🏷️ Basic Information Identification Make: YANMAR Series: 6LY Model Variants: 6LYM-UTE, 6LYM-STE, 6LY3-ETP, 6LY3-STP, 6LY3-UTP, 6LY2-STE, 6LY2A-STP, 6LYA-STP Intended Use: Marine Diesel 📋 Manual Details Manual Information Manual Type: Workshop Service Repair Manual Format: PDF Download Language: English Comprehensiveness: Most Comprehensive on Tradebit Target Audience Intended Users: Sales, Service, Inspection, and Maintenance Engineers ⚙️ Engine Specifications Engine Configuration Engine Type: In-line 6-cylinder Diesel Aspiration: Turbocharged & Intercooled (implied by model suffixes like ETP, STP, UTP) Displacement Bore: 110 mm Stroke: 126 mm Total Displacement: 7.07 L (7070 cc) Performance Variants Power Output Range: Likely ranges from 300 HP to over 400 HP depending on specific model variant (e.g., 6LY2A-STP typically around 370 HP, 6LY3-ETP around 400 HP) Cooling System: Heat Exchanger or Keel Cooling (typical for marine diesel) Fuel System Injection System: Common Rail Direct Injection (for newer variants like 6LY3 series) Engine Features Valvetrain: DOHC (Double Overhead Camshaft) Emissions Compliance: Varies by model and region, but likely meets EPA Tier 2/3 and EU RCD standards for certain variants 🔧 Transmission Drive System Type: Marine Gearbox (compatible with various marine transmissions and drives) Drive Options: Shaft Drive, Sterndrive (depending on vessel configuration) 🔧 Maintenance Fluid Capacities Engine Oil Capacity: Approx. 12-14 Liters (typical for this engine size, refer to specific model for exact) Coolant Capacity: Varies with vessel installation, but engine block capacity is approximately 8-10 Liters Service Intervals Oil Change Interval: Typically every 200-250 operating hours or annually (whichever comes first, refer to manual) Fuel Filter Replacement: Recommended at regular intervals as per manual, typically 250-500 hours Impeller Replacement: Annually or as needed based on operating conditions