Bellow vent hole? Alpha one gen 1 Merc

[Jamz33]

Is it possible for water to get in the bellows if it wasn’t a good seal between bell housing and drive or does the rubber o ring that goes inside bell housing keep water out? I want to try and get as much info as I can so if the bellow isn't bad I can move on to looking for the next possible cause.

 

[nola mike]

Is it possible for water to get in the bellows if it wasn’t a good seal between bell housing and drive?

The bellhousing gasket doesn't do much (if anything?) to keep water out of the bellows. It keeps the shift cavity dry, and I guess maybe keeps water from corroding the outdrive to the bellhousing. But the big o-ring is what keeps the water out of the bellows. So no seal there=water in bellows.

 

[Jamz33]

The bellhousing gasket doesn't do much (if anything?) to keep water out of the bellows. It keeps the shift cavity dry, and I guess maybe keeps water from corroding the outdrive to the bellhousing. But the big o-ring is what keeps the water out of the bellows. So no seal there=water in bellows.

The big o ring was sealed properly. I’ll look the bellow over really good today and see if I find a problem with it.

 

[Jamz33]

I found the source of my leak

 

[tank1949]

I found the source of my leak

Feel the bearings to be sure that rust hasn't set up. Welcome to merc-loosers!

 

[Bt Doctur]

Use bellows adhesive, 3M Weatherstrip, contact cement ,3M Spray adhesive
BUT NOT SILLYCONE

 

[Jamz33]

Ok thanks everyone

 

[achris]

List of parts that will need to replaced after 'water in the bellows'...

Gimbal bearing
Uni joints
Drive front seal (and replace/repair/speedi-sleeve the yoke)
The bellows itself.

You also have a torn shift cable bellows, so that needs to be replaced too...

Merc do a 'transom seal kit', which contains the bellows (all 3), the gimbal bearing and the gaskets and hose clamps. Part number for Alpha One housing (NOT Gen II) is 30-803097T1...



Chris.......