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Old 10-29-2012, 08:18 AM   #5
R100RT Mark OP
Gnarly Adventurer
 
Joined: Feb 2011
Location: Georgia, USA
Oddometer: 274
Quote:
Originally Posted by boxermoose View Post
IIRC there are a couple o rings where the brake shaft goes thru the final drive housing - I'd kinda assume some gear oil (or mist) has migrated across the shaft and settled out on the inside of the drum. Mixed with brake dust it's look like paste
Quote:
Originally Posted by hardwaregrrl View Post
+1 make sure to get the correct sized O rings for the brake cam. no substitutions. Get them from BMW.
OK, are we are talking about item #20 [part #35 21 1 457 605] GASKET RING - 12X1 on this diagram? There's only 1# called off. What is the function of the gasket ring #18 and might this be a source of "misting"?

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Mark

Current - '74 TR5T : '93 R100R : '06 ST3s
Past - Variety of British, French, Italian, Czechoslovakian, and German bikes from the '70s, '80s and '90s
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