This is a COMPLETE Service Repair Manual for the Mercury Mercruiser #3 MARINE ENGINES Mercury Marine 4 Cylinder GM 4 Cylinder, GM 6 Cylinder, GM V-8 Cylinder. Production model years 1978 1979 1980 1981 1982 1983 1984. This invaluable technical manual includes needed instructions to maintain and service your equipment using detailed diagrams and manufacturers specifications.

MODELS COVERED:
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MODEL - SERIAL NUMBER
- MCM 120 - S/N: 4952701 - 6255465
- MCM 120R - S/N: 6255466- 6853913
- MCM 140 - S/N: 4918570 - 6256954
- MCM 140R - S/N: 6256955 - 6852269
- MCM 165 - S/N: 4884835 and Above
- MCM 470 - S/N: 4886620 - 6218036
- MCM 470R - S/N: 6218037 - 6902287
- MCM 485 - S/N: 5685394 and Above
- MCM 488R - S/N: 6170297 - 6899057
- MCM 898 - S/N: 4887830- 6218461
- MCM 898R - S/N: 6218462 - 6899057
- MCM 228 - S/N: 4902305 - 6225266
- MCM 228R - S/N: 6225267 - 6899268
- MCM 260 - S/N: 4908850- 6227756
- MCM 260R - S/N: 6227757 - 6890705
- MCM 330 - S/N: 4889680 - 60831 44
- MCM 330 (8-W) - S/N: 6083145- 6920831
- MCM 370/ 400 - S/N: 4883520- 6721534
- MCM 400 Cyclone - S/N: 5669232 - 6844266
- MCM 440 Cyclone - S/N: 6181070 - OA429860
- MCM 460 Cyclone - S/N: 6180970-6181039
- MCM 475 Turbo - S/N: 5670797 and Below
- MCM 470TR - S/N: All (Note 1)
- MCM 230TR - S/N: 6901029 and Below (Note 1)
- MCM 260TR - S/N: 6885891 and Below (Note 1)
- MIE 470 - S/N: All
- MIE 228 - S/N: 4931100 - 5907057
- MIE 230 - S/N: 5907058 - 6901 029
- MIE 255 - S/N: 4924565 - 5907057
- MIE 260 - S/N: 5907058- 6885891
- MIE 330 - S/N: 4890180 - 5889913
- MIE 340 - S/N: 5889914- OA307952

NOTICE
Refer to appropriate "Stern Drive Service Manual" for Transom Assembly and Stern Drive Unit Repair.

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TABLE OF CONTENTS:
==========
1 - IMPORTANT INFORMATION / TROUBLESHOOTING
A - General Information
B - Maintenance
C - Troubleshooting

2 - REMOVAL-INSTALLATION-ALIGNMENT
A - MCM 120 / 140 / 165
B - MCM 120R / 140R Driveshaft Extension Models
C - MCM 470 / 485 / 488
D - MCM 898 / 228 / 260
E - MCM 898 / 228 / 260 Driveshaft Extension Models
F - MCM 330TR / TRS with Mercury Marine Transmission
G - MCM 330 (B-W) TR / TRS
H - MCM 370 / 400TRS and Hi-Performance Engines
I - MIE 470 / 228 / 230 / 255 / 260 / 330 / 340

3 - ELECTRICAL SYSTEM
A - Starting System
B - Ignition System
C - Charging System
D - Instrumentations
E - Electrical Kits
F - Wiring Diagrams

4 - FUEL SYSTEMS
A - Fuel Delivery System and Fuel Pumps
B - Rochester 2 Barrel
C - MerCarb 2 Barrel
D - Rochester 4 Barrel
E - Holley 4 Barrel

5 - EXHAUST SYSTEM
A - Exhaust Manifolds/ Elbows
B - Exhaust Risers
C - Exhaust Collectors

6 - ENGINE
A - GM In-Line
B - Mercury Marine 4 Cylinder Engine
C - GM V-8

7 - COOLING SYSTEM
A - Seawater Cooled Models
B - 470 / 485 / 488
C - Closed Cooled Models

8 - DRIVE SYSTEMS
A - Velvet Drive (Borg-Warner) Transmission
B - Mercury Marine Transmission
C - Driveshaft Models / Propeller Shaft

9 - POWER STEERING SYSTEM

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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 PDF Reader
ZOOM IN/OUT: YES
Downloadable: YES
Compatible: All Versions of Windows & Mac

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This manual provides detailed service information, step-by-step repair instruction and maintenance specifications for your Mercury Mercruiser #3 MARINE ENGINES Mercury Marine 4 Cylinder GM 4 Cylinder, GM 6 Cylinder, GM V-8 Cylinder.

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, this manuals give 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.

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