SERVICE MANUAL NUMBER 28
TROUBLESHOOTING
Drive Shaft Housing Noise (Continued)
Cause
Special Instructions
Remove U-joint coupling end yoke and
insert into gimbal bearing and engine
coupling. Rotate shaft back and forth.
If play is excessive, replace U-joint
coupling end yoke and/or engine
coupler, as necessary.
Worn U-joint shaft splines and/or
engine coupler splines.
Adjust alignment. Ensure that
alignment tool moves in and out of
coupler freely. After proper alignment
has been obtained, check for a crooked
coupler by rotating engine coupler 1/2 turn
and rechecking alignment. If
Engine alignment incorrect or engine
coupler crooked.
proper alignment is no longer
observed, coupler is crooked and must
be replaced. (Refer to SECTION 2)
Replace gimbal bearing. (Refer to
SECTION 4)
IMPORTANT: Gimbal bearing and carrier
MUST BE replaced as an assembly be-
cause they are a matched set. Failure to
do this may result in a loose bearing fit in
carrier.
Gimbal bearing rough.
Loose gimbal bearing.
Reinstall bearing assembly using a new
tolerance ring if carrier is loose in
gimbal housing. If bearing is loose in
carrier, bearing assembly must be
replaced. (Refer to SECTION 4)
Gimbal bearing not fully seated in
gimbal housing.
Drive bearing assembly into place.
Excessive clearance between gimbal
ring and gimbal housing. This could
cause misalignment between bell
housing and gimbal housing and also
may allow gimbal ring to vibrate up
and down.
Check and adjust clearance. (Refer to
SECTION 4)
Check for uneven mount height, or
loose or soft mounts. Make sure there
is clearance between flywheel housing
and fiber washer. If no clearance exists,
mounts have probably sagged. Install
mounts correctly or replace, as
necessary.
Improperly installed or failed rear
engine mounts. This will affect engine
alignment, but usually is not detectable
with engine alignment tool.
INDEX
90-863160
MAY 2000
Page 1C-5
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | MerCruiser Sterndrives 90-863160 |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 3 out of 3)
Marine readers have rated Mercury MerCruiser Bravo Outdrives Sterndrives Marine Engines Service Manual Number 28 3.0 out of 3.0 based on 1 product reviews. I could not find any mention of the seawater pump assembly.
Maybe I have the wrong unit