Mercury Mercruiser Tow Sport 5.7 MPI Manual page 6

Cruising RPM......................................................................... 34
Fuel Requirements................................................................. 34
Fuel Ratings...................................................................... 34
Using Reformulated (Oxygenated) Gasolines (USA Only)
.......................................................................................... 34
Gasolines Containing Alcohol........................................... 34
Engine Oil............................................................................... 35
Owner/Operator Responsibilities............................................ 40
Dealer Responsibilities........................................................... 40
Maintenance........................................................................... 40
Do-It-Yourself Maintenance Suggestions............................... 40
Inspection............................................................................... 41
Maintenance Schedule-Inboard Models............................... 41
Routine Maintenance...................................................... 41
Scheduled Maintenance.................................................. 41
Maintenance Log.................................................................... 42
Engine Oil............................................................................... 43
Checking........................................................................... 43
Filling................................................................................ 44
Changing Oil and Filter..................................................... 45
Easy Engine Oil Drain System.................................... 45
Engine Oil Drain Pump................................................ 45
Changing Filter............................................................ 46
Transmission Fluid................................................................. 46
Checking While the Engine is Warm................................ 46
Checking While Engine is Cold......................................... 46
Cold Weather or Extended Storage........................................ 58
Preparing Power Package for Storage............................ 58
Engine and Fuel System Preparation......................... 58
Draining the Seawater System............................................... 59
Drain System Identification.............................................. 59
Air Actuated Single-Point Drain System...................... 59
Manual Single-Point Drain System............................. 60
Three-Point Manual Drain System.............................. 60
Multipoint Drain (MPD) System................................... 61
Air Actuated Single-Point Drain System.......................... 61
Boat in the Water........................................................ 61
Boat Out of the Water................................................. 63
Diagnosing EFI Problems....................................................... 74
Diagnosing DTS Problems..................................................... 74
Engine Guardian System........................................................ 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............................. 75
Page ii
Section 4 - Specifications
Engine Specifications............................................................. 35
Section 5 - Maintenance
Cleaning the Flame Arrestor................................................... 47
Water-Separating Fuel Filter (MPI)......................................... 48
Lubrication.............................................................................. 50
Serpentine Drive Belt.............................................................. 51
Flushing The Power Package................................................. 52
Battery.................................................................................... 54
Section 6 - Storage
Draining Water from the Gen III Cool Fuel Module................ 71
Battery Storage....................................................................... 72
Recommissioning the Power Package................................... 72
Section 7 - Troubleshooting
Poor Performance.................................................................. 75
Excessive Engine Temperature.............................................. 75
Insufficient Engine Temperature............................................. 75
Low Engine Oil Pressure........................................................ 76
Battery Will Not Recharge...................................................... 76
Tow Sports 5.7 MPI With Gen III Cool Fuel, Without
Emissions Control........................................................... 35
Fluid Specifications......................................................... 36
Engine......................................................................... 36
Transmission............................................................... 37
Changing.......................................................................... 46
Positive Crankcase Ventilation Valve (PCV).................... 47
Changing..................................................................... 47
Water-Separating Fuel Filter........................................... 48
Gen III Models................................................................. 49
Removal...................................................................... 49
Installation................................................................... 49
Throttle Cable.................................................................. 50
Transmission Linkage..................................................... 50
Checking........................................................................... 51
Replacing Belt and/or Adjusting Tension.......................... 52
Tow Sports........................................................................ 52
Multiple EFI Engine Battery Precautions......................... 54
Manual Single-Point Drain System.................................. 65
Boat in the Water........................................................ 65
Boat Out of the Water................................................. 66
Three-Point Manual Drain System.................................. 67
Boat in the Water........................................................ 67
Boat Out of the Water................................................. 68
Multipoint Drain (MPD) System....................................... 68
Boat Out of the Water................................................. 68
Boat in the Water........................................................ 70
90-8M0076545 NOVEMBER 2012
eng