I know the ctr pulley questions are freakin old and ridiculous....but I'm not asking if its safe or tell me how many of you have it on your car. No.....see my question is where would someone take a ctr pulley to check for balancing? I don't think you're average everyday machine shop does stuff like that. Just like to hear if any of you would know the answer to this so i can get this done and prob answer a huge question and end some debate on this. Plus I'm about to go ahead and put one on my car.

Thanks to Passwordjdm for crank pulley for an awesome price

 

Any machine shop can do it.

But the problem is not if it is rotionally balanced. The question is if it has a HARMONIC BALANCER.

The harmonic balancer is a highly compressed peice of rubber sandwhiched in the pulley, that absorbs harmonic frequencies in the crank (kinda like a shock absorber for your crank).

It has nothing to do with if the crank is rotationally balanced or not.

 

ok...cool..so no real need to take it to a machine shop they couldn't fix anything or check for harmonicly balanced or not. i guess the only way to check would be to cut one in half and look wouldn't it?

 

No they couldn't do anything in terms of a harmonic balancer.

There is for a fact no high pressure rubber injected into that pulley.

The debate is about if the high pressure rubber really acts as a harmonic balancer (or if it simply takes out harshness and vibration to the cabin), or if it is really needed (ie: running with out one causes damage or not).

I don't think we will ever have a definitive answer.