Join Date: May 2004
Location: Sumner, WA
Bikes: '92 novara ponderosa, '74 schwinn le tour, Novara fusion, novara transfer, novara randonee(2), novara careema pro, novara bonita(2).
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It is either that the bottom bracket cartridge and adaptor ring are not torqued quite enough (not nessarily the fault of the mechanic).
If torquing it to the high end of the specified torque range does not work, apply blue(med/removable strength 242 or 243[oil tolerant]) or purple(low strength 222) loctite to the adaptor ring where it presses against the bottom bracket cartidge and to the threads on both sides, then torque to the medium torque spec. If installing in an aluminium bottom bracket shell, completely coat the threads in the loctight to prevent steel to aluminium corrosion. Torque immediatly affter loctite is applied and then let it stand unused for 24 hours at room temp(65+ degees F) to cure to full strength, because if the loctight is destirbed after setting has begun it will be nearly useless and need to be reapplied.
If the loctite doesn't work then it is somthing inside the cartridge and all you can do is replace the unit or run it untill it dies then replace the unit.