The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: manxr65 on April 05, 2010, 10:25:25 AM

Title: help with gearbox
Post by: manxr65 on April 05, 2010, 10:25:25 AM

im having a nightmare of day , went for a test ride today after months of work i lost the gears , i rode back in 3rd gear , gearbox ok but i cant get a gear when shifting , got gearbox out and i cant get the drive shaft plate away from gearbox , i got the big nut off but i stuck ,if i can get this of will it let me get the cover off. any ideas on how to get it off.

also i looking for a spare gearbox for a 79 r65 if someone has one for sale , must be complete and running , anywhere around north of england
thanks

Title: Re: help with gearbox
Post by: Bob_Roller on April 05, 2010, 10:30:11 AM

By chance, did you replace the gear shift shaft oil seal on the side of the transmission ?

Title: Re: help with gearbox
Post by: manxr65 on April 05, 2010, 10:52:03 AM

no i didnt ,  i think its  a spring come a drift , i cant get the drive plate off   from gearbox to have a look inside

Title: Re: help with gearbox
Post by: Bob_Roller on April 05, 2010, 10:54:35 AM

From what I've seen in other posts, you need a puller, and apply heat to get the drive flange off of the transmission output shaft, I believe it's a tapered fit .

Title: Re: help with gearbox
Post by: caci on April 06, 2010, 04:47:38 PM

Manxr65,

This what you need, man:

http://www.cycleworks.net/index.php?main_page=product_info&cPath=29_33_52&products_id=321

Any other technique, and you are flirtin' with disaster.

Chris

Title: Re: help with gearbox
Post by: Justin B. on April 07, 2010, 10:27:31 PM

Yes, I can vouch for a puller being needed.  I made this one when I rebuilt the tranny in the Junkyard Dawg...

Title: Re: help with gearbox
Post by: Rob Valdez 79 R65 on April 08, 2010, 04:16:36 PM

Ah, so it is not the nut that gives off the loud BANG! when you break it loose, it is the flange coming off of the taper.

Be ready for that, Manx, it is a doosey (so I have been told).


This is the website you need to read over, if you are going to try this, yourself.

http://largiader.com/tech/airtrans/