Originally Posted by
ThermionicScott
Being primarily a user of Shimano bottom brackets and cranks, I'm curious (in the spirit of friendly discussion, not argument, of course) where their guidance as to dry or greased can be found. My UN55 bottom brackets generally have a film of grease on the tapers that I figure is leftover from manufacturing or placed on for shipping. The included instructions don't say anything about stripping them to dry metal, so I haven't been. I haven't seen anything in the techdocs, either. Thanks.
Offhand, can't recall seeing a Shimano directive on this matter, as it pertains to square taper spindles. In the case their splined spindles, they are somewhat ambiguous, the wording implying that it's not necessary but is good practice.
On the other hand, Campagnolo documents from the same era specify thorough degreasing and even stipulate that the bolts must not be lubricated.