If you bought a used boat, with the Alpha One, 4.3L engine and it was a 1993 and you had no knowledge of the maintenance records, what would be the most important things to replace/repair/look at?
Don't forget the drive shaft bellows.. The Alpha's are very good units. I assume the water pump in the previous email was referring to the lifter pump (Impellor pump) in the drive unit, not the circulating pump on the front of the engine.