BMW K bikes (Bricks)

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stilbo

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Screwed up and pulled clutch assembly out of housing without making my own marks. I'm ok on the two pressure plate marks.
There was a dab of old white paint in the housing and a paint swab on the outer pressure plate (see photo).
Are these the "factory paint marks" the manuals refer to?
Not exactly aligned to each other but when. I index assemblies to these marks the balance drill points (most of them at least)are 120 degrees apart.
Should. I go with the paint marks as depicted?
Thanks!
The image upload utility is not very user friendly....
Especially on an iPhone.

    

Albyalbatross1

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Stilbo.. I have never marked the clutch parts on my own bikes or others when I service them. They are balanced at production as a single unit I believe. ( could be wrong) If you were to swap parts from another clutch as in half the pressure plates you most likely have a problem. just be sure to center the friction plate properly with the centering tool. (dimensions in the haynes manual) This is where I believe people end up with a vibrating balance issue and be sure to tighten the bolts in a sequence that keeps things even. The clutch centering tool should slide in and out freely once all is bolted in place.

    

ReneZ

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Hi, don't really believe in the above as, as soon as the clutch has been operated, the friction disk will be centered on the shaft. The centration pin is only used to make sure the shaft of the gearbox properly aligned when you put it back and is to slide into the clutch. The friction disk centers on the gearbox shaft, the clutch housing on the engine output shaft. Due to the clutch operation the friction disk will always be relocated withing the clutch housing.


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Greetings from Florida! Having a 'new' K :cyclops: Surprised-o:

Rene


BMW K100 - 1985 (0030029)
BMW K1200GT - 2003 (ZK01223)
    

Inge K.

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About the balancing marks on the basket and pressure plates:
Each of this parts is marked at the heaviest point, thats why they should be kept ~120o apart.


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

japuentes

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@ReneZ wrote:Hi, don't really believe in the above as, as soon as the clutch has been operated, the friction disk will be centered on the shaft. The centration pin is only used to make sure the shaft of the gearbox properly aligned when you put it back and is to slide into the clutch. The friction disk centers on the gearbox shaft, the clutch housing on the engine output shaft. Due to the clutch operation the friction disk will always be relocated withing the clutch housing.
+1
Ditto
bounce


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1988 K100RS SE/ABS
    

stilbo

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Thank you all for your help!
Inge, So the paint marks are the yellow dot on the housing and the white stripe on the pressure plate are the heavy points? If such is the case, these marks should be 120 degrees apart?
Thanks!

http://i39.servimg.com/u/f39/18/96/52/65/clutch10.jpg

    

RicK G

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I have done a few clutch repairs on the Ks and some have had no marks at all and in randomly choosing how to put them together I have not so far had any problem associated with an out of balance situation.


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If everything seems under control then you aint goin fast enough:- Mario Andretti
Bikes 1986 K100RT, 1993 K1100 LT, 1994 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 & 1976 SR 500 Yamaha for now
    

japuentes

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Hi there, if Iremember well, there are 3 marcs, basket, front and rear presure plates. At 120
best regards
JAP


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1988 K100RS SE/ABS
    

the.postman


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I replaced my complete clutch with new parts, all bought separately.... No paint marks... No problems


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1985 K100 RS 104EA49840092 #0081788 SILVERish (Madison) Prod. date 05/12/84
1984 srx 600
1986 cbr1000f/h
    

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