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1937 A John Deere torque specs

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Jimmy Z

03-06-2003 17:17:10




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I have been recently been restoring a 1937 A John Deere. I was wondering if anyone out there could tell me any or all of the torque specs for this model (such as the connecting rod, the head bolt, and the engine block). Also, is there any torque needed on the front steering spindle?? Or is it just supposed to be cranked down? I appreciate any help!!!!




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A Puller

03-07-2003 13:29:56




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 Re: 1937 A John Deere torque specs in reply to Jimmy Z , 03-06-2003 17:17:10  
Just did my 36. rods to 100 ft lbs head to 150 if you have the hardened studs (dark collor) if not then only 130. Good luck be careful on those head studs.



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barry from co

03-07-2003 10:27:21




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 Re: 1937 A John Deere torque specs in reply to Jimmy Z , 03-06-2003 17:17:10  
Hi Jimmy, i just reworked the head on my 37 A, according to J.D. the torque on the headbolts is 130lbs to 150lbs, rockerarms for pushrods was 85lbs.



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Preacher John

03-06-2003 20:31:25




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 Re: 1937 A John Deere torque specs in reply to Jimmy Z , 03-06-2003 17:17:10  
Hi Jimmy. I just put my '48 A engine together. I know yours is unstyled and mine is styled but it may not be much different. My service manual said 150 lbs for the head. 100 lbs for the rods, and then tighten to the next cotter pin hole. The block torque is 125 lbs. ( I had to cut down an 1 1/16 socket in order to fit it and the torque wrench between the block and the frame. J.R. Hobbs emphasizes in one of his books that the block on some of the late A's must be torqued evenly to 125 lbs) Again this may be different from your tractor. Hopefully someone can give a more definate answer. Good luck, Preacher John

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Joe S

03-07-2003 09:48:58




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 Re: Re: 1937 A John Deere torque specs in reply to Preacher John, 03-06-2003 20:31:25  
Be care fullll on the rods. The bearing are different on the 48.



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