Ive been trying for 2 days to remove a stuck idler pulley from a 3/4 shaft on an old horizontal cast Kohler. Unfortunately I cant get my gear puller behind it so i doused it in liquid wrench and stuck an open end wrench on top of the shaft behind the pulley and attached the gear puller to that. So far I have bent two wrenches and havent budged the pulley. Im wondering about heating the pulley but all I have is a propane torch and Im not sure if it will heat it fast enough. Any ideas...this thing is driving me crazy!