Mercruiser 7.4L, 8.2L V8 Marine Engine Service Manual



Covers: Mercruiser 7.4L, 8.2L V8 Gen. VI and L29 Marine Engines

  • See full model compatibility list at the bottom of this page

Pages: 1,027
Compatibility: Windows/Mac/Tablet
File size: 12mb
Notes: Bookmarked, searchable, printable. Instant digital download only.

This PDF service manual contains all the necessary instructions for any repair your Mercruiser 7.4L, 8.2L V8 marine engine may require from top to bottom. This is the same manual technicians use to diagnose and repair your Mercruiser 7.4L, 8.2L V8 marine engine. Whether it’s routine maintenance, such as tune-ups and fuel system service, or more extensive repairs involving engine and pumpĀ disassembly, this manual provides the most accurate information to perform the job.

Topics in the Mercruiser 7.4L, 8.2L V8 Marine Engine Service Manual:

Important Information
General Information
Fluids and Capacities

Removal and Installation
MCM Models – Bravo and Blackhawk Drives
MCM Models – Bravo and Blackhawk Drives with Driveshaft Extension
MIE Models – Velvet Drive Transmission
MIE Models – Hurth Transmission

454 cid (7.4L) / 502 cid (8.2L) Engine (Includes Overhaul)

Electrical System
Starting System
Ignition System
Charging System
Wiring Diagrams

Fuel System
Fuel Delivery System for Electronic Fuel Injection
Multi-Port Fuel Injection Descriptions and System Operation
Multi-Port Fuel Injection Disassembly and Reassembly
Fuel Injection System Troubleshooting
General System Diagnostics
Trouble Code Diagnostics – 454/502 Mag MPI & 8.2L MPI
Trouble Code Diagnostics – 7.4L MPI

Cooling System
Seawater Cooled Models
Closed Cooled (Fresh Water) Models

Exhaust System
Manifolds and Elbows

Velvet Drive In-Line Transmission
Velvet Drive 5000A Down Angle Transmission
Velvet Drive 5000V V-Drive Transmission
Hurth V-Drive Transmission
Walter V-Drive Transmission
Drive Shaft / Propeller Shaft Models

Power Steering

Full model compatibility list:

Gen. VI Engines

Sterndrive (MCM)
MCM 454 Mag MPI 0L010029 & Up
MCM 502 Mag MPI 0L017000 & Up

Inboard (MIE) Model
MIE 454 Mag MPI Horizon 0L002200 & Up
MIE 8.2L MPI 0L002450 & Up

L-29 Engines

Sterndrive MCM 7.4L MPI 0L010003 & Up
Inboard MIE 7.4L MPI 0L002006 & Up



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