Evinrude 25 hp not pumping water is one of the most critical problems you can have when using your outboard motor.
This is simply due to the level of casualties it can cause.
When this occurs, there are a lot of reasons that can lead to this.
Some of the reasons why evinrude 25 hp outboard motor will not pump water includes clogged Impeller, faulty thermostat, clogged water outlet, damaged impeller and clogged water intake.
When any of these problems occur, it will reduce the volume of water that the impeller pumps.
Due to this, serious outboard problems like overheating can occur which will reduce the efficiency and safety of the evinrude 25 hp outboard motor.
That is why you have to fix it when you discover that your outboard motor is not pumping water.
Why Is Evinrude 25 HP Outboard Motor Not Pumping Water And How To Fix It
1)Clogged Water Intake
To maintain an excellent performance from the evinrude outboard motor, the temperature of the outboard motor has to be well regulated.
For this to be possible, a cooling system is used.
In the evinrude 25 hp outboard motor, the cooling system is the water pump.
This consists of the impeller and other components.
Before the water pump in an outboard motor can regulate the temperature of the outboard motor well, it has to receive water.
This water is sent in through the help of the water intake which is exposed to water.
But when the water coming in is filled with impurities like seaweed, the efficiency of the water intake will reduce.
This is because the water intake will be clogged.
This will reduce the volume of water that flows to the impeller.
As a result of this, the evinrude outboard motor will not be able to pump water.
a)Remove Debris From Water Intake
If you observe that there are debris that is obstructing the water intake, you have to remove it.
This can be seaweed or any other thing.
Blockage of the water intake is bad for the performance of the outboard motor.
This can easily lead to overheating.
To avoid this, you have to make sure that the water intake is always free from obstruction.
2) Clogged Or Stuck Impeller
The impeller helps in moving the water it receives from the water intake to the outboard motor.
This helps in efficiently regulating the temperature of the outboard motor.
But as you keep using the outboard motor, the impeller can start accumulating debris.
When this debris gets high, the free flow of the impeller will be affected.
This is because the accumulated debris will clog the impeller thereby reducing free spinning.
This will lead to a situation in which the evinrude 25 hp outboard motor is not pumping water.
a)Free Stuck Impeller
When an outboard water pump is faulty, one of the common causes is usually the impeller.
But a lot of times this does not necessarily mean that the impeller is totally faulty.
This occurs when the impeller is stuck by debris.
To help the impeller to function well again, you have to free the stuck impeller.
This can be done by opening the impeller housing and removing anything that blocks the free movement of the impeller.
With this, the impeller will be able to work well again by spinning freely.
3) Clogged Water Outlet
Before the temperature of an outboard motor can be well regulated, the water outlet has to function well.
This is what will help the water moved by the impeller to get to the outboard motor.
With this, the temperature of the outboard motor will be regulated.
But if the water outlet is clogged, evinrude 25 hp not pumping water is one of the problems you will face.
a)Free Clogged Water Outlet
When your outboard motor is not pumping water, you have to troubleshoot.
This is what will help you see the exact problem.
If you discover that it is due to a clogged water outlet, you have to free the water outlet.
This will help send water from the impeller to the outboard motor.
With this, your evinrude outboard motor will be able to pump water.
4) Faulty Impeller Causes Evinrude 25 HP Not Pumping Water Problem
The impeller in an outboard motor helps in moving water in an outboard motor.
If it is faulty, then no volume of water will be pumped.
This can be caused if the impeller is clogged.
Apart from the impeller being clogged, an impeller can be unable to pump water due to damage of the impeller
a)Replace Faulty Impeller
When you discover that your evinrude 25 hp outboard motor is not pumping water, you have to troubleshoot.
In troubleshooting, you have to examine all the components of the water pump.
This includes the impeller housing, impeller and other components like the water intake and water outlet.
If you discover that the impeller is worn and faulty, you have to replace it.
In replacing the impeller with a new one, you have to make sure that the replacement is compatible.
This will help solve evinrude 25 hp not peeing water problems.
5) Loose Contact Of Impeller With Drive Shaft
Before the impeller can function, it has to spin.
This is what helps it to move water.
But for this to be possible, the impeller has to receive this circular motion.
This is made possible by the drive shaft.
The impeller must be well secured to the driveshaft of the outboard motor.
This is what helps the impeller to move when the drive shaft is spinning.
But for this to be possible, there is a pin that connects the impeller to the drive shaft.
This helps in creating a firm contact between the impeller and the drive shaft.
But this pin can be lost at some point.
This mostly occurs if the pin is not replaced after a troubleshooting is performed on the water pump.
Due to this, the impeller will have a very loose contact with the drive shaft.
This will make the impeller not to spin when the driveshaft is moving.
Due to this, water will not pump in the evinrude outboard motor.
a)Secure Impeller Well To Drive Shaft
If after troubleshooting you observe that the impeller is loosely held to the driveshaft, you have to secure the position.
This can be done by positioning the pin that firmly connects the impeller to the drive shaft well.
With this, the impeller will be able to move well and pump water to help cool the outboard motor.
This will solve the inability of the evinrude outboard motor not pumping water.
What To Do When Evinrude 25 HP Is Not Pumping Water
When you discover a fault in your evinrude outboard motor, you should not draw conclusions on which part is the cause.
This can lead to wastage of funds when you buy a replacement part that was not faulty.
To avoid this, you have to make sure that you troubleshoot a faulty outboard motor well.
With this, you will be able to detect the exact problem.
This should be done too when you observe that your outboard motor is not pumping water.
When an outboard motor cannot pump water, it is usually due to a problem in the water pump.
A water pump is made up of plenty components.
This includes an impeller and other components like the water pump housing and water intake.
That is why it is important to troubleshoot so as to discover the exact part that is faulty.
When you discover the faulty part, then you should replace it with a good one.
This will help solve evinrude 25 hp not pumping water problems.
2) Fix Faulty Water Pump Component
After troubleshooting for reasons why your outboard motor is not pumping water, you will come out with the cause.
This can be caused by a faulty impeller or a clogged water intake.
When you discover the cause of the problem, you have to solve it.
This will help your evinrude 25 hp outboard motor to pump water while running.
3) Use Compatible Water Pump Replacement Kits
When making a replacement of your faulty evinrude outboard motor component to a good one, you have to use a good one.
Apart from buying a good water pump replacement kit, you have to make sure that it is compatible with your evinrude 25 horse power outboard motor.
If it is not compatible, you will still have issues when you use your outboard motor.
To avoid this, you have to make sure that you use compatible parts for replacement.
This will help your evinrude outboard motor to function well by regulating the temperature of the outboard motor well.
Using compatible water pump replacement kit is one of the ways in which you can solve evinrude 25 hp not pumping water problems.