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As a caution to others here who might read this, I wouldn't have used a torch if I was planning to re-use it, which your weren't. It's a two piece harmonic damper pulley, aka. harmonic balancer. It wouldn't take much to destroy the rubber bond between the inner and outer segment. If someone did use heat or excessive force with a puller on the outer edge then it would be a good idea to scribe a mark across both segments of the pulley and check it periodically to make sure they don't move out of alignment. If it's really badly gone you might hear screeching.
That pulley must have really been on. First time I had a stuck pulley I tried using a jawed puller and like you couldn't get a decent grip. Someone said to use penetrating oil overnight and then to just keep giving it a bunch of solid taps around the outer edge, but of course not to the point of damage, and much to my surprise off it soon came. I'm wondering if the pulley may have a slight taper inside. If you can strike the edge with the head at a slight angle it will encourage forward movement. Tensioning it like you did with any kind of puller is even better. Even a pry bar from behind would help tension it while you're tapping.
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Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now
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