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November 18, 2025 at 11:18 pm
#301630
If it is a 1953 3 HP, you will just see some spray coming out small holes next to the transom. There is no solid stream. A 1952 and 1953 are both model JW-10. The last year of the 2.5 was 1951 model HD-26.
As Sam said, Be sure the water is several inches above the cavitation plate, as the water has to be above the level of the pump or it won’t self-prime. If you have run it for a few minutes with the water level too low, you may have damaged the impeller.
Dave