I took the lower unit apart, replaced the seals and impeller, put it back together and put it on the motor, everything is connected, the water tube is in good shape, the drive shaft pin is catching the impeller, the plastic water pump cover is seated, I don't think it CAN go on wrong because the screws are offset a little bit, the grommets seem to be in good shape, but the motor isn't spitting any water out the exhaust hole on the exhaust leg, it has no tell tale but I'm sure it should spit water out the exhaust or at least some mist, no?