FD-Any ideas?

[Deleted account 190920001]

Judging by the state of internal bearings in Patzx final drive these are not "Most lubrication systems". I suspect the oil gets centrifuged to the edges of the case by the crown wheel gear teeth, which could explain why the pinion nose bearing ran so dry on Pat's bike.

It also suggests that too much oil will cause some to get blown out of the air vent, but mine has been fine. So on balance, I'm using what the original design engineers wanted rather than what BMW marketing and PR wanted.

Why would you trust what the BMW engineers wanted when they designed such an utterly stupid and unreliable FD in the first place? You do realise that these same engineers said originally that these FD's were fit and forget and will never need maintenance or oil changes? It was also the same engineers that said the small pinion bearing was right. Given their other mistakes why would the amount of oil be correct.
Here is another connection for you. It was 220ml when the FD was never supposed to need servicing. When they realised that was utter bolox they put a 1200 mile service on it and guess what? They reduced the amount of oil required!

 

[Bendy toy]

After all that yet again ghe argument** falls in favour of more oil rather than less oil. The whole box of bits needs all the help it can get b
** And sadly this is / has (?) become an argument.
I bought the bike 40% because of a sad belief that shafts are better than chains and 60% because of the front end handling. At least I was more than half right.

 

[Deleted account 190920001]

Can't argue with you on the front end. That said my new bike with semi active forks is just as good. Telelever is brilliant though. Anyway that's all OT.

 

[Roymondo]

Judging by the state of internal bearings in Patzx final drive these are not "Most lubrication systems". I suspect the oil gets centrifuged to the edges of the case by the crown wheel gear teeth, which could explain why the pinion nose bearing ran so dry on Pat's bike.

It also suggests that too much oil will cause some to get blown out of the air vent, but mine has been fine. So on balance, I'm using what the original design engineers wanted rather than what BMW marketing and PR wanted.

My understanding is that there was NO VENT fitted until April 2010 - hence the oil getting pushed past the seals on earlier bikes.

 

[Bendy toy]

Sorry for my confusing post.
My 2008 has no vent and has had no seal problems running 220ml at oil change time. The failed wheel bearing and seal leak at 50K miles hardly counts. .