Mercury MerCruiser 5.7 Horizon, User Manual

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Page ii 90-899883173 DECEMBER 2007
Drain Plug and Bilge Pump...........................44
Basic Boat Operation (DTS Models).................... 44
Launching and Boat Operation..................... 44
Operation Chart.......................................... 44
Starting and Stopping the Engine................. 45
Starting the Engine..................................... 45
Stopping the Engine....................................46
Throttle‑Only Operation.................................46
Freezing Temperature Operation..................47
Drain Plug and Bilge Pump...........................47
Protecting People in the Water.............................47
While You Are Cruising....................................47
While Boat Is Stationary.................................. 47
High‑Speed and High‑Performance Operation.... 48
Passenger Safety in Pontoon Boats and Deck
Boats.................................................................... 48
Boats Having An Open Front Deck..................48
Boats With Front‑Mounted, Raised Pedestal
Fishing Seats...................................................48
Wave and Wake Jumping.................................... 49
Impact with Underwater Hazards......................... 49
Conditions Affecting Operation.............................50
Weight Distribution (Passengers and Gear)
Inside the Boat.............................................. 50
The Bottom of the Boat................................. 50
Cavitation...................................................... 50
Ventilation..................................................... 51
Elevation and Climate................................... 51
Getting Started..................................................... 51
20‑Hour Break‑In Period............................... 51
After Break‑In Period.....................................51
End of First Season Checkup....................... 52
Section 4 - Specifications
Cruising RPM....................................................... 54
Fuel Requirements...............................................54
Fuel Ratings.....................................................54
Using Reformulated (Oxygenated) Gasoline
(USA Only).......................................................54
Gasoline Containing Alcohol........................... 54
Engine Oil.............................................................55
Engine Specifications...........................................56
Fluid Specifications.............................................. 57
Engine...........................................................57
Transmission.................................................57
Section 5 - Maintenance
Owner/Operator Responsibilities..........................60
Dealer Responsibilities.........................................60
Maintenance.........................................................60
Do‑It‑Yourself Maintenance Suggestions.............61
Inspection.............................................................61
Maintenance Schedule—Inboard Models............ 62
Routine Maintenance.................................... 62
Scheduled Maintenance................................62
Maintenance Log..................................................63
Engine Oil.............................................................64
Checking....................................................... 64
Filling.............................................................64
Changing Oil and Filter................................. 65
Easy Engine Oil Drain System......................65
Engine Oil Drain Pump..................................66
Changing the Oil Filter.................................. 67
Transmission Fluid............................................... 67
Checking While the Engine is Warm............... 67
Checking While Engine is Cold........................68
Changing......................................................... 68
Engine Coolant.....................................................68
Checking....................................................... 68
Filling.............................................................69
Changing ......................................................70
Battery..................................................................70
Multiple EFI Engine Battery Precautions.......70
Cleaning the Flame Arrestor................................ 71
Positive Crankcase Ventilation Valve (PCV)... 72
Changing.....................................................72
Cleaning The IAC Muffler.....................................72
Water‑Separating Fuel Filter................................ 73
GEN III Models..............................................74
Removal......................................................74
Installation...................................................75
Lubrication............................................................75
Throttle Cable................................................75
Transmission Linkage................................... 76
Serpentine Drive Belt........................................... 77
Checking..........................................................77
Replacing Belt and/or Adjusting Tension.........77
Flushing The Power Package.............................. 78
Horizon Models................................................78
The Boat Out of the Water...............................80
The Boat In the Water......................................81