[Closed] Crank Removal Problems -XTR M970

Bigger 8mm Allen key in the tool.

I have bent the biggest Allen keys I can get in the whole

Stick an old handlebar on the end of one to get extra leverage. Never seen one of those be problematic.

I'm in Stroud you you want a look!

remove tool and ride around the block with no bolt in and see if it loosens the arm on the splines?

Tool is stuck in the axle as I stated above.

Just broken an Allen key using the handlebar trick

Bit confused as the tool threads into the inside of the crank arm rather than the axle
Could you try to slightly tighten the 8 mm Allen key then remove the tool once some of the tension is off it

Yeah tool threads into the LH crank arm, the alu bolt threads into the axle.

[url= http://www.chainreactioncycles.com/shimano-xtr-left-hand-crank-removal-tool-m970/rp-prod25630 ]Should be this tool[/url]

screws into the crank arm, then you undo the bolt acts as a puller, usually very simple to do 😀
The pins are to unscrew the plastic insert which keeps the threads clean.

doesn't the tool have a reverse thread on it - you are undoing it the right way?

This happened to me once. Can be a bugger to get out. I think i ended putting the crank in a chunky vice at work and using a massive pipe wrench which was a tricky procedure. As you've discovered, with the small hole in the tool you can't get a big enough screwdriver/allen key through to generate the leverage.

I had managed to get the crank off already, just had the tool stuck. I also replaced the bolt as that had deformed being so soft.

Best of luck!

Sussed the problem now, need to get the tool out somehow now

LH thread on the tool. Stick a small Allen key in the hole on the side to help turn it if necessary.

I find these a bugger to take off. I just knock the crank arm off with a rubber mallet now. Even following the you tube video mine never feel happy with the extractor bolt

All sorted now, thanks guys