Brief tutorial on water pump impellers.

[Frank Acampora]

These are all impellers out of a dual exhaust lower unit. First is a new one. Second is an old one that pumped very little water. third is one that pumped ok at speed but did not pump at idle. Lastly is the broken gasket that also caused no water at idle.

Guess which one is the only useful one.

 

[fisheymikey]

the one that has no bends in them.. but i have a funny feeling it is a trick question(lol)

 

[Scott Danforth]

I'm going to go with the brandy new one you installed to replace the old impeller