Removing crank arms

[dragnusa]

Ive been stripping some bikes for parts and Id really like to save the sprocket on this one. tried removing the crank arm from the non drive side. I took the nut off and tried everything I can think of to get the bolt out but it wont move. Any ideas?

 

[october]

http://www.ratrodbikes.com/forum/in...-cotter-press-the-easy-way.81697/#post-792821

 

[Bicycle808]

It's a cottered crank. You're best off using a press. Park used to make them, but they staopped. there's an expensive press at the bike smiths website. Or, you can go the DIY route, which someone just put up in RRB's "How-To" forum the other week. If you want to save the sprocket, it's more or less permanently attached to the DS crankarm.

Good luck. Rusty cotter pins are tough to dislodge.

 

[jerrykr]

I've looked at this at HF. It's about a foot tall.
I just don't have enough cranks to justify buying one.
I have used my bench vice - pressing the cotter into a socket.

http://www.harborfreight.com/1-ton-arbor-press-3552.html

 

[dragnusa]

http://www.ratrodbikes.com/forum/in...-cotter-press-the-easy-way.81697/#post-792821

Thanks for sharing the link, will have to sit the frame aside and try that sometime.

 

[Bendix]

if you want that ring for a one piece crank equipped project old sugino bmx chainrings are pretty darn similar.

http://www.ebay.com/itm/Old-School-..._Chainrings_BMX_Sprockets&hash=item3cdc268c5a


as 808 said, that old ring isn't removable/reusable anyway...


;-)

 

[dragnusa]

if you want that ring for a one piece crank equipped project old sugino bmx chainrings are pretty darn similar.

http://www.ebay.com/itm/Old-School-..._Chainrings_BMX_Sprockets&hash=item3cdc268c5a


as 808 said, that old ring isn't removable/reusable anyway...


;-)

Wasnt going to use it as a chain ring on a bike just as a accent piece for another bike project I have coming up.