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. Identify the impeller profile code letter by placing the impeller on the profiles on pages 98 100. It may seem like a small unnecessary fix but it wi.

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Replacing impellers in raw water pumps.

Raw water pump impeller replacement how to guide.

Using a 5 8 box wrench and a 5 16 socket loosen the 5 8 locking nut so that the belt. 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. Take the old impeller out by gripping the hub of the impeller using channel lock or needle nosed pliers.

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. For raw water pump applications first close the water intake thru hull valve. This prevents the impeller from sticking to the pump housing. Next step is to drain the water out of the engine.

Raw water pump impeller replacement how to guide 1. 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. Loosen the serpentine belt. Then replace the cover to the pump housing but leave the cover screwed in place loosely.

Replacement is relatively simple. If you have the impeller in front of you.