5-put a socket and long breaker bar on the crankshaft pulley nut. Transmission in nuetral and gently but firmly try to turn the engine backward maybe 1/8 turn or so, then forward. If the nut loosens, you'll only have one direction to turn.
6-at this point if it's not unstuck, save your self further damage and lots of money,remove the head. You'll figure it out from there, so good luck. Jim

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Crispin

10-11-2002 13:21:49




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 Re: Stuck Engines in reply to Mark Forseth, 10-11-2002 06:00:19  
Just went through this with a '52 SC. Tried everything! Finally removed the head and tried everything again. Nothing! Then I shaped a maple log into the bore size with the end real flat and square. Gently "tapped" with a 5 lb. sledge (Lumpy). It moved. Left the crank in, pushed the pistons out the top. Sent the head out ($700). Bead honed the cylinders. New rings. Rebushed the top end of the rods (also sent out). Rebuilt the carb. Never even checked the timing. Put it back togather and it started first time over. Hadn't run in 25 years.

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ff316

10-11-2002 10:21:29




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 Re: Stuck Engines in reply to Mark Forseth, 10-11-2002 06:00:19  
People have used everything from Kerosene to Marvel Mystery Oil to ATF to good ol' water (the universal solvent). It seems the best thing to use is patience, try to refrain from the clutch popping trick, it's a good way to break stuff. Good luck! Fireman



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C. Amick

10-11-2002 09:21:30




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 Re: Stuck Engines in reply to Mark Forseth, 10-11-2002 06:00:19  
Go to the article archives on this web site. There are some good articles. One guy mixes auto trans. fluid, Marvel Mystery oil and kerosene to freee stuck engines. If the valves are stuck, do not turn the engine or you will bend the push rods. Be patient and let the oil do its work.



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Zach

10-12-2002 20:53:04




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 Re: Re: Stuck Engines in reply to C. Amick, 10-11-2002 09:21:30  
I heard that if you use that transfomer oil its soo thin that if you get it on your feet it will be to your head at the end of the day. I have used PB Blaster on a tiller motor sprayed it for 2 days and it broke lose.



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Gary

10-13-2002 06:19:02




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 Re: Re: Re: Stuck Engines in reply to Zach, 10-12-2002 20:53:04  
what is or where do you get this pb blaster? also you said transformer oil you mean like in trans oil in a utility distribution sounds like a plan!thanks



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Zach

10-13-2002 13:01:59




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 Re: Re: Re: Re: Stuck Engines in reply to Gary, 10-13-2002 06:19:02  
you can get pb blaster in wal-mart. just crawl up the eletric pole to the transformer and open it and get some from there they will never know. lol just kidding, it might be a shocking experience.



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Jeb Mccranie

10-14-2002 14:13:37




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 Re: Re: Re: Re: Re: Stuck Engines in reply to Zach, 10-13-2002 13:01:59  
I can get you some transformer oil. My dad is an electrician. Stuff is so thin you can put in the radiator and it will cool the engine better than antifreeze. would'nt try it though.



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