Harmonic balancer / Pulley problems w/ blower

[S&B]

so to catch you up, i broke the snout of my old crank shaft and part of the reason was the YSI supercharger. I got the car all fixed and today I was out and bam shredded belt and the pulleys moved forward slipped off the key I assume on the shaft. Does this make sense? or if the pulleys moved forward did I break another cranck shaft?

I took some pictures of the problem , what do you think about my harmonic balancer is the key chuck too wide? let me know, im begining to loose it with this setup its always and I mean always something.

snout

Harmonic balancer

any ideas welcome

 

[BlownFiveLiter]

What type of balancer are you running on there? If it's a Romac, they sometimes need the inside diameter to be honed out slightly, so they can slip over the crank snout easier. It'd still be a press fit, but it just might be a little too tight, so it's not fully seating and throwing off your pulley alignment.

 

[S&B]

what kind should I buy?
I need a new one

it is a romac, on the unit you can see in the key slot that it was under great force becuse its pushed in and the metal is bulged

 

[BlownFiveLiter]

When I was looking, I just went by price and whether they were a known, good manufactuer. Some swear by Romac, Pro Products, TCI, ATI, whatever. Probably more of a preference thing, going on brand. I picked up a Pioneer SFI balancer for around $179ish, IIRC. The price was right and I wanted it to be SFI certified.

 

[S&B]

i cant find them anywhere for 179 there all 300+ on summit.
Maybe I Will take this one in and have it honed out a bit. Do you think I should replace the key?

 

[BlownFiveLiter]

This is the one I put on my 95: Pioneer Automotive 872030 - Pioneer Race Balancers

Replacing the key might not be a bad idea either, if it's out of shape now. Keep in mind that this is a 50oz balancer, too. I don't know if you're putting this on a 50oz balance. I was just using this as a reference.

 

[S&B]

I have a neutral ballance but i will find it. thanks for the help