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.
How long do Yamaha impellers last?
All impellers should be changed at a minimum of three years.
How often should you change a water pump impeller on a outboard motor?
A boat impeller needs to be replaced if its fins are curved, cracked, melted, or worn out. Most marine engine brands recommend replacing impellers once every 300 hours or 3 years, but they should be inspected once every year. You may also need to replace your water pump housing every 300 hours as well.
How often should you change water pump on Yamaha outboard?
Changing the water pump on your outboard motor is an important part of your boat’s regular maintenance. You should change your water pump every 200 hours, roughly once every two years or every other 100-hour service.
How do I know if my water pump impeller is bad?
How to Diagnose a Bad Water Pump – YouTube
How hard is it to replace impeller?
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. The most complicated aspect of the task is physical access to the pump.
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.
What causes boat impeller failure?
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 do I know if I need to replace my 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.
What happens when boat impeller fails?
How do you lubricate an impeller?
Once water starts flowing through, this will lubricate them. Some manufacturers claim that oil based grease is bad for the rubber or other material of which the impeller is made and suggest using something like a dishwashing soap or other proprietary lubricant. Others say that oil based grease is fine.
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.
How do I know if I need a new impeller?
Should I put grease on impeller?
Many manufacturers recommend spreading a little grease on it. Spreading grease or lubricant (as the manufacturer recommends) on the face plate will help to avoid dry start up friction where the impeller moves against the plate. Often it is very difficult to get the old impellor out.
Can you use Vaseline on boat impeller?
1. Thoroughly clean out the impeller housing with a clean cloth and apply a good coat of petroleum jelly (Vaseline). If petroleum jelly is not available applying a lavish amount of dishwashing detergent will do the job.
What does a bad impeller sound like?
If the impeller looks corroded, you should recommend flushing and refilling the cooling system. Worn bearings also can cause a clicking or squeaking noise. Sometimes these can be heard with the engine idling.
What can I use to lubricate my impeller?
Should I grease my impeller?
You don’t need to use impeller grease/lube/jelly etc if you can get it in without it. Some impellers don’t come with jelly and people use soap and water to get the impeller in if it’s sticky. The lube you put on it comes off very quickly and provides no long lasting protection for the impeller.
What are the signs of a bad water pump?
Five Signs Your Water Pump Is Failing
- Overheating. A dead or dying water pump cannot circulate coolant through your vehicle’s engine and, as such, the engine will overheat.
- Coolant Leaks. Coolant leaks from the water pump are common and a clear sign that it’s time to replace the pump.
- Corroded Water Pump.
- Whining Noises.
How much does it cost to change water pump on outboard motor?
Labor costs are between $256 and $324 while parts cost between $205 and $314.
Where do you put the impeller lubricant?
Many manufacturers recommend spreading a little grease on it. Spreading grease or lubricant (as the manufacturer recommends) on the face plate will help to avoid dry start up friction where the impeller moves against the plate.
How do I know if my outboard water pump is bad?
The most obvious way to tell if the outboard water pump is failing is to watch for the engine to overheat.
Can you test a water pump?
HOW TO CHECK IF YOUR WATER PUMP WORKS & CIRCULATES …
How long should an outboard water pump last?
three years
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 long does it take to change an impeller?
Changing an impeller, on many engines, usually takes less than 20 minutes even if you are fairly slow. The most complicated aspect of the task is physical access to the pump. Raw water impellers are a wear item unfortunately they do not always abide by a time or hours of use schedule.