Author Topic: bottom bracket query (Read 1094 times)

GavinKent · « **on:** February 19, 2011, 01:50 PM »

hi all

i'll try to explain this as best i can. i bought a mongoose crank to replace the generic one i have on my cali. i took it apart and when i started fitting the chain wheel on to the new crank, the nut didnt do up fully - there is one washer/spacer, but it seems on this crank i'd need two of them to make up the space . i checked the bottom bracket packet which i'd kept and there is no extra washer. am i right in thinking it just needs another washer, and can i just purchase one of those?

hope this makes sense and would appreciate some advice

thanks in advance
gav

HEYWOOD BMX · « **Reply #1 on:** February 19, 2011, 01:57 PM »

Do you have any pics and show me the part you need? I have loads of BB bits spare

Hootski70 · « **Reply #2 on:** February 19, 2011, 02:13 PM »

Are you using a genuine goose b/b , as the older goose opc's were 28tpi , normal bb 24tpi .

GavinKent · « **Reply #3 on:** February 19, 2011, 02:43 PM »

no, afraid this isnt a goose bb - here is the pic - you'll see the space - it's like the threaded bit on the crank doesnt go down far enough to enable the nut to tighten up completely

thanks both -

oldskooldayz · « **Reply #4 on:** February 19, 2011, 02:50 PM »

Looks to me like that is the wrong nut buddy

not an old school type from all the ones ive fitted

it should have a recess on the flat side of about 1/2 cm if that makes sense to ya as thats what clears the gap

heres a pic of the type you should be useing