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1Back to top Go down   Stop disk on clutch carrier shaft Empty Stop disk on clutch carrier shaft Fri Apr 08, 2022 4:55 am

attitude

attitude
active member
active member
Found something on my garage floor after I rebuilt clutch and oil seal/o ring on my 1996 K1100LT.  I fear it might be the stop disk, item #10 on clutch fiche.
Clutch seems to work well and I have put about 400 miles on the bike with new clutch.  From what I can tell the k75 does not have this part but k100 and K1100 have this stop disk.
what does it do and what ID/OD is it?  cant find dimensions of the stop ring on vendor sites.  I need to know if this needs to go back into my clutch if it is indeed the stop disk.  Not looking forward to taking the clutch out again but time will tell.
thanks,
Jerome in Portland

edit:  washer I found is 37 mm OD, 28 mm ID, and 1.6mm thick.  hopefully this is not the stop disk.  It is also steel and attracted to a magnet.  Would this confirm that it is not one of my clutch project parts?  The thickness alone tells me it is probably not the stop disk, fingers crossed.



Last edited by attitude on Fri Apr 08, 2022 9:25 pm; edited 3 times in total

    

Ringfad

Ringfad
Life time member
Life time member
I can't answer all your questions but they can be purchased from here Tills - Clutch This might be able to give you an idea if it is the part you found.


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Stop disk on clutch carrier shaft Ir-log10

   ;BMW; K100RS Style Black 1987 105K Km     ;BMW; K1 Black 1993 60K Km     ;BMW;  K1100RS Black 1996       ;BMW; K1 Blue 1990 25K Miles
    

3Back to top Go down   Stop disk on clutch carrier shaft Empty Stop disc Fri Apr 08, 2022 5:48 am

daveyson

daveyson
Life time member
Life time member
Your right, the k75 doesn't have it, as it has balance weights instead of an absorber.

It acts as a thrust washer. I have one for a k100, it's non metallic (fibrous and brittle, almost looks plastic) Measures about 36mm ID, 50mm OD.  I think you should have it, do you hear a bit of rattle at different revs with the clutch pulled in? At different stabilized rev ranges? Or rolling off the revs, or something else? It helps to eliminate end float and minimise wear, amongst other things. There's a bit of a description in the thread "how to understand the k100 engine output shaft" on page one of the "how to" chapter in the technical section. 

I'll guess it stuck to the back of the clutch housing when you removed it, and fell off along the way. You want to replace it with one of the same thickness. 

Your second go at it will be quicker and easier, so not that bad.


__________________________________________________
11/1985 bmw k100rt (late model)  Vin. 0090567
 ~120,000 km
    

4Back to top Go down   Stop disk on clutch carrier shaft Empty Re: Stop disk on clutch carrier shaft Fri Apr 08, 2022 10:37 am

Point-Seven-five

Point-Seven-five
Life time member
Life time member
At $47.74, you better be very careful not to break or lose that ring!


__________________________________________________
Present:
1994 K75RT
1991 K100RS


Past:
1988 K100RS SE
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

5Back to top Go down   Stop disk on clutch carrier shaft Empty Re: Stop disk on clutch carrier shaft Fri Apr 08, 2022 12:21 pm

92KK 84WW Olaf

avatar
Life time member
Life time member
Point-Seven-five wrote:At $47.74, you better be very careful not to break or lose that ring!
And. . . . it needs to go back in.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 49,840 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

daveyson

daveyson
Life time member
Life time member
attitude wrote:

edit:  washer I found is 37 mm OD, 28 mm ID, and 1.6mm thick.  hopefully this is not the stop disk.  It is also steel and attracted to a magnet.  Would this confirm that it is not one of my clutch project parts?  The thickness alone tells me it is probably not the stop disk, fingers crossed.

It's not the stop disc. I can't think of a washer that size for a clutch job. Does it look like a fit for some other job you've recently done? With the ID and OD so close, it's enough to make you wonder if it's a shim. 

To explain an earlier point a bit better, the stop disk acts as a thrust washer for the absorber shaft, the K75 doesn't have an absorber, so the stop disc isn't then required.

 The take home message for me about this thread is what a brilliant trick that would be to drop a stop disc on the garage floor of someone who's just done a clutch job.


__________________________________________________
11/1985 bmw k100rt (late model)  Vin. 0090567
 ~120,000 km
    

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