2001 wellcraft 270 costal powered by a mercruiser 7.4 mpi with a bravo 3. Doesn’t accelerate.

[tpenfield]

hub may be slipping?

It's a Bravo 3 . . . no such thing as slipping.

 

[Cruis]

My thoughts . . .

- That is a big/heavy boat for a single engine, even a 7.4 . . . So, lots of load on the outdrive/engine.
- Being a 2001 . . . probably 310 HP and running the MEFI-3 controller
- I tend to agree maybe more the outdrive rather than the coupler. If it were the coupler, I'd expect it to fail more completely and quickly.
- The clutch is in the top of the drive, and if you are loosing gear oil, then the clutch could be burning/glazing.

I'd pull the drive and see what you discover . .

Thanks for your thoughts. To the naked eye what will the clutch look like if burnt? I read that I can look shiny.

My thoughts . . .

- That is a big/heavy boat for a single engine, even a 7.4 . . . So, lots of load on the outdrive/engine.
- Being a 2001 . . . probably 310 HP and running the MEFI-3 controller
- I tend to agree maybe more the outdrive rather than the coupler. If it were the coupler, I'd expect it to fail more completely and quickly.
- The clutch is in the top of the drive, and if you are loosing gear oil, then the clutch could be burning/glazing.

I'd pull the drive and see what you discover . . .

Thanks, I will take the clutch apart and find out what’s going on. I read that the clutch can have a shiny glaze when burnt. Is this true? Also where the clutch engages with the gear would there be any damages? In other word do I need to replace the entire set up or just the clutch?

 

[tpenfield]

The clutch can be glazed, but it may not look all that bad. Post some pictures when you have it out.

It should look something like this . . .

.