Raw Water Pump Impeller Replacement How To Guide

Loosen the serpentine belt. If you have the impeller in front of you. It may seem like a small unnecessary fix but it wi.

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Raw water pump impeller replacement how to guide 1.

Raw water pump impeller replacement how to guide.

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 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. Then remove the pump s end cover screws and take off the cover and gasket. If you r on a trailer or up on blocks now would be a good time to.

Then replace the cover to the pump housing but leave the cover screwed in place loosely. For raw water pump applications first close the water intake thru hull valve. Take the old impeller out by gripping the hub of the impeller using channel lock or needle nosed pliers. Replacing impellers in raw water pumps.

Replacement is relatively simple. Identify the impeller profile code letter by placing the impeller on the profiles on pages 98 100. We recommend replacing your raw water impeller if it s never been done or it s been more than two years. Next step is to drain the water out of the engine.

This prevents the impeller from sticking to the pump housing. Using a 5 8 box wrench and a 5 16 socket loosen the 5 8 locking nut so that the belt.