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JD A stuck need ideas

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steve from NC

06-02-2003 20:21:33




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I have a '48 jd model A that is stuck and i need
some input. The tranny and gears are fine but the pistons,clutch, and fly wheel are not movin. I asked my uncle and he said to pour diesel into the head and block and to push on the one good tire (which is jacked up off the ground) to bust it loose. Is there a quicker/easier way to get this tractor unstuck w/o breaking any parts? please help.




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Frank in WV

06-03-2003 10:03:04




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 Re: JD A stuck need ideas in reply to steve from NC, 06-02-2003 20:21:33  
Steve, like the other comments go ahead and pull the engine. You then will be able to set it upright and our kroil or some other lubricant around the whole piston. I had the same problem with my 48, stuck and sat out in a field for 20 years. Luckly it seped some of the kroil past the rings and I was able to hammer the pistons down with a block of wood. You will need to inspect the bore and undoubtedly replace the rings, plus you may need to have the wrist pins redone plus check the connecting rods for play. Save yourself a lot of grief and money, tear it down and see what it's like inside.

Frank

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Dave K

06-03-2003 08:08:12




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 Re: JD A stuck need ideas in reply to steve from NC, 06-02-2003 20:21:33  
My opinion is to tear down the engine. Even if you break it loose you never know what kind of rust, busted rings etc is in there. Could cost you a whole lot more just breaking it loose and trying to run it. I always tear down a stuck engine. Not that difficult to get those old JD's apart and you not only learn a lot, you will know what you have.

Dave



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Jack

06-03-2003 07:34:22




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 Re: JD A stuck need ideas in reply to steve from NC, 06-02-2003 20:21:33  
Hey Steve,maybe"maybe",your clutch might have it stuck for the most part.Take all the clutch discs out and look at them for rust.Take the flywheel cover off and take a floor jack and a pipe and hook it on a tooth and jack up slowly.It may just break loose depending on how long and how much moisture it has been exposed to.Good luck,Jack(TN).



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Robert

06-03-2003 06:04:24




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 Re: JD A stuck need ideas in reply to steve from NC, 06-02-2003 20:21:33  
I agree with what john said. It sounds as if you're going to need to at least clean everything before even trying to start it. There's a good chance the rings will be rusted to the pistons, bores will need to be cleaned, etc.
If it were mine, I'd start removing the engine...
My .02 worth.
Good Luck!



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john

06-02-2003 23:43:35




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 Re: JD A stuck need ideas in reply to steve from NC, 06-02-2003 20:21:33  
Brake fluid and diesel mixed 50/50 makes a very good breaking loose fluid. Pull the plugs and fill it as full as you can. Doesn't work as good on the laydown piston deeres as it would on a verticle motor but chances are if it is not stuck hopelessly it will only be stuck on the bottom half of the cylinders anyway. Let it set for days with this mix in it before you mess with. Sometimes hooking another tractor drawbar to drawbar with it and rocking it will break it loose. Put stuck tractor in the highest gear it has. I wouldn't rock it for hours as the clutch in the "good" tractor will get tired of it before you do. It will build up some heat in it. If the motor is stuck to bad for this to work then even if you do break it loose it is gonna have to be gone into. Motors stuck that bad usually have valves rusted away and rings that would never make enough compression to run again. If it has set stuck for years and years with water in it, go ahead bite the bullet and take it apart. It is gonna be a mess anyway.

John

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