YANMAR 3JH2L 3JH2L-T 4JH2L-T 4JH2L-HT Marine DIESEL Engine Service Repair Manual Download PDF

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🏷️ Basic Information Identification Make: YANMAR Model: 3JH2L, 3JH2L-T, 4JH2L-T, 4JH2L-HT Generation: Early 1990s to early 2000s (estimated based on common availability) 📋 Manual Details Information Manual Type: Service Repair...

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类型: Engine

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标签: 3JH2L 3JH2L-T 4JH2L-HT 4JH2L-T Engine Engines Misc Yanmar

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Description

🏷️ Basic Information

Identification

Make:

YANMAR

Model:

3JH2L, 3JH2L-T, 4JH2L-T, 4JH2L-HT

Generation:

Early 1990s to early 2000s (estimated based on common availability)

📋 Manual Details

Information

Manual Type:

Service Repair Manual

Language:

English

Format:

Downloadable PDF

⚙️ Engine Specifications

General

Engine Type:

Marine Diesel Engine

Aspiration:

Naturally Aspirated (3JH2L, 4JH2L-HT) and Turbocharged (3JH2L-T, 4JH2L-T)

Displacement

Displacement:

3JH2L: 1.4 liters (1352 cc); 4JH2L-T: 1.9 liters (1904 cc)

Power

Bore X Stroke:

3JH2L: 84 x 84 mm; 4JH2L-T: 84 x 87 mm

Compression Ratio:

Approx. 21.5:1 (typical for these models)

Power Output:

3JH2L: Approx. 30-36 HP; 3JH2L-T: Approx. 38-45 HP; 4JH2L-T: Approx. 50-57 HP; 4JH2L-HT: Approx. 62-68 HP (specific ratings vary by model and application)

Torque:

Variable depending on model and specific rating.

🔧 Transmission

Drive

Type:

Marine Gearbox (specific models vary, e.g., KM3P-1, KM4A-1)

Gear Ratio:

Variable depending on gearbox option (e.g., 2.0:1, 2.3:1, 2.6:1)

📐 Dimensions

Physical

Length:

Approx. 600-700 mm (engine block only, varies with gearbox)

Width:

Approx. 400-500 mm (engine block only, varies with gearbox)

Height:

Approx. 500-600 mm (engine block only, varies with gearbox)

Weight:

Approx. 150-200 kg (dry weight, without gearbox and ancillaries)

🔧 Maintenance

Lubrication

Oil Type:

API CD or CE class diesel engine oil, SAE 15W-40 or 10W-30 (refer to manual for specific recommendations)

Oil Capacity:

Approx. 4.5 - 6.5 liters (including oil filter, varies by model)

Cooling

Cooling System:

Raw Water Cooled or Freshwater Cooling with Heat Exchanger

Intervals

Oil Change Interval:

Every 200 operating hours or annually, whichever comes first (typical)

Fuel Filter Replacement:

As needed or per manual recommendations, typically every few hundred hours.

📄 Electrical

Starting

Starting System:

Electric Starter Motor (12V or 24V system)

Charging

Alternator:

Typically 12V or 24V, 35-70 Amp (model dependent)