skanpercher32
Cadet
- Joined
- Aug 6, 2006
- Messages
- 15
We have just installed a new water pump impeller on the lower unit. The impeller was installed with a clockwise set, meaning if you were looking down on top of the impeller the vane tips would be bent to the left. prior to installing the lower unit we ran a hose up the water tube to verify clear water flow, the water flowed up the water pump discharge tube and out from the exhaust/water discharge near the prop, it looked great. We installed the lower unit, and started the engine in a large drum, with about 7 inches of water covering the water pump intake. The engine started right up, however as we ran it for a short period of time we never saw water flow from the engine either from the exhaust area near the prop or from two "power flow" discharge ports on the intermidate housing on the engine. We shut it down promptly, and saw "smoke" comming from the "powerflow" ports but never any water. Finally the "high temp" alarm came in. We 're lost as to what we could have done wrong, or what our next step should be. We had done a compression check on this engine all 3 cylinders were 125#, so we really would like to get this up and running. Should we drop the lower unit and try turning the shaft/pump by hand in a bucket of water? Will that work? Help summer is half over. Thanks