Quote Originally Posted by claymore View Post
Yet to be convinced of WHAT. There are seals TO KEEP THINGS OUT and in so how does the water get in to somehow wreck the bearings, not how does the grease expand and get out.
Well if expansion is accommodated and the bearing compartment is allowed to relieve pressure then, very obviously, the same mechanism has to contract when it cools - if water, for example, is present when the cooling occurs then it is very likely that water must be drawn back into the bearing. I'M NOT GUESSING HERE - this is what I do for a profession - and I have done it for a long time - I see expensive bearings in expensive machines fail due to water injestion, and I see it almost on a weekly basis. Sometimes it is due to the force of a cleaning hose, sometimes it is due to contraction sucking water (and dirt) in. If you tell me that motor vehicle bearings are completely sealed then all I can say is B.... S... . Modern design is all well and good, but that sort of design is very, very, unusual - and very, very, expensive - Mr Honda is good, but nowhere near that good. None of us could afford it.