leaking hydraulic idler shaft on 630 JD

fumblefarmer98 · Aug 19, 2015

Got my idler gear and shaft out.I think the shaft is ok . Its a little blue on the outside end . At $700. it will have to do. Ordered bushings too . Would like to drill and tap the case for oil passage . Looks like a 3/16 compression fitting would fit a 3/8 taped hole . frightening job . Don t know how a guy would reach a tap in there . Thanks for any advice .It was this site that helped me get it apart successfully .

fixerupper · Aug 19, 2015

My 630 lube hole is 1/8" pipe thread drilled at the factory.

fumblefarmer98 · Aug 19, 2015

Thanks for the reply . Don t know if I should chance it . Thanks for the reply anyway.

Mike M · Aug 20, 2015

You were able to get the bushings ? You used to have to buy the gear to get them.

fumblefarmer98 · Aug 20, 2015

I didn't get them but they ordered them so if they are the ones I guess that will be good . Sure would like to drill that out . Do you think a guy would be successful ? Bushings are supposed to come Friday afternoon . Guess I could buy a 1/8 inch pipe tap but have put blood into this tractor . The job scares me a little . The bushing number I have is A3691R with a capital D above it. Supposed to exist . One side is loose like it was spinning in the gear .Hope you have a good day . Thank you.

Merton · Aug 20, 2015

Remove the Hyd. pump and take it to a machine shop and get them to install it for you.

Mike M · Aug 20, 2015

You would have to remove the governor housing.

I did one on a 620 and I can't for the life of me remember if I did it on the tractor or if I had that gov. housing off for another reason ?

PJH · Aug 20, 2015

I took my governor housing off to drill it. The drill chips falling in the engine worried me. I used a long pilot bit and drilled it from the inside out, then used the correct bit for the pipe fitting and followed the pilot hole from the outside. I want to think that there is a dimple in the inside of the housing to help you get started, but it's been a long time. It wasn't a hard job. I blocked it up in a drill press. I think you could easily do it with a hand drill. Good luck with the bushings. They were NLA when I needed them, but the gear with bushings in it was less than $100 back then.

fumblefarmer98 · Aug 20, 2015

Thanks to everyone for help.

leaking hydraulic idler shaft on 630 JD

fumblefarmer98

Member

fixerupper

Well-known Member

fumblefarmer98

Member

Mike M

Well-known Member

fumblefarmer98

Member

Merton

Member

Mike M

Well-known Member

PJH

Well-known Member

fumblefarmer98

Member

Similar threads