Pulling a Bravo3 off.

alldodge

Moderator
Staff member
Joined
Mar 8, 2009
Messages
42,278
Re: Pulling a Bravo3 off.

The problem of the OP in the other link was mainly 2-cups of water came out of his drive instead of oil. If he checked the oil every year this could have been avoided.
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,545
Re: Pulling a Bravo3 off.

The problem of the OP in the other link was mainly 2-cups of water came out of his drive instead of oil. If he checked the oil every year this could have been avoided.
He had water in his bellows which is what caused the water in his gear oil. The driveshaft rusted and ruined the seal going into his drive. If he had pulled his drive every year, this could have been avoided.

I agree he needed to be checking his drive oil but pulling the drive after the first year after he had his service would have possibly prevented his issue. He waited 2 years!:facepalm:
 
Last edited:

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,545
Re: Pulling a Bravo3 off.

This is from a Mercruiser manual

attachment.php
 
Last edited:

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
12,793
Re: Pulling a Bravo3 off.

The seal for the input shaft keeps oil in but is not designed to keep water out (maybe it should be!) so that is certainly possible. At the least he should have been cracking the drain plug to see if he got water out before gear oil. If you want a low maintenance marine power source you should not bother with sterndrives. Outboards, while they are very complex in the power head area, are definitely less work in the drivetrain area. No u-joints, bellows, gimble, etc. If you buy one new and run it 10 years, your maintenance will be much less than an I/O. But the eventual repairs can cost even more due to parts prices and complexity.
 
Top