Join Date: Apr 2002
Location: Dandridge (Near Knoxville), TN, USA
Originally Posted by cccpastorjack
This does not look like a major redesign to me, but it does appear that perhaps they used the new design of circlip to keep the bearing from spinning excessively, producing heat and ruining the seal????? Anyone concur?
Frankly, the potential for leakage is still there, so I would continue to drill the weephole on my own bike as a preventative measure. It just seems wise.
It is also wise because the failure of the Transmission Input Shaft Seal (which also happens from time to time) can likewise ruin the clutch. The weephole is the obvious solution to the problem for the long haul.
The amount of spinning is the same no matter what circlip is used. The only time the piston will get near the circlip, or touch it, is when you have the clutch lever pulled all the way in. When it is out, the piston is pushed back into the cylinder against the spring inside it. The bearing will be spinning anytime the engine is running. It is pretty amazing the bearings last as long as they do, since they are being spun all the time.
I agree, no matter what they do to the cylinder I would still want the drain hole. It also protects the clutch against failure of the rear tranny input shaft seal failure.
I don't want to achieve immortality through my work...I want to achieve it through not dying.
EX: '01 Black LT, BAT BYKE (Totaled at 110,000 miles)
IBA SS, BB, BBG, 10/10ths.
No bike now, but maybe in the future.