gfxgfx
 
logo
 
gfx gfx
gfx
975806 Posts in 138943 Topics by 6363 Members - Latest Member: V6 DOW November 25, 2024, 05:46 AM
*
gfx* Home | Portal | Forum | Merchandise | Help | Login | Register | gfx
gfx
RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  crank arm repair
gfx
gfxgfx
 

Author Topic: crank arm repair  (Read 1769 times)

0 Members and 1 Guest are viewing this topic.

Offline steve69

  • Flip-Whip
  • ******
  • Posts: 1972
  • aka. Steve Changa
  • Rated:
crank arm repair
« on: October 15, 2010, 11:03 PM »
Hi all,

anybody had any sucess repairing worn alloy square taper crank arms i.e. sugino maxy/suntour vx

only slightly out on LH arm but you can feel it notch when riden :(
If there's air in the tyres... it's a rider

Offline boofy44

  • Flip-Whip
  • ******
  • Posts: 2120
  • Rated:
Re: crank arm repair
« Reply #1 on: October 15, 2010, 11:29 PM »
probably easier to make some small shims or shim.wouldn't of thought you
could sort the actual arm out.

stevied

  • Guest
Re: crank arm repair
« Reply #2 on: October 16, 2010, 10:49 AM »
chop up a bit of coke can or baked bean can and wrap it around the spindle  :daumenhoch:


bof

  • Guest
Re: crank arm repair
« Reply #3 on: October 16, 2010, 12:11 PM »
A peice of tape measure would make a better shim than a coke can . :daumenhoch:

Offline Peter J

  • BMX Nerd
  • *********
  • Posts: 4993
  • I have issues
    • http://www.sumoservices.com/
  • Rated:
Re: crank arm repair
« Reply #4 on: October 17, 2010, 07:01 PM »
I had the same problem on a set of maxy cross's

I took it to a company I know who did broaching (cutting square holes) their adivce......................shim it  :daumenhoch:

Becuase of the age of the alloy + its forged alloy + the cost of broaching it would be  :uglystupid2:

You can buy shim steel but to be honest........I had "coke can" shims in em for about 6-8 months and with my 19 stone bouncing on them the were still nice and tight when I sold em  :daumenhoch:
I might actually build a bike this year instead of just hoarding parts :)

Offline QUADROPHENIA

  • Site Supporter
  • Berm Worm
  • *
  • Posts: 7690
  • Rated:
Re: crank arm repair
« Reply #5 on: October 17, 2010, 08:12 PM »


wouldn't bother, it aint as tho your gonna ride it  ::)

Offline steve69

  • Flip-Whip
  • ******
  • Posts: 1972
  • aka. Steve Changa
  • Rated:
Re: crank arm repair
« Reply #6 on: October 17, 2010, 11:03 PM »


wouldn't bother, it aint as tho your gonna ride it  ::)
Cheers for that Pete :yahoo_silent:

next time your down my end give me a shout and i'll put some 'shopper' tyres on one of my bikes and come and play.
(it didn't help that i was coming home from a night out and feeling like  :buck2:)
If there's air in the tyres... it's a rider

Offline steve69

  • Flip-Whip
  • ******
  • Posts: 1972
  • aka. Steve Changa
  • Rated:
Re: crank arm repair
« Reply #7 on: October 17, 2010, 11:10 PM »
Thanks for everyone else's replys

I was thinking the shim route but didn't know if there were any other ways of doing it
i.e. squaring it up and putting a washer on the front to force it further on the taper :-\

so thanks  :daumenhoch:
If there's air in the tyres... it's a rider

RADBMX.CO.UK  |  Technical & Reference Section  |  Tech and Restoration  |  crank arm repair
 

gfxgfx
gfx gfx
Powered by MySQL Powered by PHP Valid XHTML 1.0! Valid CSS!
SimplePortal 2.3.5 © 2008-2012, SimplePortal