impeller heart - SPORTS
With the early style (short stiff vanes) impeller t does need to be replaced at an interval no greater than 2 years, but annual is best. Usually by the time you get the drive pulled apart and the impeller housing off, what with using new base plate gaskets anyway, you might as well replace it anyway. Peace of mind and cheap insurance.
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Chris..... Re: Grease for impeller? ^^ i have to agree! i install the impeller dry, into the housing, align the drive pin , and set the housing down over it.
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works every time. no need for "ease of installation'. How often to replace Bravo 3 impeller, very difficult job KD4UPL 1 2 Next K The impeller is a completely different animal to the impeller in an Alpha One.... Yes, Alpha One impellers need to be changed every other year, at least. But the Gen II impeller is a long vane or 'floppy' impeller and has a considerably longer life.
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Most will last the 3 years recommended service interval without any problem whatsoever. Re: OMC Adhesive M - Substitute - Impeller Gasket sealing compound, the gasket solution that has a small brush attached to its screw off cap, and the identical sealant replacing OMC Adhesive which is either Marprox Sealer 1000 or Boat Armor Sealer 1000 can be purchased at any automotive parts type store, perhaps even Wal*Mart, K-Mart, etc. Re: OMC Stern Drive Impeller removal I split my drive with it still attached to the boat. I lowered the bottom half with a floor jack and laid on my back to get at the pump. I used the exploded view as a guide. I bought genuine OMC parts from Crowley Marine.
The website has OMC exploded views of the drive. Re: Correct rotation for impeller The impellor rotates in and offset housing. On one side the fins get almost 100% straight and on the other side they get bend considerably. The bending action makes the space between the fins smaller forcing the water out into the cooling system of the motor.