Re-mounting bravo III - Seal/Gasket question

[swaldrum]

Quick question, I'm putting my bravo III drive back on (1999 B3 on a 7.4MPI). As far as I can see there's only 2 seals that have to be replaced. #3 and #4 on the diagram below:

http://www.mercruiserparts.com/Show_Pictures3.asp?dnbr=809808%2096&ivar=images/COMMON/18721.png&inbr=1943&bnbr=190&bdesc=DRIVESHAFT+HOUSING+AND+DRIVE+GEARS%28GASOLINE+ENGINE%29


saw another thread where the guy said he had replaced all 6?? Am I missing something?

thanks,

scott

 

[Bt Doctur]

Re: Re-mounting bravo III - Seal/Gasket question

Page 2A-28, copy and save
http://www.boatfix.com/merc/Servmanl/11/11a2r5x.pdf

 

[Don S]

Re: Re-mounting bravo III - Seal/Gasket question

You may need all 6 seals.
The ujoint shaft going into the coupler take 3
On the drive itself you glue in the odd shaped seal around the water port and the oring around the shift linkage.
On the bellhousing, you glue in an oring around the oil quick disconnect.
You need them all.

 

[swaldrum]

Re: Re-mounting bravo III - Seal/Gasket question

Bt Doctur, thanks for that pdf. Much better than what I was looking at.

Don, thanks, I see them all now.

None of the docs talk about glue-ing in the 2 seals, what do you use?

 

[TilliamWe]

Re: Re-mounting bravo III - Seal/Gasket question

Okay, I KNOW that Don is going to go off on this, but you do not need to replace those rubber gaskets, unless you damaged them while taking the drive off. I used to remove my B3 every year for winter storage, and I only replaced the o-rings once in 9 years. And then, just the two you are talking about, never the others. If upon a thorough visual inspection they are not damaged, they can be re-used, often. I needed nothing to hold mine in place when I replaced them, they stayed put on their own.