Hi
Yup those puppies get stuck all the time (not just Subys). Some manufactures are nice anough to have threded holes, in the front face of the pully so we can use a small puller, as I said
some not all assholes...
Varnesh loctite forms after years of heatcycles, between the gear and crank/key. Try taking a propane torch and heat the gear, pry with a screwdriver in the rear (
), a little bit at a time in different positions around the gear, it will "pop" when it wants too, you will want to replace that crank seal, and unfortunately, sometimes the gears rear ring breaks. Sometimes they are just a little stuck, sometime they are damb near welded. Patience.
Good luck with it
Later