Stuffy box EVO

Stuffy Box For Sealing the Shaft hole
Before installing stuffy box the water inlets of the sterntube must be free. When engine is running, the water must reach the stuffy box in order to lubricate it. The stuffy box most be mounted below waterline. The minimum lenght of the part of sterntube where the stuffy box will be placed, must be at least 38mm.
Stuffy box should be replaced at least every 4 years or after 500 working hours