Raw Water Pump Impeller Replacement How To Guide

We recommend replacing your raw water impeller if it s never been done or it s been more than two years.

Raw water pump impeller replacement how to guide. If you r on a trailer or up on blocks now would be a good time to. Replacement is relatively simple. Some experts advise you to remove the impeller from the raw water pump lubricate it with vaseline petroleum jelly and put it back in the pump. If you have the impeller in front of you.

Loosen the serpentine belt. Take the old impeller out by gripping the hub of the impeller using channel lock or needle nosed pliers. For raw water pump applications first close the water intake thru hull valve. It may seem like a small unnecessary fix but it wi.

Then replace the cover to the pump housing but leave the cover screwed in place loosely. Identify the impeller profile code letter by placing the impeller on the profiles on pages 98 100. Replacing impellers in raw water pumps. Then remove the pump s end cover screws and take off the cover and gasket.

If you have another brand of pump and you know their impeller part number go to page 105 upgrade to a jabsco impeller and check for a jabsco replacement impeller part number. Next step is to drain the water out of the engine.