YANMAR 6LY Series Marine DIESEL Workshop Service Manual

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🏷️ 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...

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Type: Engine

Vendor:

Sku: 52159

Tags: 6LY Series Engine Inboard Engines LYA Series Marine Yanmar

Product variants

Description

🏷️ Basic Information

Identification

Make:

YANMAR

Series:

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