so i removed the crank bolt and washer but there is a funky looking collar with notched out side still on i thought it would slide off so i put a pulley puller on and pulled and pulled and think i broke the front pulley from the other two as in broken.. so i stopped and that pulley is loose but wont come off the crank due to that damn weird collar. does that collar thread on?? somebody has to know this one its just not me