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1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 11:07 am
by R65john
Since you guys had the magic answer to my previously posted charging system problem, I'll throw another one at you.

Third clutch cable in 4000 miles. They are failing adjacent to the lever, about 1/2 from the grab lug.
Subsequent to my last replacement, I have been super lubricating the area, but is there possiby some other
simple answer?

thanks

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 11:22 am
by Motorhead
Sounds like you have a major misaligment with some hard rubbing that lube won't stop :cry:

so with out photos no clue :lol:

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 11:30 am
by R65john
Nothing to align.
The clutch lever assembly directs the cable straight into the attachment point.

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 11:37 am
by SteveD
Where the nebule thingee at the end of the cable is seated in its recess, is it free to move easily in the direction of the cable. A dob of grease on it might help if not.

Is the cable oem? If so, I'd buy one from another dealer...maybe there's a bad batch??

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 11:41 am
by R65john
Probably is OEM.
No BMW dealer in my area.
My mechanic orders parts from a BMW dealer in another city.
It is actually quite remarkable that BMW still provides parts service on a 28 year old product.

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 11:43 am
by chasbmw
A according to Tom cutter, some recent clutch cables have a hexaginol crimping next tothe nipple, this needs to be filed so it does not catch.

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 12:35 pm
by Kurt in S.A.
Slowly pull the clutch cable and watch the action of the cable relative to the handle. The cable barrel end must rotate in the handle so that the cable remains straight with no bending. If you see any bending in that last 1/2 inch of cable, then investigate to find out why. As has been suggested, there are several reasons for this problem.

Kurt in S.A.

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 1:10 pm
by Duane Ausherman
Many times I have seen defects in the cable that would require dressing down to make them rotate smoothly. This is easy to test. It is the same test for lubrication.

Slowly pull the lever back. The slower the better. If you see it move in jerks, you have a problem. The ball/barrell should move perfectly freely. In a few cases I have even seen a lever have the defect. Fix it.

An owner should get in the habit of performing this test on both levers before every long ride. It only takes a few seconds, so why not?

Back in the day, our cables required lube too. If you are holding up a new cable vertically, the inner wire should drop of its own weight. I don't know about these new cables with an inner sheath.

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 1:25 pm
by chasbmw
I have exactly this problem with my R90/6 after I replaced the clutch lever, I will need to do some investigation, but in my case the problem will most probably be in the new lever, new nipple area.

Re: 1984 R-65 clutch cable failure

Posted: Fri Aug 03, 2012 2:05 pm
by esman100
Grease the round cable pivot on a regular basis, like Steve mentioned above, and it should last for many years. It's very common to break at this point if it can't pivot. I'm at 30k on my Motobins non OEM cable and expect it to go for another 30k at least.