why not an metal impeller ??

casi77

Petty Officer 2nd Class
Joined
Mar 13, 2006
Messages
122
is this not thought of before to use a metal impeller on the outboards instead of rubber kind that we have to replace over and over!?
 

deejaycee_2000

Captain
Joined
Mar 28, 2006
Messages
3,447
Re: why not an metal impeller ??

metal on metal needs lube ..... oil and water doesn't go together .........
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: why not an metal impeller ??

Also at higher rpms,the fins (blades) collapse and it becomes a centrifigal (sp) pump,since the impeller is not centered in the housing.

DHP
 
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