By joining you will help ensure that we can continue to provide this service
JOIN HERE!
R60/6 gearbox question
-
- Posts: 2
- Joined: Fri Dec 30, 2022 11:26 am
R60/6 gearbox question
Having never ridden an older BMW until I bought this one for an Ohio winter sanity project, I am hoping one of you veterans out there might lend me your experience. This is a 1974 R60/6, 32,000 mi, dealer serviced, purchased from the gal who bought it new, was stored 30 years, brought back to running condition by the local dealer before she put it up for sale. It has low compression (rings) and needs a clutch, which I have removed and am awaiting parts.
My question is about the shift from first gear to second: Do these bikes typically clunk into second gear pretty hard? All other upshifts are quite smooth by comparison, and I found more metal shavings in the gear oil than I like, so I have concerns that I have internal gearbox problems that need investigating. I was able to lessen the clunk by letting the rpms drop more than usual before the shift, and maybe the clutch issues contribute to this, but I’m in the dark here, and maybe you know what the problem might be?
Thank you for any insight you can offer.
- schrader7032
- Posts: 9016
- Joined: Fri Oct 27, 2006 3:00 am
- Location: San Antonio, TX
- Has thanked: 2 times
- Been thanked: 29 times
Re: R60/6 gearbox question
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
- srankin
- Posts: 1054
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 14 times
Re: R60/6 gearbox question
LOL, the BMW pre 81 bikes could be a bit clunky. If you have come from another company's bike or a newer BMW, it can be surprising.
I am guessing you are talking about the clunkiness occurring before you pulled the clutch? Or are you still waiting for parts and riding yet? Anyway, a bad clutch and dry transmission splines could be a large part of your problem.
One of the big things airheads need to have done from time to time is to have the transmission input shaft splines lubed.
As for the stuff in the transmission, Kurt has the best answer. Keep us up to date on your progress and good luck. St.
Re: R60/6 gearbox question
I found that the moly additive helped a great deal with the clunkiness. One still needs to make very deliberate shifts.
Here is a link to the Gear Guard M product -
https://www.dupont.com/products/molykot ... itive.html
A company known as LiquiMoly makes a similar transmission additive.
https://www.liqui-moly.com/en/mos2-anti ... .html#1040
-
- Posts: 2
- Joined: Fri Dec 30, 2022 11:26 am
Re: R60/6 gearbox question
I have the spline lube (LiquiMoly LM47), a new clutch spring has arrived, and the reconditioned other parts are shipping back from Southland Clutch this week. The plan is to incorporate all your suggestions. (Will change the rear main seal and oil pump o-ring first.)
This has been a gas so far, really a fun bike to work on, and sure nice to have help along the way. I really appreciate your generosity. Please stay tuned.
- srankin
- Posts: 1054
- Joined: Fri Jul 14, 2017 8:45 pm
- Location: Spencerport, NY USA
- Been thanked: 14 times