Strange oil leak from the pocket near the alternator

[1984bmwk100]

Hello

1984bmwk100

In my 1993 K1100RS, I saw some oil near the seam between the engine and the transmission housing after a ride. There was oil under the transmission too, but since that could have just dripped down I went to a car wash bay, cleaned everything and left the bike overnight. Now I see that under the transmission I don't see any oil, but there is oil near the seam, but NOT exactly at the seam.

On closer inspection it seems to be coming from somewhere above and it looks like it is from the narrow cavity that is in front of the alternator, most likely from near the bolt inside. What does this mean? Any clues on what should I check next? I am attaching a picture.

Earlier, I noticed that some of the bolts that connect the transmission and engine were loose. Perhaps tightening this hidden bolt can solve the issue? I am afraid of over torquing it and breaking this hidden bolt.

[volador]

Possible oil seepage from a leaking alternator drive dog shaft sealing ring otherwise

May have to redo the 3-Bond 1184 liquid gasket seal between the intermediate flange (bell housing,intermediate housing) and rear block
note the locating dowels

Intermediate flange socket head screws are torqued to 9Nm

[Laitch]

Earlier, I noticed that some of the bolts that connect the transmission and engine were loose. Perhaps tightening this hidden bolt can solve the issue? I am afraid of over torquing it and breaking this hidden bolt.

If flange bolts are loose, you probably should loosen all of them then tighten them using a staggered pattern. You don't need to back them all the way out; just take off the tension. If you're lucky, the housing won't leak, otherwise you'll need to clean and reseal as previously advised.