Transmission Input Shaft Gear Problem

[giarcg]

Seems the ears on my 1984 R80 transmission input shaft gear failed and a replacement gear is required. I'm hoping to possibly locate a failed shaft assy due to spline wear that had a serviceable gear but would welcome any advice on how to proceed in sourcing and replacing this gear.

Thanks,

Craig G.

[mymindsok]

The cheapest and probably smartest thing to do would be to look for a rebuild able box of the same build period.

Boxes needing a rebuild frequently sell for $150 or so and those parts might easily cost that much. Add that fact in with other considerations and a different box might be the best way to go.

As Always, YMMV..!

[lostboy]

Why not just renew the gear? It's still available, and not too overpriced.

[gertiektn]

Why not just renew the gear? It's still available, and not too overpriced.

Also, there is a couple of sets available on Ebay buy it now for under 1C.

What were the symtoms noted if any??

[giarcg]

The ebay items are the 15 degree versions which preceded the 17.5 degree that I have ...but good idea. I found the problem by inspection of the gearbox although I think it would have been apparent under hard acceleration.

May have to go new...

Thanks to all.

[04R1150RS]

there are two different 17.5 gears, an earlier one (#591) which you probably have and a latter one (#991). The input shafts have different splines. It would be better to just buy the primary gear. Inspect the spring for being in spec, also the ears on the thrust adaptor.

I have a input shaft and two bearing (bearing have about 600 miles on them) which are in good condition if you are interested in it.

http://i151.photobucket.com/albums/s146/ahobie17/1984%20BMW%20R80%20GS/IMG_0539.jpg


Look here for some info

http://www.advrider.com/forums/showthread.php?t=562154