Mitsubishi 4G63, 4G64 Gasoline Engine Service Manual

Comprehensive repair and maintenance guide for Mitsubishi 4G63 and 4G64 gasoline engines, featuring detailed diagrams, troubleshooting, and specifications for forklift trucks.

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Document Details

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Document Number / Seller:
30826 / Steven Peterson
File Size:
10.39 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Forklift
Last updated / verified
Aug 5, 2025

Models Covered & Key Technical Specifications

Mitsubishi Forklift Trucks (99729-74120) – 4G63, 4G64 Gasoline Engine

Repair and maintenance manual | Engine and Fuel System Repository.

  • Engine Model Identification: 4G63 and 4G64 gasoline engines are clearly outlined, providing serial number locations for accurate service.
  • Service Specifications Data: Detailed measurements for critical engine components, including bore, stroke, and valve clearances, are provided.
  • Tightening Torque Standards: Specific torque values (N.m, kgf.m, lbf.ft) are listed for major bolts and nuts across various engine sub-assemblies.
  • LP-Gas System Components: Illustrations and descriptions detail the LP-gas tank, filter, carburetor, and converter for proper understanding.
  • Troubleshooting Guidance: Comprehensive diagnostic trees and symptom-based solutions are offered for common operational issues.
  • Periodic Inspection Schedule: A structured maintenance plan outlines required checks every 200, 1200, 2400, and 4800 service hours.

Professional Workshop Service Manual & Technical Specifications

Mitsubishi 4G63 / 4G64 Gasoline Engine Forklift PDF Service Manual: Mitsubishi 4G63, 4G64 Forklift PDF Engine-Manual

Performance-Values: Mitsubishi Forklift Trucks // Equipment-Series: 4G63 / 4G64 Gasoline Engine / Forklift Logic // Performance-Values: Complete Workshop Manual.

Identifier System-Path Logic
Engine Identification Engine Models and Numbers Detailed listing and illustration for 4G63 and 4G64 engines.
Service Specifications General Specifications Comprehensive table of specifications including compression, valve timing, and oil capacity.
Tightening Torque Major Bolts and Nuts Torque values listed for key components like cylinder head, oil pan, and starter motor.
LP-Gas System Components Structure and Function Exploded views and descriptions of the LP-gas system components for forklifts.
Troubleshooting Engine, Carburetor and Electrical Components Troubleshooting Diagnostic guide for common issues like rough idle and starting problems.
Inspection Schedule Periodic Inspection Schedule Maintenance checklist for LP-gas tank, filter, carburetor, and engine systems.

Featuring a modular arrangement of sections covering everything from general information and engine specifications to detailed troubleshooting and maintenance schedules. Key areas include the LP-gas fuel system components, diagnostic procedures, and engine adjustment specifications.

Analytically requiring clarity, this manual includes detailed diagrams and procedures for the 4G63 and 4G64 gasoline engines. It covers the LP-gas system, troubleshooting common faults, and provides essential maintenance information for forklift applications. This rigorous document ensures proper operation and longevity of the engine.

The manual documents torque specifications for engine components to ensure proper clamp load consistency.

FAQ

Identify the **correct** LP-gas tank inspection procedures. keyboard_arrow_down
  1. Disassembly of components subject to high pressure, such as container, valve, and level indicator device, must be performed by legally qualified persons in certified shops.
What **documented** procedures are included for idle speed adjustment? keyboard_arrow_down
  1. Connect a tachometer and adjust the idle fuel mixture adjustment screw on the LP-gas carburetor until the engine idles stably between 650 to 700 RPM.
Determine the **precise** troubleshooting steps for an engine that starts but stalls immediately. keyboard_arrow_down
  1. Check for LPG regulator converter malfunction, mixer issues, LPG supply line leaks, or critically low LPG tank temperatures below -20° F, along with ignition system and fuel supply restrictions.

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Reviews (3)

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New
The download process was seamless, and I received a quick response when I had questions. Highly recommend this manual for anyone working with Mitsubishi forklifts!
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Rated 4 out of 5 stars
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New
The manual is incredibly detailed and covers all aspects of the Mitsubishi 4G63 and 4G64 engines. The troubleshooting section is especially helpful!