mercury 650 1965

by Mark
(Oakhurst, Ca)

After installing a new water pump, water pump housing and replacing the two seals under the water pump housing water is not pumping with the same amount of force before repair.I was not having this problem before changing parts. It had been a 2 seasons since the last water pump installation. I was doing this as a maintenance project. I can see more water will come out when I give it more gas but still not the volume of the past. I've pulled it apart numerous times but can't figure it out. The motor is not over heating as I feel the bottom part of the motor while running is relatively cool to the touch.

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