How often should you change impeller on Mercury outboard?
How often should you change impeller on Mercury outboard?
In most cases, you won’t need to replace the water pump unless the housing is damaged. Instead, replacing the water pump impeller every three years or sooner should avoid most water-pump-related issues and keep your outboard running in excellent condition.
How often should the impeller be changed in a lower unit?
All impellers should be changed at a minimum of three years. Some will not make it that long depending on many things, how often it is used… too little and it will deform and tend to dry rot. Use it alot and it will wear out from spinning around in it’s housing.
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 much does it cost to replace a water pump on a Mercury outboard?
Mercury Mariner Water Pump Replacement Cost Estimate. The average cost for a Mercury Mariner water pump replacement is between $449 and $595. Labor costs are estimated between $176 and $221 while parts are priced between $273 and $373.
Why do impellers fail?
Abrasive sandlike material can cause the impeller to wear out faster. Impellers can also wear out by becoming stiff and brittle due to the motor sitting unused for several seasons or being exposed to heat. Water lubricates the impeller, and if it’s run dry, the impeller can be ruined in a few seconds.
How often should you change the water pump impeller on a Mercruiser?
Mercury recommends changing impeller every 3 years.
How do you know if you have a bad impeller?
When the Outboard Shows Signs of Overheating. Anytime your outboard motor’s water temperature begins to climb, that’s cause for concern. If the motor ceases to produce a steady stream of water after reaching its normal operating temperature, the impeller is one of the two most likely causes.