[bobcowan]

I think you wasted your time and efforts by disconnecting the coil wire.

I suspect you actually did more damage than good, by cranking it so long at a low rpm - but I could be wrong.

All the data seems to indicate that pre-oiling the engine before starting decreases initial wear, and the engine will last longer. But, keep in mind that a well maintained engine will easily last 100-150K miles. How much longer do you need?