How do you get off a crank with a stripped thread?

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NATURAL ANKLING
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Re: How do you get off a crank with a stripped thread?

Postby NATURAL ANKLING » 12 Jul 2014, 5:02pm

Hi,
CJ wrote:
bigjim wrote:... aluminium goes soft as it ages ...

Nonsense. What happens is aluminium corrodes/welds onto steel, with time, absence of corrosion inhibitors and exposure to dirty water. Eventually the strength of the bond exceeds the strength of the thread.

It helps to put a very light smear of Copaslip (or Alumslip is better if you can get it) onto the axle before fitting.

Shimano recommend that on all tapered crank arms :?:
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borderghost
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Joined: 24 Mar 2015, 8:14pm

Re: How do you get off a crank with a stripped thread?

Postby borderghost » 29 Mar 2015, 7:24pm

Another vote for riding bike with the crank arm bolt removed, never had the correct tool at the time, had to ride for a good 10 miles before it came loose.

youngteam
Posts: 25
Joined: 16 Mar 2013, 12:57pm

Re: How do you get off a crank with a stripped thread?

Postby youngteam » 7 Apr 2015, 7:47pm

I've used drill chuck wedges for this exact problem in the past, something like http://www.arceurotrade.co.uk/Catalogue ... ges-Drifts

YMMV

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Paulatic
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Re: How do you get off a crank with a stripped thread?

Postby Paulatic » 7 Apr 2015, 7:56pm

I've had success with a ball joint separator tool in the past.Image
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