How to Remove Pressure Washer Pump from Honda Engine

best pressure washer

Honda is a well-known brand for its high quality, robust and reliable machinery. Honda pressure washers have the same qualities; it has the power to clean the most stubborn stains/dirt from any surface. Even though they are the best, they still go through mechanical failures and system malfunctioning problem. In that case, if you want to repair it yourself, among other things, you must know how to remove the pressure washer pump from the Honda engine.

Honda Pressure Washers

Each company manufactures their pressure washer equipment such as the engine, pump, spray gun, the nozzles etc. Brands are not so different from each other, troubleshooting among all brand is almost the same. However, you should also check the manual provided by the manufacturer when troubleshooting.

When it comes to troubleshooting within the same brand, such as Honda, since their construction and mechanism is the same, troubleshooting doesn’t change from model to model.

Why does one need to remove a pump from a pressure washer?

The pump is one of the most valuable and vital components of a pressure washer. The pump is what generates the water pressure, and water flow and these two things are the main functions of a pressure washer. So without a functional pump, a pressure washer is trash.

There are three types of pumps; the axial cam pump, the triplex plunger pump, and the wobble plate pump. Each pump has its application, features, and they each generate a different kind of water pressure.

The axial cam pump is one of the most commonly used and the most durable pump of all. This pump, however, cannot be fixed if it stops working. So if your pressure washer has an axial cam pump and it breaks or stops working, you will have no other option than to replace it. The other two pumps are not so durable, but they are fixable.

Since an engine is with a pump, so if there is any problem, you will have to remove the pump to check it and also check other equipment.

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How to remove pressure washer pump from Honda engine

Unfortunately, if your Honda pressure washer stops working, you will have to remove the pressure washer pump, you will need to follow the following steps to successfully remove the pump without damaging it or any other components.

  1. First, unplug any ingoing and outgoing hose of your pressure washer.
  2. Disconnect the wire from the spark plug.
  3. Take some oil and apply it on the upper part groove of the flange
  4. After that, you need to unscrew the mounting bolts and the washers.
  5. Loosen the screw from the driveshaft, and you can use an Allen wrench to unscrew it.
  6. Take out the pump from the engine with a screwdriver.

Above were the most straightforward steps to remove the pump from the engine, once you have removed the pump place it carefully and apply what operations are needed to fix it.

Now in case you are reconnecting the pump to the engine, the above steps won’t help in any way at all. For reconnecting the pump, there is a different method for doing so, and below are the steps to follow.

  1. Mount the old pump’s thermal relief valve using a sealing tape.
  2. Now you need to position the pressure washer pump in the direction of the crankshaft.
  3. After that, rotate the new pump around the mounting holes.
  4. Now fit the bolts and tighten them into the holes and screw them using an Allen wrench.
  5. Now plug in all the ingoing and outgoing hoses to the pressure washer.
  6. After that, you need to plug-in the wire for the spark plug.
  7. Run the pressure washer for a few minutes and check if it’s working correctly.

Although the process is very easy and straightforward, there are a few things you should always look for while carrying out the task. If you don’t take care of these things, you will end up damaging the components.

  1. If you are replacing the pump, always make sure the new pump is compatible with your pressure washer engine.
  2. Make sure the new pump’s bolt pattern fits your pressure washer engine.
  3. As we have mentioned earlier, always check the manual to get a better understanding of your pressure washer’s mechanism.
  4. If there is water or fluid in the hose while you are dismantling them, use a chemical injection tube to get rid of the water of any liquid.
  5. You can only replace the pump, if the new pump has the same GPM (flow rate), PSI (water pressure), pump style, mounting direction and shaft size. If there is any difference between the two, you should not replace it.


If your pressure washer stops working, you will most definitely need to remove the pump in the process of fixing your pressure washer. Removing a pressure washer pump from the Honda engine is an easy and straightforward process; all you need to do is to take some precautions and carefully follow the mentioned steps. If in case you need a new pressure washer, you can also buy the best gas pressure washer under $300.

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