Crank thread help please

[Taipan]

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

[MartyC]

Thread the pedal in from the other side that should help clean the thread out 

[oldtired]

pedal or bb thread?

[MartyC]

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  .

[Taipan]

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

[Gnarlyscoots]

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  

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  

[Gnarlyscoots]

KK  was writing that when new post appeared 

What size diameter is the thread

[Taipan]

havent a clue?

[oldtired]

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