Harmonic balancer??

I'm not sure that I understand your issue...

What timing cover, radiator, and water pump are you using and in what vehicle???

If I know what you have and where you need to go, I may be able to offer a suggestion and help you from going down the wrong path...

Pictures would be very helpful if you can post a few...


What side of the timing cover are your timing marks?

What year and model vehicle is it in?

What radiator are you running? the 60's style or 70 and later?

What water pump do you have, aluminum or cast iron?