smallville8vdm Posted September 6, 2017 Share Good day all, Need advice on where i can repair my Crank. The thread has stripped where you insert the pedals. CPT area. Dankies Link to comment Share on other sites More sharing options...
madmarc Posted September 6, 2017 Share You need to find a LBS or engineering company with 9/16" X 20 TPI tap. Right hand and left hand. The left hand is where the problem is, not many people have such an animal. Also depends on how bad its stripped, sometimes a cleanout with a tap will fix it enough for the pedal to tighten, If its moertoe then you need a special bushing kit ParkTool sell them. In my opinion probably faster and cheaper to look for a new crank Link to comment Share on other sites More sharing options...
FirstV8 Posted September 6, 2017 Share Will a Helicoil not work as a quick fix . http://www.ebay.com/bhp/helicoil-kit . I have done many motor repairs with them and never had a break down with those parts again . Link to comment Share on other sites More sharing options...
Traveler Posted September 6, 2017 Share Have a helicoil inserted. http://www.boltit.co.za/p/297951/click-to-view-inserts-self-cutting-helicoil-wood-inserts-etc https://community.bikehub.co.za/topic/119927-where-to-get-a-helicoil-fitted-in-cape-town/ Link to comment Share on other sites More sharing options...
V12man Posted September 6, 2017 Share Ping Droo. Sure he can sort it for you. Link to comment Share on other sites More sharing options...
smallville8vdm Posted September 7, 2017 Share You need to find a LBS or engineering company with 9/16" X 20 TPI tap. Right hand and left hand. The left hand is where the problem is, not many people have such an animal. Also depends on how bad its stripped, sometimes a cleanout with a tap will fix it enough for the pedal to tighten, If its moertoe then you need a special bushing kit ParkTool sell them. In my opinion probably faster and cheaper to look for a new crankJust a shame it is a brand new crank.... dont ask... Link to comment Share on other sites More sharing options...
Bomberman Posted September 7, 2017 Share Just a shame it is a brand new crank.... dont ask...Left or right crank arm?. Had the same problem, I just took it to a engineering shop and they made a insert for me. n Bietjie pratly steel and it worked Link to comment Share on other sites More sharing options...
smallville8vdm Posted September 7, 2017 Share Left or right crank arm?. Had the same problem, I just took it to a engineering shop and they made a insert for me. n Bietjie pratly steel and it workThe Driveside. Dont know if that is left or right. Link to comment Share on other sites More sharing options...
madmarc Posted September 7, 2017 Share The Driveside. Dont know if that is left or right.That would be a right hand thread then, so not such a big trainsmash. As I mentioned above it might not be badly stripped and simply needs to be cleaned by chasing a tap through it. If the peddle still doesn't tighten then you be needing to have this done http://www.parktool.com/blog/repair-help/pedal-bushing-repair-kit-procedure Any self respecting LBS should have the kits and be able to repair the crank. Link to comment Share on other sites More sharing options...
dave303e Posted September 7, 2017 Share Don't bother with a helicoil. Dril it out, tap the larger hole and put a thread insert in. https://www.ezlok.com/online-catalog/inserts-for-metal/stainless Link to comment Share on other sites More sharing options...
Dinesh31c Posted October 9, 2017 Share Hi all I have the same problem on my left hand side Crank. The thread has stripped where you insert the pedals. Thread are completely worn since pedal has become loose. Any assistance in Jhb area. Kind regards Link to comment Share on other sites More sharing options...
madmarc Posted March 24, 2022 Share So I have a tool fetish and had to do it - Little trip to Germany and while ordering stuff online I threw in some pedal saver tools - Repaired my crank - It actually works exceptionally well. R & L reaming taps & inserts Lining it up with old pedal shaft on drill press (Dunno why this site rotates the pic so tilt your head to the right. it is a right hand crank afterall) Getting it started Finishing off in the vice Looking good Perfect thread cut Precision fit Need to get RED LocTite before final assembly Frosty, DJR, ChrisF and 1 other 4 Link to comment Share on other sites More sharing options...
Jewbacca Posted March 24, 2022 Share 6 minutes ago, madmarc said: So I have a tool fetish and had to do it - Little trip to Germany and while ordering stuff online I threw in some pedal saver tools - Repaired my crank - It actually works exceptionally well. R & L reaming taps & inserts Lining it up with old pedal shaft on drill press (Dunno why this site rotates the pic so tilt your head to the right. it is a right hand crank afterall) Getting it started Finishing off in the vice Looking good Perfect thread cut Precision fit Need to get RED LocTite before final assembly NICE!!! Got any spares? I have a non drive side crank arm thread that needs one of these urgently... Link to comment Share on other sites More sharing options...
Frosty Posted March 25, 2022 Share I have to do the same with a pinch bolt on my left-side crank (PM) - I'm hoping a tap will fix the problem, and I don't need a heli-coil. Link to comment Share on other sites More sharing options...
ichnusa Posted March 25, 2022 Share 19 hours ago, madmarc said: So I have a tool fetish and had to do it - Little trip to Germany and while ordering stuff online I threw in some pedal saver tools - Repaired my crank - It actually works exceptionally well. R & L reaming taps & inserts Lining it up with old pedal shaft on drill press (Dunno why this site rotates the pic so tilt your head to the right. it is a right hand crank afterall) Getting it started Finishing off in the vice Looking good Perfect thread cut Precision fit Need to get RED LocTite before final assembly I love threads (pun intended!) like this! DieselnDust 1 Link to comment Share on other sites More sharing options...
JodyH Posted September 12, 2022 Share Is there someone in the JHB are that can assist with doing this? Or know where I can buy a kit to do it myself? I've also managed to strip the treads on the crank Link to comment Share on other sites More sharing options...
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