MECURY MERCRUISER GM V8 7.4L / 8.2L #23 SERVICE MANUAL

MECURY MERCRUISER GM V8 7.4L / 8.2L #23 SERVICE MANUAL

  • 980

MECURY MERCRUISER GM V8 7.4L / 8.2L #23 SERVICE MANUAL 

MARINE ENGINES 

GM V8 454 cid (7.4L) / 502 cid (8.2L) 

Models Covered in This Manual 
Gen. VI Engines 
Sterndrive (MCM) Model Serial Number 
MCM 454 Mag MPI 0L010029 & Up 
MCM 502 Mag MPI 0L017000 & Up 
Inboard (MIE) Model Serial Number 
MIE 454 Mag MPI Horizon 0L002200 & Up 
MIE 8.2L MPI 0L002450 & Up 
L-29 Engines 
Sterndrive (MCM) Model Serial Number 
MCM 7.4L MPI 0L010003 & Up 
Inboard (MIE) Model Serial Number 
MIE 7.4L MPI 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 
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