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What should the WOT rpm be on a 1979 Volvo Penta AQ255B (GM 350) with a aquamatic 280 outdrive? It is currently about 5000 at 4000 ft elevation. I'd like to gain some max speed for traveling long distances and am not too concerned about losing the ability to tow well or plane out quickly. I also...
1979 Bedouin Tri-hull with Volvo Penta 280 and GM 350 engine (Volvo Penta 255B engine). Water leaks out of holes on the belt wheel that also holds the impeller. At an idle, it's a steady drip and at high RPM, the water flows faster and gets flung up in a spray by the belt. I've attached a photo...
This is my first time posting on this forum. My grandfather passed away recently and left me two 20' boats with OMC electric shift stern drives, plus a third intermediate housing and third complete stern drive as spares. He had replaced all of the stringers and the deck on one of the boats and I...
