Quote:
Originally Posted by The Rookie
Unfortunately someone beat me too that engine, not surprised at that price. Thanks very much for the thought though.
I drained the oil from my bike today and found some significant metal particles (see pics).
The small flakes in the strainer seem to be silver on one side, copper on the other. The grey bit of PTFE-type rubber intrigues me in the picture of the oil filter.
Is this debris in line with a big end bearing failure?
Before I remove the engine what checks should I do to confirm it’s a bottom-end issue? Or is this now irrelevant due to the amount of debris I have found meaning the engine has to come out for a proper clean regardless.
Tim
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The copper flakes are your big end shell bearings. Lets hope the shells did there job and saved your crank from any real damage. Crank journels can be polished ,i nside of rods honed and fitted with new specification bearings to get the correct oil clearance. Good time to check the pump relief valve and run 15/50 oil indefinatly.