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I tried a dreaded three-arm gear puller once. Didn't work with that one, unfortunately. The puller broke. Not ideal on a five-arm spider.
With this current crank I had tried liberal amounts of heat (to make use of aluminium's greater thermal expansion coefficient) and riding a good few km without a crank belt. No loosening joy was had.
I'm really happy about finding a tool with a centring guide - should be so much easier to cut the new thread properly and save the crank. I'm going to get a handy engineering friend to help.
lesterama
@infmz
I managed this once with gear/bearing puller. Bought a cheap set of three from screwfix... Cheap indeed as it didn't really fit around the 5 arms. After some manouvering and a bleeding lip (don't ask), the cranks came off.