🏷️ Basic Information Identification Make: YANMAR Model: 3JH2 Series Year: Not Specified Generation: 3JH2 Series 📋 Manual Details Documentation Manual Type: Service Repair Manual Language: English Format: PDF Download Completeness: Complete Official Content Covered Procedures: Service, Repair, Assembling, Disassembling, Wiring Diagrams ⚙️ Engine Specifications General Engine Type: Marine Diesel Engine Configuration: 3-cylinder Performance Displacement: 1.67 Liters (102 cubic inches) Bore: 88 mm (3.46 in) Stroke: 92 mm (3.62 in) Compression Ratio: 21.0:1 Cooling System: Direct or Indirect Cooling Fuel System: Indirect Injection (IDI) Starting System: Electric Start Ignition System: Compression Ignition 🔧 Transmission Drive Type: Marine Gearbox Reduction Gear Ratios: Multiple ratios available (e.g., 2.04:1, 2.38:1, 2.62:1) 🔧 Maintenance Lubrication Oil Capacity: Approximately 6.5 Liters (6.9 US Quarts) Scheduled Maintenance Oil Change Interval: Refer to manual (typically 100-200 hours or annually) Fuel Filter Replacement: Refer to manual Impeller Replacement: Refer to manual (typically annually or per operating hours)