I installed a rebuilt alternator on my '49 3100 today. The alternator is your basic Delco Remy 63-amp 3-wire. After attaching the wire harness to the alternator, I'm now seeing a faint spark (short) at the battery terminal when I reconnect the battery. I'm guessing this is not normal but I thought I'd ask. When I remove the wires at the alternator, there is no spark (short) at the battery. Thoughts on how to fix this?