Mercury INSTALLATION MANUAL D7.3L D-TRONIC - Manual (Page 37)

D7.3L D-TRONIC DIESEL ENGINES - BRAVO MODELS
Page 37 of 90
Drive Unit Seawater Routing
Seawater for engine cooling is supplied through a separate seawater pickup, not through
the drive unit. Therefore, it is necessary to block the drive unit seawater passage and to cut
the water hose that is located between the bell housing and the gimbal housing. This allows
water to continue to circulate through the drive unit for cooling.
BLOCK-OFF PLATE
1. Install block-off plate with gasket. Torque screws with star washers to 45 lb-in. (5 Nm).
75313
c
a
b
75314
a b
c
a -
Plate
b -
Gasket
c -
Screw And Washer
CAUTION
Avoid drive unit damage. Quick release button on gear lube monitor 90
°
hose fitting
may not lock on gimbal housing if touching or depressed by block-off plate. Ensure
quick release button does not contact block-off plate. Failure to do so could result
in a loose
90 ° fitting causing a loss of gear lube and damage to drive unit.
2. Position quick release button on hose fitting away from block-off plate. Release button
must not contact block-off plate.
71998
d
OK
b
d
a
c
a -
Water Inlet Fitting
b -
Star Washer and Screw
c -
90 ° Hose Fitting
d -
Quick Release Button