MR479Q MR479QA MR481QA JL481Q Engine Service Manual

This workshop repair shop manual provides comprehensive information for servicing the MR479Q, MR479QA, MR481QA, and JL481Q engines. It is a valuable resource for both professional mechanics and DIY enthusiasts.

• Chapter 1: Engine Overview
  • Section 1: Basic Structure and Working Principle of Engine
  • Section 2: Structural Characteristic of Engine
  • Section 3: Engine Technical Performance and Parameters
  • Section 4: Engine Servicing Datasheet
  • Section 5: Maintenance of Engine
• Chapter 2: Cylinder Block Assembly
  • Section 1: Structural Characteristic of Cylinder Block
  • Section 2: Detach, Assembly and Servicing of Cylinder Block
• Chapter 3: Cylinder Head Assembly
  • Section 1: Structural Characteristic of Cylinder Head
  • Section 2: Detach, Assembly and Repair of Cylinder Head
• Chapter 4: Piston & Connecting Rod Mechanism
  • Section 1: Construction of Piston & Connecting Rod Mechanism
  • Section 2: Dismantling and Inspection of the Connecting-rod and its Bearing
  • Section 3: Common Faults and Troubleshooting of the Piston Connecting-rod Mechanism
• Chapter 5: Crank Mechanism
  • Section 1: Structural Characteristics of Crank Mechanism
  • Section 2: Disassembly & Maintenance of Crank Mechanism
  • Section 3: Common Faults and Troubleshooting of Crank Mechanism
• Chapter 6: Valve Train
  • Section 1: Make-up of Valve Train & its Design Features
  • Section 2: Valve Timing
  • Section 3: Make-up of Valve train Assembly and its Features
  • Section 4: Service of Valve Train
  • Section 5: Common Faults and Troubleshooting of Valve train
• Chapter 7: Fuel Supply System
  • Section 1: Makeup and Features of Fuel Supply System for Electronic Fuel Injection Engine
  • Section 2: Matters Needing Attention in Use and Maintenance of Electronic Fuel Injection System
  • Section 3: Troubleshooting the Electronic Fuel Injection System
  • Section 4: Evaporative Emission & Positive Crankcase Ventilation Control System
• Chapter 8: Ignition System
  • Section 1: Introduction to Ignition System
  • Section 2: Troubleshooting of Ignition System
• Chapter 9: Lubrication System
  • Section 1: Makeup and Features of Lubrication System
  • Section 2: Examination & Maintenance of Lubrication System
  • Section 3: Common Faults and Troubleshooting of Lubrication System
• Chapter 10: Cooling System
  • Section 1: Composition & Features of Cooling System
  • Section 2: Inspection and Maintenance of Cooling System
  • Section 3: Common Faults and Troubleshooting of Cooling System
• Chapter 11: Clutch
  • Section 1: Structure of Clutch and Its Operating Mechanism
  • Section 2: Clutch Troubleshooting
  • Section 3: Assembly and Adjustment of Clutch and its Operating Mechanism
  • Section 4: Common Faults and Troubleshooting of Clutch
• Chapter 12: Common Faults and Troubleshooting of Engine
  • Section 1: Overview
  • Section 2: Determination and Elimination of Common Faults in Engine
  • Section 3: Determination and Elimination of Abnormal Noises in the Engine
• Chapter 13: Power source
  • Section 1: Structure of Clutch and Its Operating Mechanism
  • Section 2: Battery
  • Section 3: Normal Malfunction of Charging System and Troubleshooting
• Chapter 14: Starter
  • Section 1: Structure of Starter
  • Section 2: Working Principle of Starter
  • Section 3: Attentions in Use of Starter
  • Section 4: Troubleshooting of Starter
• Chapter 15: Engine Management System
  • Section 1: System Profile
  • Section 2: System Composition and Working Principle
• Chapter 16: Engine Electronic Control System
  • Section 1: General Structure of Engine Electronic Control System
  • Section 2: Structural Principle of the Components of the Engine Electronic Control System

This manual is available in .PDF format and is an essential reference for understanding and maintaining these engines.