1978-1984 Mercury Mercruiser #3 Marine EngineS All 4 Cylinder GM 4 Cylinder GM 6 Cylinder GM V-8 Cylinder Workshop Service Repair Manual Download PDF

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. 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 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. File Format: PDF Compatible: All Versions of Windows & Mac Language: English Requirements: Adobe PDF Reader