Moroso electric water pump help

my 1967 fairlane has been torn apart for two years finally got back together started her up now water pump is not flowing water. Moroso has a life span of 3200 operating hours this one has under 100 hours of operating time. Does anyone know if it is possible that it is locked up due to setting for two years unused? and if so is it possible to rebuild this thing since it cost $300 dollars?

I would say go back to basics. Check the wires to the pump itself. Do you get power to the hot wire? Is the ground wire (or chassis ground) good?

Are you sure the wires are not reversed? (This would make the pump run backwards, preventing flow).

Also, are you sure it's not another problem, such as a stuck thermostat or other coolant obstruction?
(I even had a mouse nest occur in an upper rad hose, once).

Also, try removing the pump and spin the impeller by hand. Does it feel seized or rough when turned? Possibly the impeller is loose on the shaft or has become corroded. Try applying 12 volts and a ground wire to the harness and see if the shaft spins.

I think the only way your pump could go bad when just sitting is if the engine coolant or water seeped past the pumps impeller shaft seal and contaminated the bearings or electric motor itself.

thx for your post turns out it was a closed thermostat and a bad ground connection to the block. just removed thermostat and made a new ground connection and presto i have power. now I can move on to replacing the transmission. Thx for your help.