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Mercury Mercruiser No. 30, 496 Mag , 496 Mag HO,  8.1S HO, 8.1S Horizon, Sterndrive Inboard, outboard engine service manual Preview image 1
Mercury Mercruiser No. 30, 496 Mag , 496 Mag HO,  8.1S HO, 8.1S Horizon, Sterndrive Inboard, outboard engine service manual Preview image 2
Mercury Mercruiser No. 30, 496 Mag , 496 Mag HO,  8.1S HO, 8.1S Horizon, Sterndrive Inboard, outboard engine service manual Preview image 3
Mercury Mercruiser No. 30, 496 Mag , 496 Mag HO,  8.1S HO, 8.1S Horizon, Sterndrive Inboard, outboard engine service manual Preview image 4
Mercury Mercruiser No. 30, 496 Mag , 496 Mag HO,  8.1S HO, 8.1S Horizon, Sterndrive Inboard, outboard engine service manual Preview image 5
Mercury Mercruiser No. 30, 496 Mag , 496 Mag HO,  8.1S HO, 8.1S Horizon, Sterndrive Inboard, outboard engine service manual Preview image 6

Mercury Mercruiser No. 30, 496 Mag , 496 Mag HO, 8.1S HO, 8.1S Horizon, Sterndrive Inboard, outboard engine service manual

Models covered in this manual:

496 Mag, 496 Mag HO, 8.1S HO, 8.1S Horizon, Sterndrive

Mercury (Brunswick Corporation)
Mercury Mercruiser #30, 496 Mag Sterndrive Inboard, Outboard Motor
Mercury Mercruiser #30, 496 Mag HO Sterndrive Inboard, Outboard Motor
Mercury Mercruiser #30, 8.1S HO Sterndrive Inboard, Outboard Motor
Mercury Mercruiser #30, 8.1S Horizon Sterndrive Inboard, Outboard Motor
Sterndrive (MCM)
496 Mag HO (Serial Number 0M000000 & Up)
496 Mag (Serial Number 0M000000 & Up)
Inboard (MIE) Models
8.1S HO (Serial Number 0M000000 & Up)
8.1S Horizon (Serial Number 0M000000 & Up)

Manual number 30

File specifications

File size: 6.13 MB
File type: PDF
Language: English
Pages: 355

Printable: Yes
Estimated download time: 0.13 Minutes
$13.99 Instant Download

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Product Information

Table of Contents

1. Important Information

  • General Information
  • Safety Warnings
  • Troubleshooting

2. Maintenance

  • Routine Maintenance
  • Winterization
  • Specifications

3. Engine Mechanical

  • Engine Overhaul
  • Cylinder Head Servicing
  • Engine Block Servicing

4. Electrical System

  • Ignition System
  • Charging System
  • Starting System
  • Wiring Diagrams

5. Fuel System

  • Fuel Delivery System for EFI
  • Fuel Pump and Fuel Injectors
  • Fuel Rail and Fuel Lines

6. Cooling System

  • Closed Cooling System
  • Thermostats
  • Water Pumps

7. Exhaust System

  • Manifolds
  • Elbows
  • Inspecting for Leaks

8. Drive Systems

  • Sterndrive Unit
  • Transmissions
  • Outdrives

9. Power Steering

  • Power Steering System Maintenance
  • Pump and Gear Assembly

10. Controls and Instruments

  • Control Systems
  • Instrumentation and Alarms

11. Appendices

  • Special Tools
  • Torque Specifications
  • Supplemental Information

12. Index

  • Alphabetical Index

This manual/handbook is useful to mechanics, technicians, and owners as it provides detailed information and instructions for servicing, repairing, and maintaining the Mercury Mercruiser #30, 496 Mag , 496 Mag HO, 8.1S HO, 8.1S Horizon, Sterndrive Inboard, outboard engine. It includes essential details about the engine, electrical systems, cooling and fuel systems, drive and steering systems, and troubleshooting guidance.

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