Well,for what it's worth, my 99cc had a slight whine from the day I took
delivery. Some rear ends just have a little personality. No joke. It is not
too uncommon for gear sets to humm or resonate at certain rpm and load
combinations; however, If your noise IS new and/or you're getting up there
in mileage, it could be something as "simple" as a tired pinion or carrier
bearing. Now, on that note, dig this-- when I had my rear end torn down for
my 4.10 gears the fella disassembling it asked me if it had been making
some
noise--and indeed it had been. Upon my inspection of the "old" (40k)
bearings, some of the races did have some nicks in 'em. More than enough
to
cause the slight noise I was experiencing. This inspite of my good
maintenance and relatively easy driving style. So, I now have nice quite
bearings and a r&p with a "personality" under load at 65-67 mph. Nothing
to
worry about, just another gearset w/ a personality:) Use your judgement
as
to wether you have a whole bunch of miles and if the noise is new to
determine your course of action. Your "dust" is NOT abnormal --just try and
carefully wipe it out at your sservice intervals.
Hope this sheds some light on your situation.
Ken H
Simi Valley, CA
"The shortest distance between two points is a straight line"
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:59:14 EDT