B400 waterpump lubrication
 

I expected a grease nipple at the waterpump.

I found a thread with an Allen screw.

Is the thread only a dummy because the waterpump has a permanent lubrication?

Bela,
The Allen screw is only to locate the bearing in the housing , not for lubrication.
As you mentioned the shaft and bearing unit is fully sealed and lubricated.
Geoff

Thank you Geoff!