RADBMX.CO.UK
Technical & Reference Section => Tech and Restoration => Topic started by: Taipan on May 29, 2011, 11:38 AM
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Had a OPC crank re-chromed but the chromer has chromed up to the first part of the thread a bit to much :(,I think I need to have it re-cut,can anyone help or advise,thanks
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Thread the pedal in from the other side that should help clean the thread out :daumenhoch:
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pedal or bb thread?
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pedal or bb thread?
AHA! Didn't think of that :-[ If it is the BB, then a little patience and some lube will be required but you should be able to clean the thread out using the BB nut failing that you may need to go to a machine shop and see if they have a thread cutter they can run over it for you to clean the thread up :daumenhoch:.
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yep its the bb thread,cant do it with the bb nut its really tight and seems to be making it go on cross threaded if I pushed it? the threads are perfect bar the first one :(
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If its a pedal thread that needs clearing, do as below but be careful as you do as you might find the chrome will crack :daumenhoch:
Other than that, get this http://cgi.ebay.co.uk/ROEBCUK-1-2-UNF-SECOND-TAP-20-TPI-USED-MINT-/220789441083?pt=LH_DefaultDomain_3&hash=item336813823b
I,m sure that pedals are 20TPI (20 threads per inch)
This will do the job better than risking fooking up ya pedal thread :daumenhoch:
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KK ;D was writing that when new post appeared :daumenhoch:
What size diameter is the thread ???
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havent a clue?
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if you have got or know any one with a buffer , theres a plenty of members on here with em one might be near by, use some first cut compound to tidy up the thread where the chrome has gone over , should be able to clean up the thread, tape the crank to protect the arm, finnish of with the normal other two compounds to shine up the the thread again