Removing Shimano 600 cranks
Hi
I've got an old Ribble road bike that I'm stripping and I'm having trouble removing the cranks. I've removed the outer bolts and I have the crank removal tool that comes with this(http://tinyurl.com/6xw9lc) tool kit.
I've read the Park Tools and Sheldon Brown guides to crank removal, but with no joy yet. I'd like to know of the tool is the right one and if I'm using it right or whether the cranks are simply stuck on (the seat post is seized solid!).
So far, I've attached the outer 'nut' of the tool to the dustcap threads and then screwed the inner 'bolt' in. It screws easily, then stops (hits the spindle?). From what I understand, if I then keep turning it, the crank should come off the spindle. Except in this case it, it doesn't. I've applied a fair bit of force but didn't want to go all-out in case the reason it wasn't working was because I'm doing something wrong.
The cranks are Shimano 600, but I don't know how old, perhaps mid-80's. The rear mech looks like this (http://tinyurl.com/5h8657) so perhaps someone knowledgeble can date the crank using that.
The bottom part of the tool 'bolt' can be removed using a small allen key - should I be doing that?
Any tips or tricks would be much appreciated.
I've got an old Ribble road bike that I'm stripping and I'm having trouble removing the cranks. I've removed the outer bolts and I have the crank removal tool that comes with this(http://tinyurl.com/6xw9lc) tool kit.
I've read the Park Tools and Sheldon Brown guides to crank removal, but with no joy yet. I'd like to know of the tool is the right one and if I'm using it right or whether the cranks are simply stuck on (the seat post is seized solid!).
So far, I've attached the outer 'nut' of the tool to the dustcap threads and then screwed the inner 'bolt' in. It screws easily, then stops (hits the spindle?). From what I understand, if I then keep turning it, the crank should come off the spindle. Except in this case it, it doesn't. I've applied a fair bit of force but didn't want to go all-out in case the reason it wasn't working was because I'm doing something wrong.
The cranks are Shimano 600, but I don't know how old, perhaps mid-80's. The rear mech looks like this (http://tinyurl.com/5h8657) so perhaps someone knowledgeble can date the crank using that.
The bottom part of the tool 'bolt' can be removed using a small allen key - should I be doing that?
Any tips or tricks would be much appreciated.
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Comments
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use a blowtorch to heat up the crank arms (3 or 4 mins each arm) aluminium has a much higher coefficient of expansion than the steel axle and it should then come off easily
i did this with my 'seized' cranks recently- the crank actually fell off the axle after being stuck fast and the heat didnt even mark the cranks'dont forget lads, one evertonian is worth twenty kopites'0 -
With the one-key fitting slightly loose, try cycling round the block a couple of times - nothing too rough though, the crank may come off any time.
Are you using a long-handled allen key?0 -
Thanks, the cranks are off. Took it to a mates, we applied some heat and put the arms in a vice to get better purchase with the tool. Best of all the seatpost is out too! Now only the manky bottom bracket remains. The tool in the kit does not seem to fit, so I may just take the bike to my LBS and get them to remove and replace the BB.
Cheers.0
