This process includes sealing off the gearcase of an outboard or sterndrive engine and introducing compressed air. The sealed unit is then monitored for stress loss over a selected interval. Any decline in stress signifies a breach within the seals or housing, suggesting potential water intrusion.
The importance of this diagnostic step lies in its means to proactively determine potential points earlier than they result in catastrophic engine failure. Water intrusion could cause corrosion of inside parts, harm gears, and compromise lubrication, finally leading to expensive repairs. Performing this check as a part of routine upkeep or pre-purchase inspection gives peace of thoughts and probably saves vital bills down the road.
