Installation Instructions for Water Pump Impeller Kit Compatible with MerCruiser Models 879312023 and 854179001

Tools Required:

1. Screwdriver Set: A flathead and Phillips head screwdriver to remove the screws from the water pump housing.

2. Wrench Set: A set of wrenches (adjustable or socket set) to loosen and tighten the mounting bolts.

3. Pliers: Needle-nose pliers may be helpful for handling small parts.

4. Clean Cloth: To wipe any excess water and debris from the components.

5. Grease/Sealant: Marine grease for lubricating the new impeller and sealant for ensuring a watertight fit (if necessary).

6. Safety Glasses: To protect your eyes during the installation process.

7. Bucket or Drain Pan: To catch any water that may spill during the removal of the old impeller.

Installation Steps:

1. Preparation: Disconnect the battery to avoid any electrical hazards. Remove the water pump from the engine by loosening the mounting bolts with a wrench.

2. Disassembly: Carefully remove the screws and disconnect the water pump housing. Make note of the orientation and position of each component for reassembly.

3. Remove Old Impeller: Take out the old impeller and inspect the housing for any wear or damage. Clean any debris from the housing with a clean cloth.

4. Install New Impeller: Apply a thin layer of marine grease to the new impeller and place it into the housing in the same orientation as the old one.

5. Reassemble: Reattach the water pump housing, ensuring that all screws and bolts are tightened to prevent leaks. Use a sealant if necessary for a watertight fit.

6. Reconnect: Reconnect the battery and ensure all connections are secure.

7. Test: Start the engine and monitor the water flow to ensure the new impeller is functioning correctly and that there are no leaks.

By following these instructions and using the proper tools, you can ensure a successful installation of your new water pump impeller kit. Enjoy improved cooling performance and enhanced reliability on the water!