I'm stripping an old bike at the moment before it goes off to be powder coated...and I'm struggling with the cranks and BB.
All of my current bikes use hollowtech / external BB's but this one uses an internal BB.
I've removed a bolt that I assume is holding the crank arms onto the BB axle ...it's a square axle. There doesn't appear to be anything else holding the crank arms on, but I can't get them to move at all.
They might have corroded on, but before I start tackling that problem with penetrating fluid and some large hammers, I thought I'd check if I should be doing anything else.
Turning to the BB, there's a thin metal ring up against the frame - that unscrews easily...and assuming I can get the crank arms off, how will I get the BB out? Any special tools needed?
I have a few photos I can send if anyone would like to see them.
Thanks, smurf
Sounds like you need a crank extractor tool to get the cranks off and a bb removal tool to get the bb out.
Simon is correct, you'll need a crank remover tool:
http://www.wiggle.co.uk/bbb-btl-14-powerpull-crank-puller-tool/
This pushes the crank away from the square taper spline.
To get the BB off you'll need a different remover from your hollowtech tool:
http://www.wiggle.co.uk/lifeline-performance-cartridge-bottom-bracket-remover/
That works on most shimano BB's but check first.
this thread makes me feel old.
something like this to get the crank off ...
http://www.wiggle.co.uk/pedros-universal-crank-remover-with-handle/
And this to get the BB out ... be warned there are several spline
patterns !!
http://www.wiggle.co.uk/shimano-bottom-bracket-removal-tool/
Thanks all - I'll check out the tools and order something this evening.
Quick update...the BBB crank puller from wiggle worked a treat. I also got a BBB BB tool and that worked a treat as well.
One side was a pig to remove but the other came off pretty easily.
Thanks for your advice guys
