Hi Mark,
...the older models had their shafts in an oilbath. Those oilbathed shafts "never" broke down...
I borrowed a K75 in 2001. I poured hypoid (Omega 690 80W/90 GL7) in its shaft - it still runs with the same oil, about 40-60 000km or so later according to the new owner.
The omega special hypoid litterally climbs and do not foam at all. If you are worried about the rubber shock absorber, use automatic gearoil, e.g. Omega 699 5W/20 which is just about as non-foaming as their hypoid.
The recommendation I got from Motorworks back in the 90:ties was "give it a good squirt of oil now and then" refering to the u-joints. I -am- lazy, so no way I do such service as you are prepared to do => I extrapolated the recommendation from MW to "if oil is ok in these shafts - then I'll fill'em up like the old once were!" That's how the K75 ended up with an oilbathing shaft.
Am I the -only- one who have tested to go retro on the beemer shaft service and maintenance?
__________________
Drive Safely,
Albert
|