Mercury MerCruiser Marine Engines GM V-6 Cylinder Service Manual #7 This is a complete Service Manual for the Mercury Mercruiser Marine Engines GM V-6 Cylinder. a whopping 437 pages and 78.14 MG of very well detailed easy to read troubleshooting, rebuilding, servicing, maintenance and repair information complete with many charts, diagrams, schematics, specifications and pictures. This manual covers all aspects of servicing this equipment in a very clear and concise format with the convenience of having all this information at your fingertips in the form of a CD. This manual will allow you to completely troubleshoot, disassemble, inspect, repair and reassemble your equipment. Models Covered In This Manual MODEL & SERIAL NUMBER Model Years 1983-1993 MCM 185R - 229 CID (3.8L) - Serial No. 6289593 - 6919655 MCM 185MR - 262CID (4.3L) - Serial No. 6919656 - OA483580 MCM 185 Alpha I - Serial No. OA483581 - OB455459 MCM 175 Alpha I - Serial No. OB455460 - OB773242 MCM 4.3 Liter Alpha I - Serial No. OB773243 - OF000000 Sea Ray (Note 1) 4.3L - 2 Alpha l - Serial No. OB785483 - B921276 MCM 205MR - Serial No. 6919687 - OA483776 MCM 205 Alpha I - OA483777 - OB775129 MCM 4.3 Liter LX Alpha I - OB775130 - OF000000 Sea Ray (Note 1) 4.3L - 4 Alpha I - Serial No. OB 785981 - B922330 NOTE 1: Sea Ray to MerCruiser cross references are: 4.3L - 2 same as MCM 4.3 Liter 4.3L 4 same as MCM 4.3 Liter LX The Contents of The Manual Are As Follows Service Manual Outline Mercruiser Marine Engines GM V-6 Cylinder Manual #7 437 pages - 78.14 MB Service Manual Outline Section 1 - IMPORTANT INFORMATION a, General Information b. Maintenance & Servicing c. Troubleshooting Section 2- REMOVAL AND INSTALLATION a. MCM 185 (229 CID) b. MCM 175, 185, 235, 4.3L, 4.3LX (262 CID) Section 3 - ENGINE MECHANICAL a. 185 (229 CID) 3.8 Liter b. 185 - 205 (262 CID) 4,3 Liter Section 4 - ELECTRICAL a. Starting System b. Ignition System c. Charging System d. Instrumentation e. Wiring Diagrams Section 5 - FUEL SYSTEM a. Fuel Delivery b. Fuel Pump c.2 BBL Mercarb d. 4 BBL Rochester Carburetor e. 4 BBL Weber Carburetor Section 6 - COOLING SYSTEM a. Standard Cooling b. Closed Cooling c. Exhaust System Section 7 - POWER STEERING a. Power Steering