First off, these forums have been a great help to me in my endeavor to get my 1964 9.5hp sportwin running. After rebuilding the carb, replacing ign. components and fuel pump it runs really well. But the last time I had it out it started popping out of gear. The shift lever has a lot of play in it but it did seem to go all the way into gear. I pulled the lower housing expecting to find worn out gears etc. but upon inspection I find nothing wrong with the drive except for bad seals letting all the oil out and water in. It appears that the only thing that keeps it in gear is the detent spring so the play in the shift lever shouldn't affect it? Any ideas?
Please explain...