Dirty drive oil, what does it mean??
#1
Registered
Thread Starter
![Default](/forums/images/icons/icon1.gif)
1990 Bravo 1s. 1 is fine, the other is very dirty. When I drained them I drained through a paint strainer. Neither drive had any pieces, nor anything on the plug magnets except some dust.
What would cause the dirty oil? I am pushing about 650hp in each motor. I have drive showers.
If a rebuild is needed what is the best way to go?
What would cause the dirty oil? I am pushing about 650hp in each motor. I have drive showers.
If a rebuild is needed what is the best way to go?
#3
Platinum Member
![](https://www.offshoreonly.com/forums/images/icons/platinum_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
gotta be more specific than "dirty".
color?
sparkly suspension?
caramel streaks?
give us something to go on here.
color?
sparkly suspension?
caramel streaks?
give us something to go on here.
#6
Charter Member#157
![](https://www.offshoreonly.com/forums/images/icons/charter_member_star.gif)
Join Date: Oct 2000
Location: Minneapolis, Mn, Usa
Posts: 1,859
Likes: 0
Received 3 Likes
on
3 Posts
![Default](/forums/images/icons/icon1.gif)
Originally Posted by stecz20
how often do you change the drive oil????
every season or 50 hours
is it dirty as in dark?
or diry as in MILKY?
is it hte port side or starboard?
is the one that is running counter rotation? I heard counter roating is harder on parts. Maybe its the cause?
just a thought
__________________
This Cat is trying to keep up with the Big Dogs
This Cat is trying to keep up with the Big Dogs
#9
Guest
Posts: n/a
![Default](/forums/images/icons/icon1.gif)
For $12, get it analyzed. www.analaboratories.com. No affiliation, just happy customer. Other places are http://oilguard.com/oil_analysis_prog.php, or www.blackstone-labs.com.
#10
Registered
Join Date: Sep 2003
Location: Toledo, Ohio/Las Vegas, NV
Posts: 3,029
Likes: 0
Received 1 Like
on
1 Post
![Default](/forums/images/icons/icon1.gif)
Sounds like it might be clutch getting ready to let go. I had similar finding in one drive only, but I had big time metal shavings in mine. Found a twisted prop shaft and vertical shaft in the lower. Have replaced upper and lower with Max Machine Worx, but have not disassembled the spent upper yet to see exactly what the problem was (besides the 950 H.P. and heavy throttle hand of the previous owner!).
Thread
Thread Starter
Forum
Replies
Last Post
Canada Jeff
Drives and Lower Units
10
07-19-2007 02:38 PM
jeff32
General Boating Discussion
14
06-28-2006 08:48 AM
Velocity Tom
General Boating Discussion
4
07-16-2003 10:13 AM