- Oct 4, 2006
- 2,335
- Boat Info
- 2003 280DA and 1995 Sea Ray 175
- Engines
- Twin 4.3l and 3.0l, all w/ AlphaI GenII drives
Before the beginning of last season I had the shift cables replaced because the shifts were clunky, stiff, and in the case of the port engine, not always crisp. The new cables corrected the stiffness and the big clunks, but highlighted a different problem with the port drive. Apparently, over time the cables stretch and make it impossible to synchronize the engine interrupt with the mechanical engagement. This contributes to the stiffness, and is the root cause of the big clunk.
Once the cables were replaced, the problem with the port engine became very clear. It would not shift smoothly into reverse, rather it would rattle around until it caught. The problem was a worn dog-clutch. I possibly could have gotten through the season with it but I just replaced the entire lower unit instead.
Here is a picture of a dog clutch:
View attachment 25083
Thanks for this info. This sounds exactly what my issue may be with one of my drives. It won't engage as easily as the other and will want to rattle around until I give it a bit more lever to get it to engage. I'll check and adjust the cable, but this clutch may be worn on mine also.
Tom