MerCruiser Service Manual #23 - GM V8 454 cid (7.4L) / 502 cid (8.2L)

This factory service manual provides detailed service information, step-by-step repair instruction, and maintenance specifications for your MerCruiser GM V8 454 cid (7,4L) / 502 cid (8,2L) Marine Engines.

This comprehensive overhaul and repair manual is designed as a "Service Guide" for MerCruiser models listed. It provides specific information including procedures for disassembly, assembly, inspection, and adjustment, to enable dealers and service mechanics to keep the MerCruiser in top operating condition. The procedures are supplemented with photos and illustrations.

All Official Mercury Marine Manuals for MerCruiser Sterndrives and Inboards include easy to follow, step-by-step illustrated procedures based on the complete dismantling, repair, and assembling of boat motors. From the simplest repair to complex procedures, these manuals give you everything you need to do the job with confidence.

Models Covered in This Manual

• Gen. VI Engines
• Sterndrive (MCM)
  • MCM 454 Mag MPI - S/N: 0L010029 & Up
  • MCM 502 Mag MPI - S/N: 0L017000 & Up
• Inboard (MIE)
  • MIE 454 Mag MPI Horizon - S/N: 0L002200 & Up
  • MIE 8.2L MPI - S/N: 0L002450 & Up
• L-29 Engines
• Sterndrive (MCM)
  • MCM 7.4L MPI - S/N: 0L010003 & Up
• Inboard (MIE)
  • MIE 7.4L MPI - S/N: 0L002006 & Up

Service Manual Outline

• Section 1 - Important Information
  • A - General Information
  • B - Maintenance
  • C - Troubleshooting
• Section 2 - Removal and Installation
  • A - MCM Models - Bravo and Blackhawk Drives
  • B - MCM Models - Bravo and Blackhawk Drives with Driveshaft Extension
  • C - MIE Models - Velvet Drive Transmission
  • D - MIE Models - Hurth Transmission
• Section 3 - Engine
  • A - 454 cid (7.4L) / 502 cid (8.2L)
• Section 4 - Electrical System
  • A - Starting System
  • B - Ignition System
  • C - Charging System
  • D - Instrumentation
  • E - Wiring Diagrams
• Section 5 - Fuel System
  • A - Fuel Delivery System for Electronic Fuel Injection
  • B - Multi-Port Fuel Injection Descriptions and System Operation
  • C - Multi-Port Fuel Injection Disassembly and Reassembly
  • D - Fuel Injection System Troubleshooting
  • E - General System Diagnostics
  • F - Trouble Code Diagnostics - 454/502 Mag MPI & 8.2L MPI
  • G - Trouble Code Diagnostics - 7.4L MPI
• Section 6 - Cooling System
  • A - Seawater Cooled Models
  • B - Closed Cooled (Fresh Water) Models
• Section 7 - Exhaust System
  • A - General
  • B - Manifolds and Elbows
  • C - Risers
  • D - Collectors
• Section 8 - Drives
  • A - Velvet Drive In-Line Transmission
  • B - Velvet Drive 5000A Down Angle Transmission
  • C - Velvet Drive 5000V V-Drive Transmission
  • D - Hurth V-Drive Transmission
  • E - Walter V-Drive Transmission
  • F - Drive Shaft / Propeller Shaft Models
• Section 9 - Power Steering
  • A - Pump

Language: English

File Format: PDF

Delivery method: .OVA file

This manual will come in .OVA format, so it's extremely easy to move around with you from computer to computer. Many mechanics purchase electronics manuals like this and use a laptop near them while doing maintenance! If you don't have a laptop, no problem! Just print out the pages of the manual that you need and you've got a hard copy in front of you while doing your work! Simply throw it away when you're finished! It's much easier and quicker than having to deal with a book!