Hi, This ones been niggling me for a bit so I thought I'd ask. Many years ago I bought a crank removal too from halfords (The one you screw into the centre of the crank and then tighten the bolt in the middle to pull the crank arm off) and used it successfully for the job I bought it for. I then changed my chainsets and came to remove the new one for some reason. I did'nt look carefully enough at the bolt running through the centre of the tool and did'nt notice that it was to large for the bolt holes in the crank arms and it did'nt come to bear on the end of the tapered peg. The result was stripped threads. Is there any reason why this bolt should be too large ? I've always used road bikes, maybe it an MTB or BMX thing. Any help appreciated.
On Thu, 02 Aug 2007 12:34:28 GMT, "news.virgin.net" <[email hidden]> wrote, in part:
Quoted message said:
I did'nt look carefully enough at the bolt running through the centre of the tool and did'nt notice that it was to large for the bolt holes in the crank arms and it did'nt come to bear on the end of the tapered peg.
Did you remove the washer from inside the crank arm after taking off the fixing bolt? -- zk
On Thu, 02 Aug 2007 12:34:28 GMT, "news.virgin.net" <[email hidden]> wrote, in part:
Quoted message said:
Quoted message said:
I did'nt look carefully enough at the bolt running through the centre of
the
Quoted message said:
Quoted message said:
tool and did'nt notice that it was to large for the bolt holes in the
crank
Quoted message said:
Quoted message said:
arms and it did'nt come to bear on the end of the tapered peg.
I have come across this problem as well. At the shop I where work I have found two different sizes in bolts that push against the spindle. There is no difference in the threads that screw into the cranks. I did a number on a crank before I noticed a difference in size but I didn't strip the threads. I don't know why there are different sizes, I just make sure that I always use the smaller one.
On Aug 6, 2:26 pm, "[email hidden]" <[email hidden]>
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news.virgin.net said:
"Zoot Katz" <[email hidden]> wrote in message
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news:[email hidden]...
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On Thu, 02 Aug 2007 12:34:28 GMT, "news.virgin.net" <[email hidden]> wrote, in part:
Quoted message said:
Quoted message said:
>I did'nt look carefully enough at the bolt running through the centre of
the
Quoted message said:
>tool and did'nt notice that it was to large for the bolt holes in the
crank
Quoted message said:
>arms and it did'nt come to bear on the end of the tapered peg.
I have come across this problem as well. At the shop I where work I have found two different sizes in bolts that push against the spindle. There is no difference in the threads that screw into the cranks. I did a number on a crank before I noticed a difference in size but I didn't strip the threads. I don't know why there are different sizes, I just make sure that I always use the smaller one.
The bigger one is for pipe billet cranks - ISIS or Octalink.
The bigger one is for pipe billet cranks - ISIS or Octalink.
You work in a shop and don't know this? Scary.
I have never come across either of those cranks. We work on used bikes. Cranks like that haven't yet trickled down to the utility/ commuter bicycle lot.
As to why the shop has a crank puller for ISIS and Octalinks is beyond me.
