I can't get my harmonic balancer off of my 49 216. I've used a harmonic balancer/steering wheel puller and the only thing i've accomplished is breaking a bolt off in the pulley. i think i can get what's left of that bolt out through the back side. Anyhow, what can i do to get it off? I'm lost. I'm pretty sure of how it SHOULD come off... but it's just not happening.