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Author Topic: Clutch Cable  (Read 1556 times)

Crossrodes

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Clutch Cable
« on: June 24, 2013, 07:44:44 AM »
Last year my clutch cable failed.  It came apart at the clutch handle.  This year the same thing has happened.  I've probably got about 5,000 kms on this cable.  Is this normal for these cables to fail like this.  I bought this cable from BMW. :-/

Offline montmil

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Re: Clutch Cable
« Reply #1 on: June 24, 2013, 07:56:42 AM »
Should not fail that soon!

Suggest a very close inspection of the clutch lever recess where the cable's barrel end fits- look for a burr or spur that might be a concern. Also, the barrel should have some lubricant to permit rotation. I use a white grease. Look over the perch, too. Same deal... boogered up metal interfering with the cable's smooth operation.

Let us know if you find something. Good hunting.
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Offline nhmaf

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Re: Clutch Cable
« Reply #2 on: June 24, 2013, 09:33:10 AM »
+1 with what Monte said - the barrel end is supposed to ROTATE smoothly in the lever end, and the cable strands should not appear to bend.   If they do, the cable will break in short order.    Keeping that round recess of the lever smooth and greased (I use a dab of the sticky red grease myself) is important to long cable life.   If the lever end is severely chewed up or has been worn into an oval shape, then you should replace the lever as it will just continue to repeatedly bind up the barrel and wear the cable out.   If the lever recess has minor scratches/nicks you can usually restore it with some find  sandpaper and small wooden dowel
Airhead #12178 ? BMWMOA #123173 ?BMWRA #33525 ?GSBMWR #563 ?1982 BMW R65LS ?1978 BMW R100/7 1998 Kawasaki Concours

Crossrodes

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Re: Clutch Cable
« Reply #3 on: June 24, 2013, 12:04:40 PM »
Thanks guys.  I can't check it out now (currently working on an old truck) but I'll check those items when I can.

Offline Julio A.

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Re: Clutch Cable
« Reply #4 on: June 24, 2013, 11:04:34 PM »
I'd also like to add the possibility of a worn out plastic bushing between the lever and the screw securing the lever. It wears in an oval shape and makes the level pull the cable in awkward angles.
Julio Alarcon
1981 R65
1976 R90/6
2001 R1150 GS/ADV
2015 TR650

tvrla

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Re: Clutch Cable
« Reply #5 on: June 24, 2013, 11:23:02 PM »
+1 on Julio's suggestion. If the lever feels pretty loose in the perch, yet the pivot screw is tight, check the plastic bushing in the lever.

Crossrodes

  • Guest
Re: Clutch Cable
« Reply #6 on: June 27, 2013, 05:11:51 PM »
Guys thank you all for your inputs.  

Today I removed the old cable and checked all the parts against the parts list in RealOem.  It turns out that I am missing a bushing that fits in the handle where the cable attaches to the handle.  I have a new cable (always carry it with me just in case) so I have ordered one more cable plus the bushing.  It looks like I won't be getting it for a couple of weeks as it has to come from Germany.

Offline Matt Chapter

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Re: Clutch Cable
« Reply #7 on: June 28, 2013, 09:59:36 AM »
Quote
It turns out that I am missing a bushing that fits in the handle where the cable attaches to the handle.  


Now you're to the critical part.  Here's what happened to me:

My clutch cable broke the first time, I lost the bushing.  New cable, everybody's happy.
Until, it "broke" the second time.  No bushing, the cable end pulled through the section of the handle.  Started to replace the cable, realized I needed the bushing, replaced that.
And then, since the handle was sharp, it broke again even after the bushing was supplied.
Final solution: new cable, same bushing, new handle.

The morale of the story is: make very certain the handle is not sharp or burred.  I use my old handle for a paperweight at work now.
'04 R1150 RT ~41000 miles
'86 R65 / '84 motor ~72000 miles. SS lines, Spiegler rotor, Progressive monoshock, Keihan silencers, a piece of Pichler fairing.
'76 CB400F ~26000 miles. non-runner!

tvrla

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Re: Clutch Cable
« Reply #8 on: June 30, 2013, 08:12:26 AM »
The littlest details can turn mole hills into mountains, huh?

Offline Matt Chapter

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Re: Clutch Cable
« Reply #9 on: July 01, 2013, 09:49:54 AM »
Quote
The littlest details can turn mole hills into mountains, huh?

Did I mention that the second time it happened, it was in rush hour, up hill, on a 4 lane divided highway with traffic signals?  In the May Texas heat?  Made it interesting to go clutchless home.

Ugh.
'04 R1150 RT ~41000 miles
'86 R65 / '84 motor ~72000 miles. SS lines, Spiegler rotor, Progressive monoshock, Keihan silencers, a piece of Pichler fairing.
'76 CB400F ~26000 miles. non-runner!