We did the same test on a boat lift raising and lowering the boat so the outdrive was at different heights and same results. Still have the pumping issue. Thoughts? My son thinks it is the grommets at the top and bottom of the water tube leading to the engine but that is on the output side of...
Pump housing number is 303070. Water tube was installed first before lower unit is installed. Water tube is connected as water pumps fine at low idle. Impeller is located about 6 inches above cavitation plate so no sure how water should be 6"-8" above the impeller at all times in a...
My 1956 Sea King (12D13 or 12D14) is having water pump issues and I can not figure it out. A little challenging to explain but here it goes and hope someone can help me out! Engine was overheating while on plane (on a small aluminum boat). Confused me and my son (father son project and great...
