It does matter! I think I understand your placement. (And if so, you're
correct) The outer edge should be swept back, not into the direction of
rotation.
LD

"Mike G" wrote in message
ews.com...
My OMC seadrive flywheel and, by extension, drive shaft rotates counter
clock wise. Between the factory manual and clymer's manuals I've got
almost enough hard information to actually be of some use.

One thing not covered relating to the installation of the water pump
impeller is which way it should cup. I've installed a new one with the
cup situated so the to of the U is towards the direction of rotation.

I get a very good flow of water from the out of the outflow pipe but the
number 3 piston ate a ring. I don't think it was from overheating
but..........

Is the installation of the impeller correct, incorrect, or, though
unlikely, doesn't it matter?

Thanks
--
Mike G.
Heirloom Woods

www.heirloom-woods.net