Raw Water Pump Impeller Replacement How To Guide

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.

Loosen the serpentine belt. If you r on a trailer or up on blocks now would be a good time to. It may seem like a small unnecessary fix but it wi. Using a 5 8 box wrench and a 5 16 socket loosen the 5 8 locking nut so that the belt.

Identify the impeller profile code letter by placing the impeller on the profiles on pages 98 100. Replacement is relatively simple. Then replace the cover to the pump housing but leave the cover screwed in place loosely. 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. Raw water pump impeller replacement how to guide 1. Next step is to drain the water out of the engine.

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. This prevents the impeller from sticking to the pump housing.