I bought my own puller. It's now a shell of its former self, as the center hole is cracked and the arms are bent from massive amounts of torque straining to pull the stupid balancer off.
Of course you broke the tool. You have the yoke upside-down. The bolt heads should be thrusting against the FLAT side of the puller yoke, not the tapered side. The angled surface the bolts are pulling against is the reason the bolts bent.
You should have some grease on the pressure screw threads, too.
If there's anything left of the tool, flip the yoke the other way, assure that the puller bolts are threaded fully into the damper holes. Heat the damper and let 'er rip. When the pressure screw is TIGHT, remove the wrench and hit the pressure screw with the biggest hammer you own. Don't mess up the wrenching surface, but knock the end of the screw HARD, straight through to the crank--NOT SIDEWAYS. Tighten some more, hammer some more. At some point, the damper is bound to begin moving.
The pressure screw appears to have Acme threads. That's a good sign.
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