Mercury MerCruiser Diesel Inboard 2.8L Operation & Maintenance Manual page 6

Owner and Operator Responsibilities..................................... 32
Dealer Responsibilities........................................................... 32
Cleaning Care Recommendation........................................... 32
Do Not Use Caustic Cleaning Chemicals........................ 32
Cleaning Gauges............................................................. 32
Cleaning Remote Controls.............................................. 32
Maintenance........................................................................... 32
Do-It-Yourself Maintenance Suggestions............................... 33
Inspection............................................................................... 33
Maintenance Schedule........................................................... 34
Routine Maintenance...................................................... 34
Scheduled Maintenance.................................................. 35
Engine Oil............................................................................... 35
Checking......................................................................... 35
Filling............................................................................... 36
Changing Oil and Filter.................................................... 36
ZF Marine Transmission Fluid................................................ 38
Check Fluid Level............................................................ 38
Add Fluid......................................................................... 39
Change Fluid................................................................... 39
Technodrive Transmission Fluid............................................. 40
Check Fluid..................................................................... 40
Add Fluid......................................................................... 41
Change Fluid................................................................... 42
Engine Coolant....................................................................... 44
Check Coolant................................................................. 44
Filling............................................................................... 45
Changing......................................................................... 45
2.8 Air Filter............................................................................ 45
Removal.......................................................................... 45
Inspection........................................................................ 46
Installation....................................................................... 46
4.2 Air Filter............................................................................ 46
Removal.......................................................................... 46
Inspection........................................................................ 47
Installation....................................................................... 48
Water-Separating Fuel Filter.................................................. 48
Cold Weather (Freezing Temperature), Seasonal Storage, and
Extended Storage................................................................... 70
Cold Weather (Freezing Temperature) Storage.............. 70
Preparing Your Power Package for Seasonal or Extended
Storage............................................................................ 70
Diagnosing Electronically Controlled Fuel System
Problems................................................................................ 74
Troubleshooting Charts.......................................................... 74
Starter Motor Will Not Crank Engine, or Cranks Slow..... 74
Engine Will Not Start, or Is Hard to Start......................... 74
Engine Runs Rough, Misses, or Backfires...................... 74
Page ii
Section 4 - Maintenance
Fuel System............................................................................ 52
Seawater System................................................................... 53
Replacing the Engine Coolant in the Closed-Cooling
System.................................................................................... 60
Corrosion Protection............................................................... 62
Lubrication.............................................................................. 65
Drive Belts.............................................................................. 65
Battery.................................................................................... 67
Section 5 - Storage
Recommissioning................................................................... 72
Section 6 - Troubleshooting
Draining........................................................................... 49
Replacing........................................................................ 49
Filling............................................................................... 51
Priming............................................................................ 52
Filling (Bleeding).............................................................. 52
Fuel Tank Cleaning and Flushing.................................... 53
Draining the Seawater System........................................ 53
Checking the Seawater Pickups...................................... 55
Cleaning the Seawater Strainer, if Equipped.................. 55
Flushing the Seawater System-Inboard Models........... 57
With the Boat out of the Water.................................... 57
With the Boat in the Water.......................................... 58
Engine Seawater Pump Inspection................................. 59
Draining the Closed-Cooling System.............................. 60
Filling the Closed-Cooling System.................................. 61
General Information......................................................... 62
Engine Corrosion Protection Components...................... 62
Removal...................................................................... 62
Cleaning and Inspection............................................. 63
Installation................................................................... 63
Antifouling Paint.............................................................. 64
Throttle Cable.................................................................. 65
Shift Cable....................................................................... 65
Drive Belt......................................................................... 65
Serpentine Belt................................................................ 66
Inspection.................................................................... 66
Replacement............................................................... 67
Battery Precautions for Multiple Engines.......................... 67
Seasonal Storage............................................................ 71
Extended Storage Instructions........................................ 72
Battery............................................................................. 72
Poor Performance........................................................... 74
Incorrect Engine Temperature......................................... 75
Low Engine Oil Pressure................................................. 75
Battery Will Not Charge................................................... 75
Remote Control Operates Hard, Binds, Has Excessive
Free-play, or Makes Unusual Sounds............................. 75
90-8M0133679 JUNE 2017
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