I replaced my impeller and intake screen on my lower unit. The parts diagram shows what looks like an o-ring that goes on the driveshaft above the impeller housing. How does that work when the shaft is spinning? Wouldn't it destroy the oring when it spins? My old one did not have anything...
I have seen a revision for the later 70hp Johnson outboards on how to add a tell tale but it did not include the 1975. Is the procedure the same and in the same location as the later year models? I like the idea of better drainage for winter and being able to see the water pressure the top of...
I bought a boat with a 1967 Mercury 500 Thunderbolt outboard. I am not familiar yet with this engine. The previous owner put a new starter on it and was working on wiring in a different starter solenoid. I plan on rewiring the motor. Am I able to use a newer starter solenoid as long as I...
