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Raw water pump and impeller

waterplow

New member
I started having some overheating problems and could hear a squeal coming from the water pump. So I changed it out, only to find that I had replaced the circulating pump when the actual problem was the impeller inside the raw water pump.
My raw water pump is on a Chevy 350 cc block and is on the front of the motor directly below the circulating pump.

Pictures included for folks like me that usually learn the hard way!
The 2nd picture shows the mostly shredded impeller.
 

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