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Re: JD 2640 clutch, tranny, starting problems

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R Scott S

07-17-2013 14:25:45

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TX JIM,I put a new JD pilot bearing in when I did the clutch. I lightly tapped it in until it seated. The clutch disc is an aftermarket disc. I didn't think to check to see if it was warped out of the box. What happens when either of the two above are bad and would it relate to the apparent transmission problems that I now have? Yes the the starter has 12 volts to it. This tractor started fine only when disengaging the hydraulics by a screw-in pin on the pump. I am going to check and see if the starting problem is there - maybe a broken pin etc.

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Tx Jim

07-17-2013 15:46:10

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 Re: JD 2640 clutch, tranny, starting problems in reply to R Scott S, 07-17-2013 14:25:45  
I've seen newly installed pilot brgs & clutch disk ruined when the 2 tractor halves were forced back together.

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R Scott S

07-17-2013 16:44:52

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 Re: JD 2640 clutch, tranny, starting problems in reply to Tx Jim, 07-17-2013 15:46:10  

This would be only my second clutch installation so not an expert by any means. When putting the two halves back together I had my friend putting pressure on the one half while I used a screw driver to slowly turn the ring gear while it engaged the 1st shaft. I did the same immediately until the 2nd shaft engaged and then the two halves were close enough for the bolts to finish pulling them together. Anyhow it looks like I need to split the tractor again and check the clutch disk and pilot bearing as you and the reply from D seem to be pointing me there.


I installed two heavy gauge ground wires directly to the frame shortly after purchasing the tractor 7 years ago to alleviate starting problems back then.

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07-17-2013 16:18:30

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 Re: JD 2640 clutch, tranny, starting problems in reply to Tx Jim, 07-17-2013 15:46:10  
Some reman clutches are warped out of the box but you can usually get them in gear though not easily. You didn't put it in backwards?
Where does your battery ground? Perhaps it's not tight.

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