Recently replaced impeller, water pump housing in lower, water tube and the seals for water tube in lower and upper. When using muffs at full blast no water comming through hose inside boat. I can run water backwards and it comes out pee hole and bottom of prop with no problem. I also used created suction on water hose inside boat and can pull water through but will not pump through by itself. Today I put boat in the water lowered stern drive all the way, ran engine still no water comming through, but once again created suction from inside boat and got some water to come through, but no consistent flow. Reconnected water hose to block and ran in forward gear for about 5 min. hoping that water would flow to engine. Temp light came on I shut down and put back on trailer. Intend to pull entire stern drive in one peice to see if there is problem where it hooks into bell housing around water shuter as i can see water dripping on top of shift shaft. Please help with any other ideas as to what problem may be.
Additonal history on repair: had boat with mechanic, he was not excited to see it. They replaced hydraulic shift actuater and rebuilt carb and got boat running and shifting great. Prior to this the water pump would pull through fine. Was told that boat was not cooling properly and they would fix. Next thing I know they tell me the shift shaft, reverse lock, water tube and the water pump housing were damaged when they took it apart. My guess is they went into the lower to replace impeller but it is at the top. I managed to find all these parts in lower and have replaced. Boat runs and shifts great but just not cooling. Help!
Spearman
Additonal history on repair: had boat with mechanic, he was not excited to see it. They replaced hydraulic shift actuater and rebuilt carb and got boat running and shifting great. Prior to this the water pump would pull through fine. Was told that boat was not cooling properly and they would fix. Next thing I know they tell me the shift shaft, reverse lock, water tube and the water pump housing were damaged when they took it apart. My guess is they went into the lower to replace impeller but it is at the top. I managed to find all these parts in lower and have replaced. Boat runs and shifts great but just not cooling. Help!
Spearman