Technical & Reference Section > Tech and Restoration

Bottom Bracket Fitting Help Needed

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Waxintaxin:
remember that they should be pretty tight and bitd ,blocks of wood and hammers
OR take it to a bike shop who will have a press

Rich

Moose:
If it does turn out to be the chrome that's a little thick and you can't cet them in - see if you can get someone with a lathe to turn the cups down slightly  :daumenhoch:

Paulo:

Has anyone come up with a good DIY cup fitting kit? Been playing around with some designs today, but I recogn the trick is to keep the cup/s square with the frame.

Send in your pics of your DIY tools. :daumenhoch:

Waxintaxin:
A Vice

TwoBobRob:
I use a hydraulic press on troublesome cups.  My mates old Lengthy took 2 tonnes of pressure to push the cups in   :shocked: :shocked: :shocked:

A big vice is as good. Use some wood to spread the load over the cups a little and as mentioned, keep everything as square as possible   :)

You would probably get away with some M12 or bigger stud, 2 peices of heavy steel plate bigger and nuts  (dont use stainless steel...)  plenty of oil on everything and wind the nuts in to pull the cups in.   :)

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