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Farmall M engine stuck

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bama mule

08-29-2001 19:00:58




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I have a M that has not been run in about 4 years and the engine is stuck. The tractor has been sitting in the weather for about 8 months with a busted manifold. Any advice would be very helpful on freeing it up.




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ELTON

08-30-2001 21:21:14




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 Re: Farmall M engine stuck in reply to bama mule, 08-29-2001 19:00:58  
I HAD A TD35 THAT HAD SAT FOR ABOUT 7 YEARS AND I WAS ABLE TO GET IT UNSTUCK. THERE WASN'T ANY CYLINDER DAMAGE BUT THE VALVES THAT ARE OPEN WILL RUST ON THE SEAT AND GIVE YOU POOR COMPRESSION. IN OTHER WORDS YOU MAY HAVE TO PULL THE HEAD ANY WAY. THE BUSTED MANIFOLD MAY NOT HELP MATTERS EITHER. BUT WHAT I DID WAS TOO POOR DIESEL AND PENETRATING OIL THRU THE SPARK PLUG HOLES AND DOWN THE EXHAUST PIPE. IF YOU HAVE A HAND CRANK INSTALL IT AND HOOK A COMEALONG TO THE HAND AND APPLY PRESSURE BUT DO NOT OVER TIGHTEN. THE IDEA IS WITH PRESSURE AND THE OIL DOING ITS JOB IT MAY FREEUP BUT THIS WILL TAKE 2-4 WEEKS SO BE PATIENT. KEEP CHECKING THE TIGHTNESS OF YOUR COME-ALONG AND ADD MORE OIL,DIESEL,WHATEVER TO KEEP IT LUBED UP. GOOD LUCK!

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Andy Martin

08-30-2001 09:35:59




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 Re: Farmall M engine stuck in reply to bama mule, 08-29-2001 19:00:58  
Also, chances are good only one clyinder is stuck. Pretty much only one exhaust valve is open at a time, and unless multiple valves are stuck open (like somebody pulling it around trying to start it after sitting many years) or it has a blown head gasket, the water is in only one cylinder. When you pull the plugs look for rust on them. If one is obviously the worst, concentrate on that cylinder. Just put Marvel Mystery Oil in the other three.

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cheg

08-29-2001 20:27:01




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 Re: Farmall M engine stuck in reply to bama mule, 08-29-2001 19:00:58  
I have had good luck using PB Blaster. You can purchase it in a spray can at Carquest or Walmart. It is a catalyst.

The other day I was told to use household ammonia. I have never tried it. Either way, take your time. Pull the spark plugs, spray it in and let it soak for several days.



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Zonie

08-29-2001 20:26:42




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 Re: Farmall M engine stuck in reply to bama mule, 08-29-2001 19:00:58  
I haven't had to unstick a tractor engine yet but I've seen enough posts on this board to give you a starting place.
Try removing the spark plugs and shoot some penetrating oil in each cylinder. I've found PB Blaster works as good or better than anything else I've tried.
leave the sparkplugs out and jack up one rear tire, put transmission in 5th gear and try rocking the wheel back and forth. Don't force things! If it doesn't break free add more oil and let it set for a week or so then try again.
when it does come free you should add a bit of regular engine oil to each cylinder and leaving the pulgs out crank it over several revolutions befor putting plugs back in and attempting to start engine.
if you can't get it to break loose this way you may need to pull the head!

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