About 2 weeks ago, in the middle of a ride, my brother's Vee2 started leaking fluid from the lower clutch pump ( a.k.a. clutch release cylinder).
Long story short, he took it to the dealer for an emergency repair and found A LOT of mud, sand and stuff into the pump. It made its way inside the rubber seals and caused the leak. After quickly cleaning and refilling, the clutch system came back to operating condition. It worked fine since. Today, we received a new pump, and decided to replace it.
We took our time and removed maybe a spoonful of dirt from the chamber, and the pushing pin was coated with a thick layer of grease and mud. Whenever the clutch lever was pushed, dirt would go inside the rubber retainer in the engine, and when it was released, dirt would come inside the seal of the pump.
After a quick inspection, we found out the clutch push pin runs unprotected less than half and inch from the front sprocket.
No wonder the clutch pump chamber was filled with the nasty stuff. The two draining holes in the cover plate are just not enough and the way the pin is constantly showered by the chain, is less than amusing.
Prior to reassembling. we decided to cover the pin with a rubber hose. The hose is long enough to cover the pin completely and won't move when the clutch is operated. It's loose enough to let the pin move freely but not too wide to get trapped by the chain.
Would you like to share your impressions?