Take the whole pump out, because if you think getting at the pump is fun, wait until you try to get the new impeller in the pump housing Make sure to apply some liquid dish soap to the impeller and internal of the pump housing so it has some initial lube when you start the engine. Scott Danforth
Full Answer
Does a Bravo One have an impeller?
No a Bravo does not have a impeller in the drive, and neither Alpha nor any other boat impeller "sucks". The impeller moves water from one side to the other. This is a reason you cannot run a drive in a bucket or drum. Some do this with the Alpha but even then the impeller is running somewhat dry.
How do you replace an impeller?
1:303:29How To Replace A Pump Impeller - YouTubeYouTubeStart of suggested clipEnd of suggested clipUnscrew the impeller from the shaft. Remove the o-ring from the shaft. And insert a new o-ring.MoreUnscrew the impeller from the shaft. Remove the o-ring from the shaft. And insert a new o-ring. Apply anti-seize to the impeller threads.
How often should MerCruiser impeller be replaced?
every three yearsMerCruiser impellers should be replaced every three years.
How long does it take to change an impeller?
The Raw Water Pump Changing an impeller is not a daunting task and it's one that every boater should consider adding to their arsenal of DIY maintenance. Changing an impeller, on many engines, usually takes less than 20 minutes even if you are fairly slow.
How do you know if you have a bad impeller?
It's usually pretty obvious to see wear and tear but look for cracks, bends, and melted rubber. Engine overheating. Make sure to check your temperature gauges often if you believe you have a bad impeller. 160°F (71°C) is the hottest gasoline engines should run.
What happens when 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 does Mercruiser impeller last?
Merc recommends 300 hrs or 3 years (more often if overheating occurs or reduced water pressure is noted). Re: How often should a water pump impeller be changed? If you run in skinny water, and a good chance you got sand in the engine, they say every season.
How do you remove a water pump impeller?
0:001:31Water and Semi-Trash Transfer Pump Impeller Replacement - YouTubeYouTubeStart of suggested clipEnd of suggested clipUse a 2x4 and a hammer and firmly knock the impeller counterclockwise to loosen it then carefullyMoreUse a 2x4 and a hammer and firmly knock the impeller counterclockwise to loosen it then carefully remove it from the engine and pump base. Step 3 install your new impeller. And twist it on clockwise.
Do stern drives have impellers?
Inboard and sterndrive engines usually include a flexible impeller type raw water pump.
Is a water pump and impeller the same thing?
The heart of the cooling system of your vehicle is the water pump, and as a key part among its components to carry out its function, there is the impeller.
Where is a boat impeller located?
0:007:28How to Change Out Your Impeller on Your Boat - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt all around the engine to keep it cool and then shoves.MoreIt all around the engine to keep it cool and then shoves.
What's the difference between a propeller and an impeller?
Impeller: the rotating part of a centrifugal pump or mixer, compressor, or other machine designed to move a fluid by rotation. Propeller: a mechanical device for propelling a boat or aircraft, consisting of a revolving shaft with two or more broad, angled blades attached to it.
How do you change a water pump impeller?
1:355:12How To Change your Water Pump Impeller - PowerBoat TV - YouTubeYouTubeStart of suggested clipEnd of suggested clipTo remove the pump housing first remove the four bolts in a cross pattern to avoid warping theMoreTo remove the pump housing first remove the four bolts in a cross pattern to avoid warping the housing. Then carefully slide the rubber seal up and off the shaft.
What's the difference between a propeller and an impeller?
Impeller: the rotating part of a centrifugal pump or mixer, compressor, or other machine designed to move a fluid by rotation. Propeller: a mechanical device for propelling a boat or aircraft, consisting of a revolving shaft with two or more broad, angled blades attached to it.
Where is the impeller located on a boat?
0:007:28How to Change Out Your Impeller on Your Boat - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt all around the engine to keep it cool and then shoves.MoreIt all around the engine to keep it cool and then shoves.
How do you remove a water pump impeller?
0:001:31Water and Semi-Trash Transfer Pump Impeller Replacement - YouTubeYouTubeStart of suggested clipEnd of suggested clipUse a 2x4 and a hammer and firmly knock the impeller counterclockwise to loosen it then carefullyMoreUse a 2x4 and a hammer and firmly knock the impeller counterclockwise to loosen it then carefully remove it from the engine and pump base. Step 3 install your new impeller. And twist it on clockwise.
Can you buy strainers online?
There are some aftermarket strainers that you can Google and purchase online. I purchased a "Sherwood" brand, which I would advise against, as the clear bowl kept cracking. There are some other brands that are more durable.
Do Bravo 1 impellers have raw water pumps?
Re: Bravo 1 impeller. Bravo drives do not have raw water pumps in them, they are engine mounted. Only the Alpha drives had pumps in the drive. Look up your impeller KIT (you need the gaskets) for whatever engine you have. J.
