Raw Water Pump Impeller Replacement How To Guide

It may seem like a small unnecessary fix but it wi. For raw water pump applications first close the water intake thru hull valve. Replacement is relatively simple.

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Using a 5 8 box wrench and a 5 16 socket loosen the 5 8 locking nut so that the belt.

Raw water pump impeller replacement how to guide.

Next step is to drain the water out of the engine. Then remove the pump s end cover screws and take off the cover and gasket. We recommend replacing your raw water impeller if it s never been done or it s been more than two years. Then replace the cover to the pump housing but leave the cover screwed in place loosely.

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. Take the old impeller out by gripping the hub of the impeller using channel lock or needle nosed pliers. Raw water pump impeller replacement how to guide 1. Identify the impeller profile code letter by placing the impeller on the profiles on pages 98 100.

If you r on a trailer or up on blocks now would be a good time to. Loosen the serpentine belt. Replacing impellers in raw water pumps. This prevents the impeller from sticking to the pump housing.

If you have the impeller in front of you. 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.