I'm trying to remove an older XTR crankset, which is basically the odd duck as far as Shimano cranks. It's Hollowtech, but has a self-extracting system.
Here's the relevant video (I have the correct tool).
The problem I'm having is that the crank is thoroughly stuck. I can loosen the inner bolt, but then it jams against the outer FC-35 and just gets stuck, rather than pulling the crank arm off. The self-extractor obviously doesn't have enough to handle a 6 year crank that's never been taken apart. For reference, I've tried both a 18" breaker bar and cordless impact driver.
Any suggestions for how to loosen the crank? Hammer? Heat?