Problem with aftermarket crank pulley

I bought an aftermarket crank pulley for My 51 to-30 and I have oil coming from between the crankshaft and pulley, it is not coming from around the timing chain cover seal. I put my broken original pulley back on to try and it did not do it. I am looking for an original pulley and I am in Godley texas anyone know of one I am willing to drive to get it if it is not to far this weekend. Thanks
 
If you don"t find an original one, put some silicone on the inside of the pulley and in the key way before you install it. Lots of harmonic balancers on cars and truck are done this way because if you don"t they will leak oil from the key way and between the crank and the inside of the balancer.
 
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