How often should an outboard impeller be replaced?

How often should the impeller on a boat be replaced? It is recommended that a boat impeller be replaced every two to three years or 300 hours, whichever comes first. However, it is suggested to also visually inspect your impeller at the beginning of each season for any signs of wear or damage.

How much does it cost to replace impeller?

The impeller should run around $30/40 and take about 25 minutes or so. The hardest thing is getting the speedo tube back in place. Just apply greese on the bolts and impeller shaft and jog the propshaft and it should go smoothly. The last one I had put in my 50 hp Merc 4 stroke was about $125 installed.

What happens if your impeller goes bad?

If your impeller fails, the pump can’t pump cool water to the engine causing your engine to overheat. If you catch that your impeller is failing early on, you might avoid major problems. However, if you’re not fortunate enough to catch a bad impeller, the results can be catastrophic to your engine.

How long can you run a boat on muffs?

Bag and Muffs: Engine should be vertical, run no more than 800-900 rpm in neutral for 15 minutes with the prop removed. Be sure the engine is receiving cooling water (by checking the overboard indicator).

How long should an impeller last?

You should check the impeller’s condition during Spring Commissioning and every 200 hours of operation. Correctly installed impellers may last for several years, but you should stick to a schedule of preventative instead of emergency maintenance.

What is the impeller on a Mercury Mariner water pump?

14 Units which have already had a complete pump replacement with the 46-46893A 6 pump should use 47-22748 impeller.

What kind of water pump impeller do I Need?

Sierra 18-3062 Water Pump Impeller Sierra high-quality engine parts are designed to meet OEM specifications. Fits 6-15 hp 2 cylcle outboards w/ standard gearcases (0A197112 & Up) Fits 8/9.9 4-Stroke outboards (2004 & prior) w/ standard…

How many horsepower does a mariner outboard motor have?

Exhaust) 20C HP (Thru Prop. Exhaust) 25C (Thru Prop. Exhaust) 25C HP (Thru Prop. Exhaust) 40A (Above Prop. Exhaust) 40B (Thru Prop. Exhaust) 40B (CDI Ignition / Thru Prop. Exhaust)

What kind of water pump do I need for my Boat?

That’s why Wholesale Marine always suggests going with Mercury outboard water pumps with replacement Mercury outboard impellers to ensure a long lifespan for your boat’s engine. We have an extensive selection of full Mercury outboard water pumps, as well as the replacement parts and kits that go with it.

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