Beast Tech Posted March 3, 2015 Posted March 3, 2015 On the weekend I kind of forgot to check my pedals were screwed in properly. So after some riding I completely trashed the inside thread of my crank arm... I really love my crank and don't want to see it go. So was wondering if a shop could perhaps retap the thread?
Clayton Blackler Posted March 3, 2015 Posted March 3, 2015 I have a tap set for crank arms but I am in Durban
HeyYou Posted March 3, 2015 Posted March 3, 2015 Have a look on this pagehttps://community.bikehub.co.za/topic/46935-retro-bicycle-thread/page-199 There's a tool available, but maybe not locally. You can try QuintonB (on the HUB), he may have a tool, tap, to help.
Beast Tech Posted March 3, 2015 Author Posted March 3, 2015 Sorry just need to clarify maybe explained that wrong... It is the thread where the pedal goes and not the thread to remove the crank
Sani Posted March 3, 2015 Posted March 3, 2015 It depends to what extend the threads are damaged , if there s to much thread lost , Re tapping will not help much as the pedal will be very loose in the crank arm , You will need to put a insert(bush) in the arm , So what happens is You will have to drill the crank arm bigger to insert the bush . Have a look at this http://www.parktool.com/blog/repair-help/pedal-bushing-kit
Beast Tech Posted March 3, 2015 Author Posted March 3, 2015 I wonder if a shop can do it, because that is exactly what I need. But I think buying that tool is a bit overkill for one fix... Lovely tool though
droo Posted March 3, 2015 Posted March 3, 2015 I think Dave Marshall has a helicoil kit, drop him a PM.
Sani Posted March 3, 2015 Posted March 3, 2015 I don't think They use Helicoils for this , They use solid inserts
Paul Ruinaard Posted March 3, 2015 Posted March 3, 2015 Just go to a motorcycle dealer - he will sort it out. And put your pedals on better...
trail - er - park Posted March 3, 2015 Posted March 3, 2015 Had same problem caused by poor workmanship at bike shop ... thread stripped totally. As suggested previously, the solution was to have an insert with a thicker thread on the inside of the crank axle and a thicker matching bolt manufactured. This solution was facilitated by Hubber "ROSHAMBO" through an engineering contact. The end result was incredibly strong ... probably stronger than the original. Give him a shout, he is based in Edenvale and may be able to arrange the same for you.
Stricker Posted March 3, 2015 Posted March 3, 2015 80% of Motor repairs shops/Exhaust/Suspension places will be able to help you.Do an insert
Beast Tech Posted March 3, 2015 Author Posted March 3, 2015 Thanks for the responses, Going to try a motorcycle shop or two tomorrow and see what comes of it... Learnt my lesson the hard way
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