When should I replace my Yamaha outboard impeller?
As a general rule, inspect the impeller and water pump assembly every year if operating in salt, brackish or turbid water, and replace if necessary. The debris in these waters acts like sandpaper.
How long do Yamaha impellers last?
I’ve found that Yamaha impellers are good for at least three years and usually will go five. But, they are cheap and easy to swap, so I generally do ’em at three year intervals.
How many hours 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.
How often should outboard motor impeller be replaced?
three years
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.
Can you run a Yamaha outboard out of water?
You can run an outboard for a very short time out of water, but the impeller is running dry and will shred very rapidly.
How often should I change my water pump impeller?
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. However, if you’ve noticed persistent problems keeping your engine cool, you may need to replace the water pump completely.
Why do impellers fail?
The top 3 most common causes for impeller failures are due to cavitation, erosion and corrosion.
How often should impeller be changed?
Generally speaking a 5 year interval likely works well for most folks. TomP. 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 deep should a boat motor be in the water?
If you have a short shaft motor, the top most part of the transom and the lower most part of the boat should be about 15 to 16 inches. For a long shaft, I think 20 to 21 inches is correct.