🏷️ Basic Information Identification Make: Mercury MerCruiser Model: MerCruiser #30 Marine Engines Engine Code: 496CID / 8.1L Covered Models Sterndrive Models: • 496 Mag HO • 496 Mag Inboard Models: • 8.1S HO • 8.1S Horizon Serial Number Coverage Sterndrive Serial Numbers: 0M000000 & Up Inboard Serial Numbers: 0M000000 & Up 📋 Manual Details Manual Type Manual Type: Service Repair Manual Language Language: English Page Count Page Count: 355 Format Format: PDF Features Printable: True Searchable: True Bookmarked: True Delivery Delivery Method: Instant Download Illustrations Illustrations Included: True Diagrams Diagrams Included: True Schematics Wiring Schematics Included: True ⚙️ Engine Specifications Type Engine Type: Gasoline Displacement Displacement Cid: 496 Displacement Liter: 8.1 Cooling System Cooling System: Closed Cooled Models Fuel System Fuel System: Electronic Fuel Injection Components Power Steering Pump: True Exhaust Manifolds Elbows: True Exhaust Collectors: True Ignition System: True Charging System: True Starting System: True 🔧 Transmission Transmission Types Transmission Types: • Velvet Drive 5000 Series • Hurth 🔧 Maintenance Troubleshooting Troubleshooting Covered: True Rebuild Rebuild Procedures: True Diagnostics Diagnostic Procedures: True