Hi forum, I did my valve clearances today and when I took the large cap off of the crank case to get to the crank I noticed the inside of it has gone milky so has been exposed to water somehow. The oil that leaks out when you are turning the engine over looked fine it was just on the inside of this cap. Sorry for the crappy picture but you get the idea. If it is only on the inside of this cap and not in the stuff that was leaking out is it unlikely that I have a problem? Should I drain the engine to be sure? Thanks.

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Now have a 2017 S1000XR Sport SE

2006 XT660X - Cat D write off due to someone pulling out on me - Pipewerx carbon fibre exhausts - Snorkel removed and airbox drilled - DNA stage 1 + 2 air filters - Kevs fuel controller mod - Scottoiler V system - Oxford heated grips - HEL braided brake hoses - Wilbers 540 rear shock - Brembo brake pads - AFAM chain and sprockets - Michelin Pilot Street Radial's - Denali DX Xtreme dual intensity spotlights