1978-1984 Mercury Mercruiser #3 MARINE ENGINES 4 /GM4/GM6/GM V-8 Cylinder Service Manual

1978-1984 Mercury Mercruiser #3 MARINE ENGINES ALL 4 Cylinder GM 4 Cylinder, GM 6 Cylinder, GM V-8 Cylinder Workshop Service Repair Manual
Go ahead to take this service manual. Please contact to us if with any problems..
This manual can be used by anyone from a first time owner/amateur to a professional technician. Easy to read type, And give you all the information needed to do the procedure correctly. Keep this shop manual handy and use it often. Performing routine, preventive maintenance will save you time & money by helping to prevent premature failure and unnecessary repairs.

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MODELS COVERED:

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.


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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