I found most of my bottom bracket noises weren't bottom bracket noises at all, they were crank arm to bottom bracket noises. I eliminated them by making my standard practice to always torque to 35 ft/lbs using a click type torque wrench. I haven't had any problems with noise from the bottom bracket area since then.
If you're wondering where I got that spec from, Sugino's suggested torque spec is 50 newton-meters for their square taper cranks which translates roughly to 35ft/lbs. On Thu, Sep 11, 2014 at 11:04 AM, 'Tex69' via RBW Owners Bunch < rbw-owners-bunch@googlegroups.com> wrote: > My LBS is having a problem dealing with a nasty creak in the BB area of my > (silver) QB. They don't seem to know what BB would be best, whether to use > ISO or JIS, or whether the crank (standard Sugino crank that shippped with > the QBS) is the issue. The most recent is that the BB installs fine and > that the crank arm might be rounded off and not setting. > > Any QB BB wisdom would be appreciated. My QB is a low-mileage sunny-day > machine that has 2000 miles or less. IMHO, it should have a trashed/rounded > crank unless it was mis-installed in some capacity. I ride and rarely > wrench, at least on BBs and cranks. > > thanks > > Tim S > Louisville KY > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rbw-owners-bunch+unsubscr...@googlegroups.com. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > Visit this group at http://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/d/optout. > -- Keep the metal side up and the rubber side down! -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
