Join Date: May 2005
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If you get a newer PSS, they have a air valve with a hose on it to release this air for slower RPM moving rigs. Make sure this air tube is properly installed, or you will have trouble with a siphon effect. I had this the first time sailing with my pss 2 yrs ago. The prop started to turn while sailing, so this created a siphon, and water started to come in via the tube. I was able to pinch the tube off with vise grips and stopped the issue, but not before 20-30 gals of water was in the bilge of the boat. I reread the directions, and the yard that installed the pss, I think it was the first one with this air release! They did not o it quite correct. I fixed it and no issues since.
If the motor is idling rough, there can be spurts of water coming out of the shaft, along with if you pull the rubber seal back ward water can come into the bildge.
From my own experience, the PSS is wetter than a drip style.
She drives me boat,
I drives me dinghy!