How often do you change the impeller?
Spark plugs, water pump impellers, thermostats and gear oil are what they recommend changing at that time-frame. I run a E-Tec and inspect/replace the impeller depending the number of hours each year, which is between 50 and 60. So every 3 years seems about right for me.
How do I know when to replace my outboard motor impeller?
Several things tell you it's time to replace the impeller in your outboard motor. One is in print; the rest you will see if you only pay attention while operating the motor. Ignore the symptoms of an impeller in need of replacement only if you wish to purchase a new motor.
How much does it cost to replace an impeller on a boat?
Every boater should consider learning how to replace an impeller as part of regular boat maintenance. How much does it cost to replace an impeller? If you take your boat to a shop for replacement, you could pay on average a shop cost of 1-2 hours, which could be anywhere from $100 to $350 plus parts, which are roughly $100.
How long does an impeller last on a water pump?
The Impeller Has Been In Service for Three Years. If you haven't changed the impeller when you inspect the water pump, as part of the preparations for the winter layup or the spring fitting-out, three years is the outer limit.
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.
How often do you need to 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 I know if my impeller is 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.
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 long will an outboard impeller last?
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.
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.
Is it OK to start a boat out of water?
To run your boat motor out of water, start by attaching a hose to your motor's water intake so you can flush in water, which will avoid damaging the engine. Once the hose is attached, turn on the water faucet. Then, pull the gear shift to neutral and start the engine.
How long can you run a boat on muffs?
Tohatsu/Nissan For larger engines, use the flush port or a set of flushing muffs. Water pressure should be set to one-half or more to ensure adequate flow to the intakes. The engine should be run for five to 10 minutes.
Should water coming out of outboard be hot?
Your water flow should appear steady in most outboards. You also want the water coming out to be warm, but not excessively hot.
How often should an outboard be serviced?
every 100 hoursAnnual Service Most outboard, sterndrive and gasoline inboard engines require basic service every 100 hours or annually.
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 $451 and $591. Labor costs are estimated between $175 and $220 while parts are priced between $276 and $371.
How often should you change water pump on Yamaha outboard?
RE: How often for Impeller change on outboard ? 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.
Is impeller and water pump the same thing?
The heart of the cooling system of your vehicle is the water pump, and as a key part among its components to carry out its function, there is the impeller.
How much does it cost to replace a water pump on a boat?
Labor costs are estimated between $175 and $220 while parts are priced between $276 and $371. This range does not include taxes and fees, and does not factor in your specific model year or unique location. Related repairs may also be needed.
How does a boat impeller work?
0:014:45What is a Water Pump Impeller, How Does it Work & Why is ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo that it can create suction to start sucking up that water from these intakes right here in theMoreSo that it can create suction to start sucking up that water from these intakes right here in the lower unit every motor is going to have some sort of intake to bring the water in.
How do you change the impeller on a Mercury 115 outboard?
1:1610:23How To Replace Mercury Outboard Water Pump Impeller - YouTubeYouTubeStart of suggested clipEnd of suggested clipAll right let's go to the water pump okay so this is your water pump and on top of a gear box hereMoreAll right let's go to the water pump okay so this is your water pump and on top of a gear box here so we need to unbolt this top housing to gain access to the. Impeller.
How long has an impeller been in service?
The Impeller Has Been In Service for Three Years. If you haven't changed the impeller when you inspect the water pump, as part of the preparations for the winter layup or the spring fitting-out, three years is the outer limit.
Why does my outboard motor overheat?
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.
Why does my motor keep getting wasps in winter?
The other most likely cause is a damaged or worn impeller.
How long does it take to replace an impeller on an outboard motor?
For the Do-It-Yourselfer : Actual time to replace an impeller is not that much on most motors once you understand each motors technique. An average replacement should be near or less than one hour.
Why is the impeller offset?
The impeller is offset to one side so that when the water comes into the pump housing at the widest part around the impeller and as the impeller turns the water is compressed and then forced out on the other side. This is illustrated by the LH photo below.
What to look for after water pump is removed?
Things to look for after the water pump is removed are, the impeller can take on a curl rather than have the blades snap straight outwards when removed from the housing.
What is a round pin on an impeller?
Some impellers like these do not use a woodruff or square key, but a round pin. This round key fits in the recess of the impeller and then ON a flat of the driveshaft. Flat you say, well it may because of a possible easier assembly. The round key locked in 1/2 of the impeller, upon rotation of the driveshaft, binds the two together.
What happens if you go boating in muddy water?
If you do your boating in muddy, sandy or debris infected water which could plug the water intake holes to the water pump , OR run aground occasionally, that would place your motor way higher on the "TO DO" list than a boater who only goes to a clear lake.
Do you need to replace a water pump?
In most cases you will never need to replace the water pump assembly, just the impeller. Sometimes the rubber impeller becomes un-bonded to the metal hub making for an inoperative pump. Inspection : Check if there is any wear or deformities on the impeller, if so then replace it.
