MerCruiser 8.1 H.O. Manuals

MerCruiser 8.1 H.O. Manuals

Manuals and User Guides for MerCruiser 8.1 H.O.. We have 2 MerCruiser 8.1 H.O. manuals available for free PDF download: User Manual

MerCruiser 8.1 H.O. User Manual

MerCruiser 8.1 H.O. User Manual (106 pages)

with Emissions Control

Brand: MerCruiser | Category: Engine | Size: 5 MB

Table of Contents

Read this Manual Thoroughly
3
Table of Contents
5
Section 1 - Warranty
9
Warranty Registration: Outside the United States and Canada
10
Warranty Registration: United States and Canada
10
Mercury Product Protection Plan: United States and Canada
11
Transfer of Warranty
11
Mercury Mercruiser Limited Warranty (Gasoline-Fueled Products Only)
12
3-Year Limited Warranty against Corrosion
14
Global Warranty Charts
15
Mercury Installation Quality Certification Program
17
Section 1 - Warranty
17
California Emissions Limited Warranty
18
Emission Control Information Label
23
- Owner Responsibility
  24
Emission Certification Star Label
24
- Section 2 - Getting to Know Your Power Package
  27
Identification
28
- Engine Serial Number Decal
  28
Lanyard Stop Switch
28
Instrumentation
29
- System View
  29
- Digital Gauges
  30
- Analog Gauges
  31
Remote Controls (Non-DTS Models)
31
- Remote Controls
  31
  - Panel Mount Features
    32
  - Console Mount Features
    33
  - Zero Effort Features
    33
Remote Controls (DTS Models)
34
Electrical System Overload Protection
39
Audio Warning System
41
- Testing the Audio Warning System
  42
Audio Warning System
42
- Caution
  42
- Severe
  42
- Obdm
  43
- Testing the Audio Warning System
  43
Guardian Strategy
43
Section 3 - on the Water

45
- Safe Boating Suggestions
  46
- Be Alert to Carbon Monoxide Poisoning
  47
  - Good Ventilation
    47
  - Poor Ventilation
    48
- Basic Boat Operation (Non-DTS Models)
  48
  - Launching and Boat Operation
    48
    
    March
    49
    
    Operation Chart
    49
    
    Starting and Stopping the Engine
    49
    
    Starting the Engine
    49
    
    Drain Plug and Bilge Pump
    50
    
    Freezing Temperature Operation
    50
    
    Stopping the Engine
    50
    
    Throttle-Only Operation
    50
- Basic Boat Operation (DTS Models)
  50
  - Launching and Boat Operation
    50
    
    Operation Chart
    51
    
    Starting and Stopping the Engine
    51
    
    Starting the Engine
    51
    
    Stopping the Engine
    52
    
    Drain Plug and Bilge Pump
    53
    
    Freezing Temperature Operation
    53
    
    Throttle-Only Operation
    53
- Protecting People in the Water
  54
  - While You Are Cruising
    54
  - While Boat Is Stationary
    54
- High-Speed and High-Performance Operation
  54
- Passenger Safety in Pontoon Boats and Deck Boats
  54
  - Boats Having an Open Front Deck
    54
  - Boats with Front-Mounted, Raised Pedestal Fishing Seats
    55
- Wave and Wake Jumping
  55
- Impact with Underwater Hazards
  56
- Conditions Affecting Operation
  56
- Getting Started
  57
  - 20-Hour Break-In Period
    57
  - After Break-In Period
    58
  - End of First Season Checkup
    58
- Cruising RPM
  60
- Fuel Requirements
  60
- Engine Oil
  61
- Engine Specifications
  62
- Fluid Specifications
  62
  - Engine
    62
  - Transmission
    63
- Owner/Operator Responsibilities
  66
- Dealer Responsibilities
  66
- Maintenance
  66
- Do-It-Yourself Maintenance Suggestions
  67
- Inspection
  67
- Maintenance Schedule-Inboard Models
  68
  - Routine Maintenance
    68
  - Scheduled Maintenance
    68
- Maintenance Log
  69
- Engine Oil
  70
  - Checking
    70
  - Filling
    70
  - Changing Oil and Filter
    71
  - Engine Oil Drain Pump
    71
Section 4 - Specifications

71
Section 5 - Maintenance

71
- Changing the Oil Filter
  72
- Transmission Fluid
  72
  - Checking While the Engine Is Warm
    72
  - Checking While Engine Is Cold
    72
  - Changing
    73
- Engine Coolant
  73
  - Checking
    73
  - Filling
    73
  - Changing
    74
- Battery
  74
  - Multiple EFI Engine Battery Precautions
    74
- Cleaning the Flame Arrestor
  75
- Cleaning the IAC Muffler (Non-DTS Models Only)
  76
- Water-Separating Fuel Filter
  77
  - GEN III Models
    77
    
    Removal
    77
    
    Installation
    78
- Lubrication
  79
  - Throttle Cable
    79
  - Shift Cable - Typical
    79
  - Engine Coupler
    79
  - Driveshaft Extension Models
    80
- Serpentine Drive Belt
  81
  - Belt Routing
    81
  - Checking
    81
  - Replacing
    82
- Flushing the Seawater System-Inboard Models
  82
  - The Boat out of the Water-Inboard Models
    82
  - The Boat in the Water-Inboard Models
    83
- Cold Weather or Extended Storage
  86
  - Preparing Power Package for Storage
    86
    
    Engine and Fuel System Preparation
    87
- Draining the Seawater System
  88
  - Drain System Identification
    88
    
    Air Actuated Single Point Drain System
    88
    
    Air Actuated Single Point Drain System
    89
    
    Boat in the Water
    89
    
    Manual Drain System
    89
    
    Boat out of the Water
    91
    
    Boat in the Water
    93
    
    Manual Drain System
    93
    
    Boat out of the Water
    94
- Battery Storage
  95
- Power Package Recommissioning
  95
- Diagnosing EFI Problems
  98
- Diagnosing DTS Problems
  98
- Engine Guardian System
  98
- Troubleshooting Charts
  98
- Section 7 - Troubleshooting
  99
- Owner Service Assistance
  104
  - Local Repair Service
    104
  - Service Away from Home
    104
  - Stolen Power Package
    104
  - Attention Required after Submersion
    104
  - Replacement Service Parts
    104
    
    Parts and Accessories Inquiries
    105
  - Resolving a Problem
    105
  - Mercury Marine Service Offices
    105
- Ordering Literature
  106
  - United States and Canada
    106
  - Outside the United States and Canada
    106

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MerCruiser 8.1 H.O. User Manual

MerCruiser 8.1 H.O. User Manual (96 pages)

Brand: MerCruiser | Category: Engine | Size: 3 MB

Table of Contents

Table of Contents

5
Section 2 - Getting to Know Your Power Package 2

21
- Identification
  22
  - Engine Serial Number Decal
    22
- Lanyard Stop Switch
  22
- Instrumentation
  23
  - Digital Gauges
    23
  - Analog Gauges
    24
- Remote Controls (Non-DTS Models)
  24
  - Remote Controls
    24
    
    Panel Mount Features
    25
    
    Console Mount Features
    26
    
    Zero Effort Features
    26
- Remote Controls (DTS Models)
  27
  - Remote Controls
    27
  - Panel Mount Features
    27
  - Console Mount Features - Single Engine
    28
  - Engine
    29
  - Slim Binnacle Console Mount Features - Single Engine
    29
  - Console Mount Features- Dual Engine
    30
  - Synchronizing Dual Engines
    30
  - Dual Helm Station Transfer
    31
    
    Transfer
    32
    
    Zero Effort Features
    32
- Electrical System Overload Protection
  32
  - Synchronizing Dual Helms Prior to Station Transfer
    32
- Audio Warning System
  34
  - Testing the Audio Warning System
    35
- Engine Guardian Strategy
  35
- Transmission Guardian Strategy
  35
- Warning Horn Signals
  36
Section 3 - on the Water

37
- Safe Boating Suggestions
  38
- Be Alert to Carbon Monoxide Poisoning
  39
  - Good Ventilation
    39
  - Poor Ventilation
    40
- Basic Boat Operation (Non-DTS Models)
  40
  - Launching and Boat Operation
    40
    
    Operation Chart
    40
    
    Starting and Stopping the Engine
    41
    
    Starting the Engine
    41
    
    Drain Plug and Bilge Pump
    42
    
    Freezing Temperature Operation
    42
    
    Stopping the Engine
    42
    
    Throttle-Only Operation
    42
- Basic Boat Operation (DTS Models)
  42
  - Launching and Boat Operation
    42
    
    Operation Chart
    42
    
    October
    43
    
    Starting and Stopping the Engine
    43
    
    Starting the Engine
    43
    
    Stopping the Engine
    44
    
    Throttle-Only Operation
    44
    
    Drain Plug and Bilge Pump
    45
    
    Freezing Temperature Operation
    45
- Protecting People in the Water
  45
  - While You Are Cruising
    45
  - While Boat Is Stationary
    45
- High-Speed and High-Performance Operation
  46
Section 4 - Specifications

51
- Cruising RPM
  52
- Fuel Requirements
  52
- Engine Oil
  53
- Engine Specifications
  54
- Fluid Specifications
  55
  - Transmission
    55
  - Engine
    55
Section 5 - Maintenance

57
- Dealer Responsibilities
  58
- Maintenance
  58
- Owner/Operator Responsibilities
  58
- Do-It-Yourself Maintenance Suggestions
  59
- Inspection
  59
- Maintenance Schedule-Inboard Models
  60
  - Routine Maintenance
    60
  - Scheduled Maintenance
    60
- Engine Oil
  61
  - Checking
    61
  - Filling
    62
  - Changing Oil and Filter
    63
    
    Engine Oil Drain Pump
    63
    
    Changing Filter
    64
- Maintenance Log
  61
- Transmission Fluid
  64
  - Checking While the Engine Is Warm
    64
  - Checking While Engine Is Cold
    65
  - Changing
    65
- Engine Coolant
  65
  - Checking
    65
  - Filling
    66
  - Changing
    66
- Changing the Water-Separating Fuel Filter
  66
- Cleaning the Flame Arrestor
  68
- Serpentine Drive Belt
  69
  - Checking
    69
  - Replacing
    69
- Flushing the Seawater System-Inboard Models
  71
  - The Boat out of the Water-Inboard Models
    71
  - The Boat in the Water-Inboard Models
    72
- Battery
  73
  - Multiple EFI Engine Battery Precautions
    73
Section 6 - Storage

75
- Cold Weather or Extended Storage
  76
  - Preparing Power Package for Storage
    76
    
    Engine and Fuel System Preparation
    77
- Draining the Seawater System
  78
  - Drain System Identification
    78
    
    Air Actuated Single Point Drain System
    78
    
    Manual Drain System
    79
  - Air Actuated Single Point Drain System
    79
    
    Boat in the Water
    79
    
    Boat out of the Water
    81
  - Manual Drain System
    83
    
    Boat in the Water
    83
    
    Boat out of the Water
    84
- Battery Storage
  85
- Power Package Recommissioning
  85
- October
  86
Section 7 - Troubleshooting

87

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