Raw Water Pump Impeller

Changing an impeller is not a daunting task and it s one that every boater should consider adding to their arsenal of diy maintenance.

Raw water pump impeller.

The most complicated aspect of the task is physical access to the pump. Replaces mercruiser 817275a4 817275a3 and sierra 18 3570. Run dry impellers the only impellers in the world guaranteed to run dry for up to 15 minutes. Your volvo penta d4 or d6 impeller is a major part of the engines seawater system which cools the secondary internal fresh water system which in turn cools the engine.

For 1991 and later alpha gen ii water pumps. What is a raw water impeller. Check the inside surface of the cover for pitting or wear grooves. With the impeller removed make sure to inspect the remaining parts of the raw water pump for wear.

The raw water pump. Changing an impeller on many engines usually takes less than 20 minutes even if you are fairly slow. The impeller may also stick to the housing and come apart when the pump starts. Big autoparts water pump impeller raw sea impeller repair kit for for johnson 09 812b 1 yanmar 119773 42600 sierra 18 3306 indmar s685007 4 9 out of 5 stars 85 14 99 14.

The impeller is made up of several flexible blades and designed to move a fluid by rotation. Check your raw water strainer. Replacement one piece bi directional sea water pump body kit. The more evenly the sides of the impeller ride against the cover plate the better the pump output.

Now is a good time to check and clean your raw water strainer since the thru hull is closed. All it takes is a plastic bag blocking the raw water inlet or a seacock left closed when you start your engine and your impeller will soon be a shredded mess. Tests prove that globe s run dry impellers outperform standard neoprene or rubber impellers and are guaranteed to run dry for up to 15 minutes. Nitrile impellers are used for bilge pumping and for transfer duties where water is heavily contaminated for example by oil or diesel.

Indmar water pump impeller this kit fits almost all indmar marine engines malibu supra moomba etc and almost every mastercraft produced from 1987 until the change to ilmor engines in 2011. Impellers are damaged by debris that get sucked in by chemicals and especially by running dry. Your boats raw water pump is designed to use the. Rps water pump impeller for johnson 09 1027b volvo penta 3 0 4 3 5 0 5 7 v6 v8 engines jabsco 1210 0001 sierra 18 3081 18 3277 3862281 21213660 21951346 omc 4 6 out of 5 stars 123 18 44 18.