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Old 08-17-2014, 05:22 PM   #1
Crofty OP
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Location: Launnie, Tas
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1977 R100S Forks question

G'day, just in the process of re-building my forks. When I pulled the dampening rods apart there was no fibre washer on top of the metal ring. part #15.

From the Max parts list I got the measurements for it and I found washers the right size but it seems to leave the ring with bugger all movement.

Is this correct as I would have thought in the rebuild kit I bought there would have been a washer if it was required as everything else is there?




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Old 08-17-2014, 05:53 PM   #2
SculptD
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Those damn fork drawings have confused legions of airhead parts orderers. Lots of multiple parts from multiple years, that sort of thing.

My understanding, and one might have to dig deep into the snowbank to find all the details, is that fiber washer was added at some point to quiet a perceived clicking noise made by the valve. I don't know what year the part was added, but it may have been later than 1977.

Never heard the clicking myself.

Anyway, throw it away. It serves no mechanical function, and as you say, creates a very tight situation there with the valve. Now, maybe the valve doesn't need all that space anyway, and the washer does no harm either.

All clear?
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Old 08-17-2014, 06:08 PM   #3
bmwrench
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It was actually a very thin rubber washer, which was indeed intended to reduce noise. It usually tangled itself in the aluminum valve, resulting in nearly no damping.
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Old 08-17-2014, 06:14 PM   #4
Crofty OP
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Thanks for the replies, it is indeed a bit confusing.

Anyway, washer will stay out.
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