Excell Pressure Washer Replacement Pump Guide (5 Pro Tips)

Replacing the pump on your Excell pressure washer might seem daunting, but trust me, it’s often more cost-effective than buying a whole new unit. I’ve been working with wood processing and firewood preparation for over 20 years, and I’ve seen my fair share of pressure washers used for cleaning equipment, stripping bark, and even prepping wood surfaces for staining. When those pumps go, it can be tempting to just throw the whole thing out. But with a little know-how and the right tools, you can get your Excell pressure washer back up and running in no time. This guide will give you five pro tips and a detailed, step-by-step process for replacing your Excell pressure washer pump, saving you money and keeping perfectly good equipment out of the landfill.

Excell Pressure Washer Replacement Pump Guide (5 Pro Tips)

Let’s dive into how you can tackle this repair yourself.

Why Replace the Pump Instead of Buying New?

Before we get started, let’s talk about why replacing the pump is often the best option. New pressure washers can be expensive, and often the motor is still perfectly good on your old unit. Replacing the pump is not only cheaper, but it’s also more environmentally friendly. You’re keeping a functioning motor out of the landfill and saving yourself some serious cash.

I remember one time, a local firewood supplier was about to toss out three pressure washers because their pumps had failed. I offered to take a look, and after replacing the pumps on all three, they were back in business. He saved hundreds of dollars and was incredibly grateful. That’s the kind of savings we’re talking about here.

Understanding Your Pressure Washer and Pump

First, let’s define some key terms and concepts:

Pressure Washer: A machine that uses a high-pressure stream of water to clean surfaces.
Pump: The heart of the pressure washer, responsible for pressurizing the water.
PSI (Pounds per Square Inch): A measure of water pressure. Higher PSI means more cleaning power.
GPM (Gallons per Minute): A measure of water flow. Higher GPM means you can clean larger areas faster.
Unloader Valve: A valve that regulates the pressure in the system and diverts water flow when the trigger is released.
Thermal Relief Valve: A safety valve that releases hot water to prevent overheating.

Knowing these terms will help you understand the steps involved in replacing your pump.

Pro Tip #1: Identifying the Correct Replacement Pump

The most crucial step is identifying the correct replacement pump for your Excell pressure washer. Not all pumps are created equal, and using the wrong one can damage your pressure washer or result in poor performance.

Finding Your Model Number

Locate the Model Number: Your Excell pressure washer should have a model number sticker somewhere on the frame or engine. Look for a combination of letters and numbers (e.g., EXCL2225).
Consult the Manual: If you have the owner’s manual, the model number will be listed there.
Search Online: If you can’t find the physical sticker, try searching online using a description of your pressure washer (e.g., “Excell pressure washer with Honda engine”).

Matching Pump Specifications

Once you have the model number, you need to find a replacement pump that matches the original specifications. Pay attention to these factors:

PSI and GPM: The new pump should have the same PSI and GPM ratings as the old pump. Using a pump with a significantly higher PSI than the original can damage your pressure washer’s components.
Engine Shaft Size: The pump connects to the engine’s crankshaft. The shaft size (diameter and type, e.g., keyed or threaded) must match the engine.
Bolt Pattern: The mounting holes on the pump must align with the mounting holes on the pressure washer frame.
Pump Type: Axial cam pumps are common on homeowner models, while triplex pumps are used on professional models. Make sure you’re replacing an axial cam pump with another axial cam pump, or a triplex pump with another triplex pump.
Brand Compatibility: While some pumps are universal, it’s generally best to stick with a pump that’s specifically designed for Excell pressure washers or is known to be compatible.

Where to Buy a Replacement Pump

Online Retailers: Amazon, eBay, and other online retailers offer a wide selection of pressure washer pumps. Be sure to read reviews and check the seller’s reputation before making a purchase.
Local Hardware Stores: Some hardware stores carry a limited selection of pressure washer pumps. This is a good option if you need a pump quickly.
Small Engine Repair Shops: Local small engine repair shops often carry a variety of pumps and can help you find the right one for your pressure washer.
Excell Parts Suppliers: Some online retailers specialize in Excell pressure washer parts. This is often the best option for finding a direct replacement pump.

Example: Let’s say you have an Excell EXCL2225 pressure washer with a 2200 PSI, 2.5 GPM axial cam pump and a 3/4″ keyed shaft. You would search for a replacement pump that matches those specifications.

Pro Tip #2: Gathering the Right Tools and Materials

Having the right tools and materials will make the pump replacement process much smoother and easier. Here’s a list of what you’ll need:

Socket Set and Wrenches: You’ll need a variety of socket sizes and wrenches to remove and install the pump. A metric set is usually required.
Screwdrivers: Both flathead and Phillips head screwdrivers will come in handy.
Pliers: Pliers are useful for gripping and manipulating small parts.
Penetrating Oil: This will help loosen any rusted or stuck bolts.
Threadlocker (Loctite): This will prevent the bolts from loosening over time.
Grease: Applying a small amount of grease to the engine shaft will make it easier to install the new pump.
Rags: You’ll need rags to clean up any spills.
Safety Glasses: Always wear safety glasses when working on machinery.
Gloves: Gloves will protect your hands from dirt and grime.
Drain Pan: To catch any oil or water that spills out.
Torque Wrench: A torque wrench is essential for tightening the bolts to the correct specifications. This is often overlooked but crucial for long pump life.
Pump Saver Solution: This helps prevent corrosion and damage to the pump when the pressure washer is stored.

My Experience: I once tried to replace a pump without penetrating oil, and I ended up stripping the head of a bolt. It took me an extra hour to remove the bolt, and I had to buy a new one. Lesson learned: always use penetrating oil!

Pro Tip #3: Preparing the Work Area and Pressure Washer

Before you start working on your pressure washer, it’s important to prepare your work area and the pressure washer itself.

Safety First

Disconnect the Spark Plug: This will prevent the engine from accidentally starting while you’re working on it.
Disconnect the Water Supply: Turn off the water supply to the pressure washer and disconnect the hose.
Release the Pressure: Squeeze the trigger on the spray gun to release any remaining pressure in the system.
Drain the Fuel: Drain the fuel tank to prevent spills.

Preparing the Work Area

Choose a Well-Lit Area: Make sure you have plenty of light to see what you’re doing.
Protect the Surface: Place a drop cloth or cardboard under the pressure washer to protect the surface from spills.
Organize Your Tools: Keep your tools organized and within easy reach.
Take Pictures: Take pictures of the pump and its connections before you start disassembling it. This will help you remember how everything goes back together.

Preparing the Pressure Washer

Clean the Pressure Washer: Use a brush and some soap and water to clean the pressure washer. This will make it easier to work on and prevent dirt from getting into the pump.
Remove the Housing: Remove any housing panels or covers that are blocking access to the pump.

Step-by-Step Guide to Replacing the Excell Pressure Washer Pump

Now that you’ve gathered your tools, prepared your work area, and identified the correct replacement pump, it’s time to start the pump replacement process.

Step 1: Disconnecting the Old Pump

Disconnect the Water Inlet Hose: Use a wrench to disconnect the water inlet hose from the pump. Be prepared for some water to spill out.
Disconnect the High-Pressure Hose: Use a wrench to disconnect the high-pressure hose from the pump. Again, be prepared for some water to spill out.
Disconnect Any Other Connections: Disconnect any other connections to the pump, such as the unloader valve or thermal relief valve.
Remove the Mounting Bolts: Use a socket set or wrench to remove the mounting bolts that secure the pump to the engine.
Remove the Pump: Carefully remove the old pump from the engine. You may need to wiggle it a bit to get it off.

Step 2: Preparing the New Pump

Inspect the New Pump: Inspect the new pump for any damage.
Apply Grease to the Engine Shaft: Apply a small amount of grease to the engine shaft. This will make it easier to install the new pump.
Install the Key (If Applicable): If your engine has a keyed shaft, make sure the key is in place.
Install Any Fittings: Install any fittings that are not already installed on the new pump, such as the unloader valve or thermal relief valve. Use thread sealant on the threads to prevent leaks.

Step 3: Installing the New Pump

Align the Pump: Align the new pump with the engine shaft and mounting holes.
Slide the Pump onto the Shaft: Carefully slide the pump onto the engine shaft. You may need to rotate the pump slightly to get it to line up.
Install the Mounting Bolts: Install the mounting bolts and tighten them to the torque specifications listed in the owner’s manual. Use threadlocker on the bolts to prevent them from loosening over time.
Reconnect the Water Inlet Hose: Reconnect the water inlet hose to the pump.
Reconnect the High-Pressure Hose: Reconnect the high-pressure hose to the pump.
Reconnect Any Other Connections: Reconnect any other connections to the pump, such as the unloader valve or thermal relief valve.

Step 4: Testing the New Pump

Reconnect the Spark Plug: Reconnect the spark plug.
Turn on the Water Supply: Turn on the water supply to the pressure washer.
Start the Engine: Start the engine.
Squeeze the Trigger: Squeeze the trigger on the spray gun and check for leaks.
Adjust the Pressure: Adjust the pressure to the desired level.
Test the Pump: Test the pump by spraying water on a surface. Make sure the pump is working properly and that the pressure is consistent.

Troubleshooting:

Pump Won’t Start: Make sure the spark plug is connected, the fuel tank is full, and the water supply is turned on.
Pump Leaks: Check all the connections for leaks. Tighten any loose connections and use thread sealant on the threads to prevent leaks.
Pump Has Low Pressure: Check the unloader valve and make sure it’s adjusted properly. Also, check the water inlet hose for any kinks or obstructions.

Pro Tip #4: Understanding Unloader Valves and Thermal Relief Valves

The unloader valve and thermal relief valve are critical components of your pressure washer’s pump. Understanding their function is essential for proper maintenance and troubleshooting.

Unloader Valve

The unloader valve regulates the pressure in the system. When you release the trigger on the spray gun, the unloader valve diverts the water flow back to the pump inlet, preventing the pressure from building up too high.

Symptoms of a Faulty Unloader Valve:
- Pressure washer pulsates when the trigger is released.
- Pressure washer won’t build pressure.
- Pressure washer leaks water when the trigger is released.
Adjusting the Unloader Valve: Some unloader valves are adjustable. You can adjust the pressure by turning the adjustment screw. Refer to your owner’s manual for instructions on how to adjust the unloader valve.

Thermal Relief Valve

The thermal relief valve protects the pump from overheating. When the water in the pump gets too hot, the thermal relief valve opens and releases the hot water, preventing damage to the pump.

Symptoms of a Faulty Thermal Relief Valve:
- Thermal relief valve leaks water constantly.
- Pump overheats and shuts down.
Replacing the Thermal Relief Valve: If the thermal relief valve is faulty, it needs to be replaced. The thermal relief valve is usually located on the pump head.

Pro Tip #5: Maintaining Your New Pump for Longevity

Once you’ve replaced your pump, it’s important to maintain it properly to ensure its longevity. Here are some tips for maintaining your new pump:

Use Pump Saver Solution

Pump saver solution is a specially formulated fluid that protects the pump from corrosion and damage when the pressure washer is stored. It lubricates the seals and prevents them from drying out.

How to Use Pump Saver Solution:
1. Disconnect the water supply and high-pressure hose from the pressure washer.
2. Pour the pump saver solution into the water inlet.
3. Pull the starter cord several times to circulate the pump saver solution through the pump.
4. Store the pressure washer in a dry place.

Prevent Freezing

Freezing temperatures can damage the pump. If you live in an area where temperatures drop below freezing, it’s important to protect your pump from freezing.

How to Prevent Freezing:
1. Drain all the water from the pump.
2. Pour antifreeze into the water inlet.
3. Pull the starter cord several times to circulate the antifreeze through the pump.
4. Store the pressure washer in a warm place.

Change the Pump Oil

Some pressure washer pumps require regular oil changes. Refer to your owner’s manual for instructions on how to change the pump oil. Using the correct type of oil is crucial.

Clean the Water Inlet Filter

The water inlet filter prevents dirt and debris from entering the pump. Clean the water inlet filter regularly to ensure proper water flow.

Store the Pressure Washer Properly

Store the pressure washer in a dry place, away from direct sunlight and extreme temperatures. Covering the pressure washer will protect it from dust and dirt.

Case Study: The Importance of Pump Saver

I once had a customer who stored his pressure washer in his garage over the winter without using pump saver solution. When he went to use it in the spring, the pump was completely seized up. The seals had dried out and cracked, and the pump was beyond repair. He had to buy a new pump, which cost him several hundred dollars. This is a perfect example of why it’s so important to use pump saver solution when storing your pressure washer.

Additional Considerations for Wood Processing Applications

Since my expertise is in wood processing and firewood preparation, let’s talk about some specific considerations for using pressure washers in these applications.

Removing Bark

Pressure washers can be used to remove bark from logs, especially for smaller projects. However, it’s important to use the right nozzle and pressure. A narrow nozzle with high pressure can damage the wood, while a wide nozzle with low pressure may not remove the bark effectively. Experiment to find the right balance.

Cleaning Wood Surfaces

Pressure washers can be used to clean wood surfaces before staining or painting. However, be careful not to use too much pressure, as this can damage the wood. A wide nozzle with low pressure is usually best.

Cleaning Equipment

Pressure washers are great for cleaning logging equipment, such as chainsaws, log splitters, and skidders. Use a wide nozzle with moderate pressure to remove dirt and debris.

Data and Insights:

In my experience, using a pressure washer with a PSI of around 2000-2500 is ideal for most wood processing applications. A GPM of 2-3 is sufficient for most cleaning tasks. For removing bark, a nozzle with a 25-degree spray pattern works well.

Choosing the Right Pressure Washer for Wood Processing

If you’re buying a new pressure washer specifically for wood processing, here are some factors to consider:

PSI and GPM: As mentioned earlier, a PSI of around 2000-2500 and a GPM of 2-3 is ideal for most applications.
Engine Type: Gas-powered pressure washers are more powerful and portable than electric pressure washers. However, electric pressure washers are quieter and require less maintenance.
Pump Type: Axial cam pumps are less expensive but less durable than triplex pumps. Triplex pumps are a better choice for heavy-duty use.
Nozzle Types: Look for a pressure washer that comes with a variety of nozzle types, including a wide nozzle, a narrow nozzle, and a soap nozzle.
Hose Length: A longer hose will give you more reach.
Portability: If you need to move the pressure washer around, look for a model with wheels and a handle.

Conclusion: Taking Control of Your Equipment Maintenance

Replacing the pump on your Excell pressure washer is a manageable task that can save you money and extend the life of your equipment. By following these five pro tips and the detailed step-by-step guide, you can confidently tackle this repair yourself. Remember to always prioritize safety, use the right tools, and take your time.

Now that you’re armed with this knowledge, you’re ready to get your Excell pressure washer back in action. Whether you’re cleaning equipment, removing bark, or prepping wood surfaces, a functioning pressure washer is an invaluable tool for any wood processing or firewood preparation operation. Don’t be afraid to get your hands dirty and take control of your equipment maintenance. You’ll be surprised at what you can accomplish! Good luck!