4) Remove the plug underneath the muffler, on the port side using a 3/8” socket. Use a container to catch the water so it doesn’t drain onto the carpet.


From the starboard side of the engine:
5) Remove the starboard engine block plug using a 9/16” socket.

6) Disconnect and drain the two hoses attached to the water pump which is attached to the main pulley on the aft end of the engine. Use a 5/16” nut driver on the hose clamps.




7) Remove the impeller from the water pump using a 5/16” nut driver to remove the impeller housing cover. Access to impeller is improved if you remove the small, fixed engine access cover towards the back of the boat, on the starboard side. Use needle nose vise grips to carefully remove impeller. Stick one jaw between the impeller blades and the other into the middle of the impeller, all the way in. Carefully pull out impeller. I like using vise grip needle nose pliers because the jaws stay parallel and therefore, grab better. Coat the impeller with Vaseline and put it in an airtight (ziplock) bag. If the impeller is two years old, replace it with a new one. It’s a Johnson Pump impeller, part # 09-812B-1. Be careful not to overtighten the impeller cover screws as they are fairly soft.