ok so here it is.. I had a friend rebuild my blown 4.3 mercruiser, which had its ups.. and a lot of downs.. I had the starter replaced, ignition coil, drive aligned, and the boat turns over perfectly... with no spark, I thought it was the ignition coil, so I replaced it, but to no avail.. still no spark. I'm at a loss.. I'm not a genius with engines.. hence the friend rebuild, but when I was just messing with it the distributor is rotating freely, would this cause the no spark or just crappy running, and please... how do I fix this.. the boats been dry for almost the whole summer
