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Rubber particles in oil

G

garrett

Joined Jan 2013
3 Posts | 0+
Norway
I have a '06 FS650, and on the last oilchange there was alot of soft rubber particles in the oil. The particles are black and the biggest 2x3 millimeters and aprox 1 mm thick. My first taught was that it was from the seal on a bearing..but there is not any sealed bearing as far as I can see.

I changed the oil and refilled. Then I drove the bike for 2 hours and then changed the oil again. The result was the same this time -> rubber in oil.

I have looked at the schematics of the engine and can not find any place where this can come from...

Anyone have a clue????
 
Could be rtv gasket stuff from the top cover. Can you see what color they used on the valve cover? Perhaps they also sealed the clutch side with the same stuff.
 
It's not from RTV or any gasket material. You can see that the particles are flat, like a seal ring. And it suddently appeard. Had 5-6 oilchanges since last time anything was done on the engine, and then just valveadjusting...
 
Ive had the left crank seal come to pieces before. If ur sure its peices of a seal, it might be worth a look.
 

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