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Final drive oil seal 750T '91 (V65/50/750 Nevada)

C

colin travis

Just got it firing!
Joined
Jun 23, 2013
Messages
2
Location
Montreux, Switzerland
Hi I am hoping someone can assist. Bike: 1991 750T (essentially a V65 with a Nevada 750 engine, sold in UK) I am trying to change the final drive oil seal, between the brake backing plate / drive housing and the axel. It leaks oil all over the brake disk. The disk brake is on the same side as the drive. I have removed the crown wheel and inner bearing race, but I can't see how to separate the axel from the case. There is a large roller bearing set into the case (see photo), supporting the axel, and the seal is on the other side, behind the cush drive / hub ( not sure if that the right term, see photo) . How do I remove the axel from the case without trashing the bearing or the case? The case is cast Aluminium so use of a hammer is too risky! I'm a competent mechanic but I don't have a full workshop or a hydraulic press, just a had held fly wheel / bearing puller. Any advice gratefully received. Many thanks.
 

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There is a wire type circlip there somewhere from memory. Once that is removed you should be able to lightly tap the end and it will move out of the bearing. Check the surface where your seal runs as it can run a slight groove into the metal and apart from getting it built up with chrome any replacement seal will leak as well.
 
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Look at my pics, sorry for description in non-readable language, but anyway - I think just a few of them are of any use for you. If you want to get to a big seal, I'd heat up alloy plate with big bearing and try to tap the steel "middle" out of alloy first. Just remember to use soft mallet, or tap it through alloy plate.
 
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