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John Deere Tractors Discussion Forum
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1949 John Deere A stuck motor

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Cris

12-03-2007 20:03:16




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I bought a 1949 A,that as running approx, 10 years ago when parked under a shed. I have tried putting marvel mystery oil in thru the spark plug holes and keresone and letting it soakfor about 10 days, also tried turning the big flywheel on the side with a big pipewrench and tried pulling it with another tractor and engaging the clutch and still nothing has worked yet. I am wondering if the oil is getting all the way around the pistons since they are horozontal?? Any ideas on how to free up this rascal? Thanks

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DGK

12-04-2007 15:18:32




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 Re: 1949 John Deere A stuck motor in reply to Cris, 12-03-2007 20:03:16  
If not in hurry I like to take carb and exhaust pipe off and fill the cylinder full from top side that way it gets valves to. but still take rocker arms off before you try to turn. If in hurry as last resort from terying apart put nipco heater on block for an hour and you will be surprissed what heat will do. You will still need bar on flywheel to turn it. Works for me on most tractors. Good luck! Doug

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Ben.So.Tex

12-04-2007 04:43:56




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 Re: 1949 John Deere A stuck motor in reply to Cris, 12-03-2007 20:03:16  
Keep pulling it around and sooner or later you WILL BEND A ROD and then you can throw the tractor away. Soak it. take the rocker off. you could have a stuck vavle and you could bend a push rod. Worse case you may have to pull the block with the pistons, I had to on a 720 that was stuck thight. Good luck



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RobMD

12-03-2007 20:11:09




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 Re: 1949 John Deere A stuck motor in reply to Cris, 12-03-2007 20:03:16  
we just gave you a whole bunch of ideas down below!!!



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