Can I shim the harmonic balancer

1WildRT said
If you can make a accurate shim that has the proper bore diameter and with both sides parallel then it'll be fine.. If your shim doesn't make full contact with both the crank gear and the balancer I wouldn't do it...

but if you shim the balancer the crank' pulley will then be further forward so all the other pulleys will then need shimming forward too.