How often should you change impeller on Mercury outboard?

How often should you change impeller on Mercury outboard?

Mercury recommends changing the impeller every 300 hours…its in the owners manual. It’s an easy enough job to do yourself if you have some mechanical skills.

How often should impeller be changed?

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 often should outboard motor impeller be replaced?

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.

How do I know if I need a new impeller?

Ignore the symptoms of an impeller in need of replacement only if you wish to purchase a new motor.

• The Maintenance Schedule.
• When the Outboard Shows Signs of Overheating.
• A Reduced Stream of Water at the Cooling Water Outlet.
• The Impeller Has Been In Service for Three Years.

When to replace the impeller on a Mercury outboard?

Whenever you have to remove the lower unit from your outboard, it’s worth replacing the impeller, driveshaft and shift shaft oil seals in one go. Follow the steps below and watch the video above to learn how to replace the impeller and repair the water pump on a Mercury 200HP outboard.

How do you remove a water pump impeller on a boat?

Remove the four 10mm bolts securing the water pump housing, then remove the housing by sliding it up and off the driveshaft. Step 2. Remove the impeller and the woodruff key securing it against the driveshaft. NOTE: The impeller may come off with the water pump housing or may remain on the driveshaft.

When to replace water pump housing and impeller?

NOTE: The housing has a longer lifespan than the impeller, so it’s more likely that the impeller will need replacing but the housing won’t. However, any mechanical part will eventually become worn, so if you see any wear inside the housing, it’s time to replace it.

Can a Mercury 200xl Verado be replaced?

NOTE: We used a Mercury 200XL Verado, but the process is the same or similar for most outboard motors. NOTE: Before you can replace the shift shaft seals, you must remove the lower unit from the outboard. Watch the video below to see how to remove the lower unit on a Mercury 200.