How often should you change water pump on outboard motor?
It’s good outboard maintenance practice to check your water pump impeller every season, and replace it every two to three seasons. 300 hours of use or every 3 years whichever comes first!
How often should you change the impeller on a outboard motor?
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 do you change the water pump on a Yamaha outboard?
Grease the driveshaft and the inner core of the impeller with marine grease, and slide the new water pump impeller down over the driveshaft. NOTE: Make sure the notch in the underside of the impeller is seated over the woodruff key as you slide it down against the metal plate.
When to replace the impeller on a Yamaha 90hp outboard?
Replacing your Yamaha 90HP outboard’s impeller is inexpensive, and gives you at least a year of not worrying too much about the water pump failing on you. These parts are for a 1999 Yamaha B90TLRX outboard model. Water pump repair kits and impellers for all other Yamaha outboard motors are available here on Boats.net.
How often should a water pump be replaced on an outboard engine?
If you own an outboard engine, chances are sooner or later you’ll need a new water pump impeller. And the chances are also good that it’ll come sooner—not later. Some manufacturers, like Yamaha, recommend that you inspect the impeller every year and replace it every two to three seasons.
How do you change a water pump impeller?
Use a flat-head screwdriver to help pop the housing free, if necessary. Now you can reach the parts you need to replace: the bottom gasket, base-plate, impeller, key, and cup. If you’re just doing an inspection, look for a “set” (bending) in the impeller vanes, damage to them, or any melting or scoring on the cup.
Grease the driveshaft and the inner core of the impeller with marine grease, and slide the new water pump impeller down over the driveshaft. NOTE: Make sure the notch in the underside of the impeller is seated over the woodruff key as you slide it down against the metal plate.
Replacing your Yamaha 90HP outboard’s impeller is inexpensive, and gives you at least a year of not worrying too much about the water pump failing on you. These parts are for a 1999 Yamaha B90TLRX outboard model. Water pump repair kits and impellers for all other Yamaha outboard motors are available here on Boats.net.
How to install a 40hp outboard motor water pump?
Set the unit upright in the vise and close the jaws just enough to hold the unit in place. Locate the water pump, a plastic housing that sits atop the lower unit, completely surrounding the driveshaft. Remove the bolts at its corners with a socket wrench. Lift the housing to the top of the driveshaft and remove it.
How often should I replace my outboard water pump?
As a general rule of thumb, the water pump impeller should be replaced every other season. A water pump repair kit is available for almost all outboard models. For steps requiring lubrication use BRP Triple-Guard Marine Grease or Mercury 2-4-C Marine Lubricant. Remove the bolts that attach the lower unit to the midsection