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D7.3L D-TRONIC DIESEL ENGINES - BRAVO MODELS
Torque Specifications
Speedometer Pickup Barb Fitting
Exhaust Pipe or Block-off Plate
Power Steering Hydraulic Hose Fittings
Power Trim Pump Hose Fittings
Propeller Nut (Bravo One and Two)
Propeller Nuts (Bravo Three)
Propeller Nuts (Bravo Three)
Rear Engine Mounts
Steering Cable Coupler Nut
Steering System (Pivot Bolts)
Sterndrive Unit Fasteners
Transom Assembly Fasteners
Seawater Pickup Fitting
Power Trim Cylinder Fasteners
1
: Amount specified is MINIMUM.
Serial Number Decal Placement
There are three sets of engine, transom assembly and sterndrive serial number decal strips
provided with each power package. One set should be used for each of the following:
Engine Specification Decal
Warranty Registration Card
Operation and Maintenance Manual identification page.
Corrosion Protection
MerCruiser power packages are equipped with anodes, to help protect them from galvanic
corrosion under moderate conditions. However, for severe conditions, or if using a stainless
steel propeller, it is recommended that a Quicksilver Anti-Corrosion Anode Kit and/or a Mer-
Cathode System be installed (some models have a MerCathode System as standard equip-
ment). A MerCathode Monitor also is available to allow the operator to check the operation
of the MerCathode System with the push of a button. (Refer to "Quicksilver Accessories
Guide" for part numbers.)
Boats which are connected to AC shore power, require additional protection to prevent de-
structive low voltage galvanic currents from passing through the shore power ground wire.
A Quicksilver Galvanic Isolator can be installed to block the passage of these currents while
still providing a path to ground for dangerous fault (shock) currents. (Refer to "Quicksilver
Accessories Guide" for part number.)
IMPORTANT: If AC shore power is not isolated from boat ground, the MerCathode
System and anodes may be unable to handle the increased galvanic corrosion poten-
tial.
Page 6 of 90
DESCRIPTION
DESCRIPTION
1
Front
1
1
Rear
TORQUE
lb-in.
lb-ft
10-15
20-25
20-25
100-150
55
100
60
35-40
35
25
50
20 25
45
Tighten until they bottom out.
Nm
1.2-1.6
27-34
27-34
11-16
75
136
81
47-54
47
34
68
27-34
5
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