Ford 302 with a Velvet Drive transmission.
Engine runs well.
Boat went through some mud for a couple of minutes and now does not want to idle well in neutral and when I put it in gear in forward or reverse it immediately stalls. When the engine starts in neutral, the shaft turns slowly a couple of turns. I don't know if it did this before the mud encounter or not. Before the incident, I had none of these problems. Prop has been inspected and seems to be in good shape.