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Bottom Bracket Balls-Up? Help!(4 posts)

Bottom Bracket Balls-Up? Help!Saddle_Sore
Dec 2, 2003 1:29 AM
Okay, tried to install a sealed-cartridge type bottom bracket on a spare frame yesterday, and after threading it in (by hand) the time came to tighten it up. I'd borrowed the correct tool from my LBS and I wound it up pretty tight.

Immediately after I tried to rotate the actual bit that the cranks go onto by hand - it was amazingly stiff, did't want to rotate in any direction. What have I done wrong? Or is this particular bottom bracket knackered (it's at least 7 years old)?

Sorry I cannot be more specific about what I did, but I haven't got my Zinn book with me so I cannot put names to particular parts of this bottom bracket (newbie me).
re: Bottom Bracket Balls-Up? Help!Dave Hickey
Dec 2, 2003 4:47 AM
Try loosening the non-drive side cup about a quarter of turn.
re: Loosen the non-drive side cup,Fredrico
Dec 2, 2003 8:08 AM
then tighten the drive side cup, or see if it will tighten. Maybe the thing is in all the way, but the bb shell is too narrow, eh? If everything is tight but not seated properly, that must be the cause, eh?

Are the threads still okay on the bb cartridge? Do the "spindles," the parts that the crank arms press onto, move easily by hand both when not installed and when installed?

Thems just a bunch of pieces that have to fit snugly together. If somepin don't fit, is either cause the parts is wrong, or somepin ain't screwed in all the way. Ain'at raight?
re: Bottom Bracket Balls-Up? Help!Saddle_Sore
Dec 2, 2003 9:05 AM
Thanks for the tips, will thrash the bejesus out of it this weekend.