Re: 1958 Johnson QD19 10HP shift lever shaking

[bob-d]

Don, it was very strange. Not a normal vibration shaking. I had already replaced the o ring on the shift lever, and it has a nice smooth movement to it. This was a violent pulsating coming up the shift shaft, every few seconds, not constant. I should have taken a video but it’s apart now.
I thought it was the shift dog disingaging from the forward gear, and when I took it apart I would find a bunch of splintered metal. Everything looked ok though?
When I get the new gear I will post a picture of the two together. Maybe someone can pickup something that I’m missing as far as wear on the original gear that would cause this. The other thing I thought about is possibly the rubber on the prop hub had let go, causing the violent pulsating. Initial inspection of the hub looked ok. Will take another look at that tomorrow. Is there a definitive way to test a prop hub?
Bob D