'I know how important it is to keep your diesel engine running smoothly out on the water. One part that you'll want to keep an eye on is the impeller. Here's how to spot a broken one and change it out: Start by turning off your diesel engine and letting it cool down completely. This will ensure that you don't burn yourself or damage any of the engine components. Next, locate the raw water pump, which is usually located near the front of the engine. This pump is responsible for circulating water through the engine to keep it cool. Remove the cover on the raw water pump and take a look at the impeller. You're looking for any signs of damage or wear, such as missing or broken blades, cracks, or deformities. If you see any of these signs, it's time to change out the impeller. order an impeller kit here To change out the impeller, you'll need to remove it from the pump. First, remove any screws or bolts that are holding the impeller cover in place. Then, use a pair of pliers or a specialized impeller removal tool to carefully pull the impeller out of the pump. Once you've removed the old impeller, inspect the pump housing for any signs of damage or wear. If you see any cracks or deformities, you may need to replace the entire pump. Install the new impeller by first applying a small amount of lubricant to the blades and then carefully sliding it into place. Make sure that the impeller is properly aligned with the shaft and that it rotates freely. Reinstall the impeller cover and any screws or bolts that were removed earlier. Be sure to tighten everything securely to prevent any leaks. Finally, start up your diesel engine and check for any leaks or abnormalities. If everything looks good, you're ready to hit the water again! Changing out the impeller on your diesel engine is an important maintenance task that should be done regularly to ensure that your engine stays running smoothly. By keeping an eye out for any signs of wear or damage and following these steps to change out the impeller, you'll be able to keep your engine in top condition for many fishing trips to come!