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    1974 mercury 40 hp pumps eratically with a new pump kit

    I just installed a complete new water pump kit in my 74 Merc, hooked a hose up to the lower unit, turned on the water and started the engine it pumps out in a steady stream but it pumps out erratically , do I have an impeller blade or two going in the wrong direction? Thanks, Fred
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    1974 40 hp Merc impeller blade rotation?

    Is there any special direction the impeller blades are supposed to rotate or face in the water pump housing? I had to grind my old one off the shaft, and in my enthusiasm, i did not pay attention to which way what was left of the blades were going. I now have the blades going counterclockwise...
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