Mercury 2.8 Diesel Operation & Maintenance Manual page 45

Table of Contents
Owner and Operator Responsibilities................................... 38
Dealer Responsibilities......................................................... 38
Maintenance......................................................................... 38
Do-It-Yourself Maintenance Suggestions............................. 38
Inspection............................................................................. 38
Maintenance Schedules....................................................... 39
Routine Maintenance..................................................... 39
Scheduled Maintenance................................................ 40
Engine Oil............................................................................. 41
Checking........................................................................ 41
Filling............................................................................. 41
Changing Oil and Filter.................................................. 42
Sterndrive Gear Lube........................................................... 43
Checking........................................................................ 44
Filling............................................................................. 44
Changing....................................................................... 45
Power Trim Fluid.................................................................. 47
Checking........................................................................ 47
Filling............................................................................. 48
Changing....................................................................... 49
Power-Assisted Steering Fluid............................................. 49
Checking........................................................................ 49
Filling............................................................................. 50
Changing....................................................................... 50
Engine Coolant..................................................................... 50
Check Coolant............................................................... 50
Filling............................................................................. 50
Changing....................................................................... 51
2.8 Air Filter.......................................................................... 51
Removal......................................................................... 51
Inspection...................................................................... 52
Installation...................................................................... 52
4.2 Air Filter.......................................................................... 53
Removal......................................................................... 53
Inspection...................................................................... 53
Installation...................................................................... 54
Water-Separating Fuel Filter................................................ 54
Draining......................................................................... 55
Replacing....................................................................... 55
Filling............................................................................. 57
Fuel System.......................................................................... 58
Priming........................................................................... 58
Filling (Bleeding)............................................................ 58
Fuel Tank Cleaning and Flushing.................................. 59
Seawater System................................................................. 59
Draining the Seawater System...................................... 59
Sterndrive Water Inlets Check....................................... 61
Checking the Seawater Pickups.................................... 62
Cleaning the Seawater Strainer, if Equipped................. 62
90-8M0113987 DECEMBER 2015
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Section 4 - Maintenance
Replacing the Engine Coolant in the Closed-Cooling System
.............................................................................................. 67
Corrosion Protection............................................................. 69
Lubrication............................................................................ 79
Maintaining Torques............................................................. 84
Propellers............................................................................. 85
Drive Belts............................................................................ 90
Battery.................................................................................. 94
Flushing the Seawater System-Sterndrive Models..... 64
With the Boat out of the Water .............................. 64
With the Boat in the Water .................................... 66
Engine Seawater Pump Inspection................................ 67
Draining the Closed-Cooling System............................. 67
Filling the Closed-Cooling System................................. 68
General Information....................................................... 69
Engine Corrosion Protection Components.................... 69
Removal ................................................................ 69
Cleaning and Inspection ........................................ 70
Installation ............................................................. 71
Sterndrive Corrosion Protection Components............... 72
Continuity Circuit-Bravo Sterndrive............................. 75
MerCathode................................................................... 77
Boat Bottom Care.......................................................... 78
Painting Your Power Package....................................... 78
Sterndrive Surface Care................................................ 79
Steering System............................................................ 79
Throttle Cable................................................................ 81
Shift Cable..................................................................... 81
Transom Assembly........................................................ 82
Engine Coupler.............................................................. 82
Driveshaft Extension Models......................................... 82
Sterndrive, Bellows, and Engine Alignment................... 83
Bravo Gimbal Ring U-bolt Nuts...................................... 84
Engine Mounts............................................................... 85
Bravo Sterndrive Propeller Removal............................. 85
Bravo One Models ................................................. 86
Bravo Two Models ................................................. 86
Bravo Three Models .............................................. 87
Bravo Sterndrive Propeller Installation.......................... 88
Bravo One Models ................................................. 88
Bravo Three ........................................................... 89
Serpentine Belt.............................................................. 90
Inspection .............................................................. 90
Replacement ......................................................... 91
Power-Assisted Steering Pump Belt.............................. 92
Inspection .............................................................. 92
Adjustment ............................................................ 92
Replacement ......................................................... 93
Battery Precautions for Multiple Engines ...................... 94
Section 4 - Maintenance
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