🏷️ Basic Information Identification Make: Mercury Mercruiser Model: Mercruiser Marine Engines Number 13 Year: 1990-1997 Generation: GM 4 Cylinder 📋 Manual Details Documentation Manual Type: Service Repair Workshop Manual Language: English Format: PDF Compatibility: All Windows & Mac Requirements: Adobe PDF Reader, WinZip Printability: Printable ⚙️ Engine Specifications Engine Type Engine Type: GM In-Line 4 Cylinder Displacement Displacement: 181 C.I.D. Displacement Liters: 3.0L Fuel System Fuel System Type: MerCarb 2-Barrel Carburetor Cooling System Cooling System Options: Seawater Cooled, Closed Cooled Ignition System Ignition System Type: Standard Ignition System Charging System Charging System Type: Standard Charging System Starting System Starting System Type: Standard Starting System Power Steering Power Steering Availability: Available Exhaust System Exhaust Components: Exhaust Manifolds / Elbows Power Power Output: Not Specified 🔧 Transmission Transmission Type Transmission Type: Marine Drive System (Specific type not detailed in manual sections) Gears Number Of Gears: Not Specified 📐 Dimensions Engine Dimensions Engine Dimensions: Not Specified Engine Weight Engine Weight: Not Specified 🔧 Maintenance General Maintenance Maintenance Sections: General Information, Maintenance Troubleshooting Troubleshooting Sections: Troubleshooting Service Procedures Service Procedure Coverage: Complete disassembly and repair procedures Technical Illustrations Illustrations Count: Hundreds Service Interval Service Interval: Not Specified Oil Capacity Oil Capacity: Not Specified 📄 Coverage Details Model Specifics Covered Models: MCM 3.0L (SN: 0C856451 and Above), MCM 3.0L/3.0LX (SN: 0C868143 and Above) Engine Family Engine Family: GM 4 Cylinder