Was driving back home on the boat and there was smoke from the engine compartment and out of the transom. Have a chevy 5.7 with a mercruiser aplha 1. I think the boat is and 03 22' Tahoe. The engine would start and run intermittently but does not engage into gear, just dies. The engine looks good, no oil leaks, sounds ok compression wise may have blown the outdrive not sure how to check to be sure if it is blown for sure though or where to find one to replace?
possibly overheated and melted the shift cable casing causing the interrupt switch to engage when going into gear
if you suspect the drive to be the issue pull the boat from the water and pull the top cap to quick check the upper gearset, otherwise pull the drive and inspect the coupler - was the lube monitor empty/sounding alarm??
Sometimes when people try to save a penny, they end up spending a dollar
It is best to fully understand how to properly operate, inspect, troubleshoot and repair your equipment