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So:
- the tool is not slipping
- you are putting loads of leverage (pushing down towards the front wheel)
- the wheels are still on the bike (as in you are not doing it with the frame on a bike stand)
It sounds like you need a second person to hold the bike while you increase your leverage.
- the tool is not slipping
Vince-
Slippage is not my issue. I'm pulling up from the back, towards the front, so the right way. I've tried nipping it tighter too, just to induce movement.
I really think force is not the issue (I know more force should work) but the frame is flexing, my breaker bar / nut interface is flexing, soon something gonna snap.
I think I need it to move under my current force, hence asking about penetrating oil and other things that could loosen it.
To answer my question, do you all think penetrating oil won't help?
Scrabble
I dont have a sturdy enough vice to hand. I have managed to produce A LOT of leverage. Much more, and I wont be able to reach the end of the pole I'm yanking on (not a euph) while still standing on the chainstay to support the bike. The issue is that the BB has become somewhat one with the frame.
TBH, I'd be amazed if the threads survive the extraction. As the BB is still sort of usable, I may give up. I just have nicer cranks to go but they take a hollowtech BB.