I have a 1986 Cobalt Ski boat that has a mercruiser 260 engine and alpha one outdrive. This weekend we somehow spun the coupler and need it replaced. Any body?
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- Thread starter mhenson07
- Start date
The one on the back of the engine?
Sure it's not the prop hub spun out?
What did it do? (I guess it went WAHHHHHHH! but didn't go)
Sure it's not the prop hub spun out?
What did it do? (I guess it went WAHHHHHHH! but didn't go)
Yeah it went wahhhh. But also a burning rubber smell.
I'll go with stripped prop hub too. The burnt rubber smell is the smoked shaft seals.
I think it's the back of the engine if you smelled smoke. That's bad....Need to pull the outdrive off.....then hoist the motor out....
But if you smelled rubber, what was burning? the coupler? I was told it was the coupler, not the prop.
The rubber on the hub which is usually pressed into the center of the prop assembly. It is designed to be the weak link so you don't damage other more expensive components if you hit something. The rubber breaks free and then the hub spins inside the prop when you give it gas. Thats the rubber burning smell. It melts as the hub spins. Mine started off like a bad clutch. Prop still spun but engine would rev and had a hard time going forward. Kept trying since I was several miles offshore, so then it eventually wouldn't spin at all. Motor rev'd high but little to no forward motion. Got towed in, pulled the prop, took it to a prop shop and they pressed in a new hub for $35.
