This is a comprehensive Service Repair Manual for the Mercury Mercruiser #3 MARINE ENGINES, covering the production model years 1978 to 1984. This invaluable technical manual includes detailed diagrams and manufacturers specifications, providing essential instructions for maintaining and servicing your equipment.
MODELS COVERED:
MCM 120 - S/N: 4952701 - 6255465
MCM 120R - S/N: 6255466- 6853913
MCM 140 - S/N: 4918570 - 6256954
... (full list of models covered)
NOTICE
Refer to appropriate "Stern Drive Service Manual" for Transom Assembly and Stern Drive Unit Repair.
TABLE OF CONTENTS:
IMPORTANT INFORMATION / TROUBLESHOOTING
General Information
Maintenance
Troubleshooting
REMOVAL-INSTALLATION-ALIGNMENT
MCM 120 / 140 / 165
... (detailed list of removal, installation, and alignment procedures)
ELECTRICAL SYSTEM
Starting System
Ignition System
... (detailed list of electrical system components)
FUEL SYSTEMS
Fuel Delivery System and Fuel Pumps
Rochester 2 Barrel
... (detailed list of fuel system components)
EXHAUST SYSTEM
Exhaust Manifolds/ Elbows
Exhaust Risers
... (detailed list of exhaust system components)
ENGINE
GM In-Line
Mercury Marine 4 Cylinder Engine
... (detailed list of engine components)
COOLING SYSTEM
Seawater Cooled Models
470 / 485 / 488
... (detailed list of cooling system components)
DRIVE SYSTEMS
Velvet Drive (Borg-Warner) Transmission
Mercury Marine Transmission
... (detailed list of drive system components)
POWER STEERING SYSTEM
Model Specification: Mercury Mercruiser #3 MARINE ENGINES Mercury Marine 4 Cylinder GM 4 Cylinder, GM 6 Cylinder, GM V-8 Cylinder Model Year: 1978-1984 Language: English Total Pages: 1092 File Format: PDF Requirements: Adobe Reader ZOOM IN/OUT: YES Printable: YES Compatible: All Versions of Windows & Mac
This manual provides detailed service information, step-by-step repair instruction, and maintenance specifications for your Mercury Mercruiser #3 MARINE ENGINES. It is designed as a "Service Guide" for MerCruiser models listed, providing specific information including procedures for disassembly, assembly, inspection, and adjustment. 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, this manual gives you everything you need to do the job with confidence.
Save Money by doing your own repairs! All pages are printable, so run off what you need & take it with you into the garage or workshop.
