Removing cranks without a crank puller?

how can i get to the crank with a hammer? do you do it through the
spokes somehow?
i would have experimented with it, but i dont want to mess anything up.

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Unitik908 said:

well do as i do, gently beat it with a hammer..

Chase

... good luck hitting the crank w/ only a hammer... you need some kind
of punch to go through the spokes and if you don't want to scratch the
cranks put a small board between the "punch" and the crank ... and hit
as close as you can to where the crank meets the axle ... i have posted
about this before... and it may help to hold the crank/pedal off the
ground by putting the wheel on your legs

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a big bolt usually works as a "punch"

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haha..man this is a tough choice.
i will go take a look at it. see if i think i can do it. if not..then
the guys at the shop will be seeing me bright and early tomorrow.

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Daytripper63 said:

The safest way to do it is: DONT do it! no matter how bad you want the
new cranks on , are you willing to risk damaging your uni and still not
getting the cranks off and still have to go to the local bike shop...

I have never had a problem w/ the way i do it

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Use a crank puller. The less extra impact and wear you put on your hub,
the better. Plus it's so much easier. Be patient, wait till your shop
opens, then go buy a puller, and you never have to wait again.

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skroboskim said:

I have never had a problem w/ the way i do it

I'm going to echo what madmatt said. You might not have a problem the
first time you use a hammer, or the 2nd, but the process of using a
hammer applies forces to the hub and cranks at angles that could cause
the metal to deform, weaken, or even crack (microscopically).

Generally the hub is made of a metal that is harder than the cranks,
and the cranks are the first to deform... so you probably won't be able
to get a good fit from hammer-removed cranks after the first or 2nd
removal. Weakening your hub is never a good thing... especially a
square-taper hub. It's like playing russian roulette... you'll never
know which big drop will lead to a disasterous hub failure. Do you
really want to risk a bruised pair of 'nads?

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