Oil in Alternator casing

Jef Walker

New member
Location
Kington uk
Hi all, could anyone tell me if I need to be worried about oil in the right hand alternator casing?
I have a 180 Jota series II with nippon denso generator 1981.
When I pulled the alternator casing off about a half litre of oil spilled out.
There are no seals anywhere behind the Sprag clutch, on the inner casing there are 3 holes directly into the sump, two at the top of the inner casing and one at the bottom they are about 10mm in diameter.
This suggests to me that oil is intended to go into the alternator casing.
Should I be worried? Or not?
Some of the photos are from a spare engine.
 

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The engine needs some oil there for the open main bearing, the sprag cluch and the gears, it is more o less the condensated dust of the oil fog everywhere.
 
When I dropped my bike 30 years ago on the Reschen Pass in rain in the Alps onto the alternator cover, Oil poored out of the hole that the tarmac hit into the cover when I picked up the bike.

As Andre said, the open ball bearing there is "greased" (well - oiled..." by the oil-steam and even on VERY lean angles while riding (or due to dropping the bike like in my case), oil can go there. Nothing to worry about, there is no oil seal and I assume that is by design to also oil the starter clutch and -mechanism.
 
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