Mitsubishi 4G61, 4G63, 4G64 manual: 1992 edition

1992 Mitsubishi 4G6 Engine Technical Scope

• Covers 1992 Mitsubishi 4G61, 4G63, and 4G64 engine variants including SOHC and DOHC configurations with turbo and naturally aspirated options
• Official manufacturer publication with TSB revision 1992, engine code series 4G6
• Contains 47 torque specification tables, 35 exploded-view component diagrams, and 14 technical service specification charts
• Files are stored against your account so you can retrieve them after a hard-drive loss
• Indexed PDF search covers every chapter and appendix
• This 1992 edition is the primary factory reference for the 4G6 series engine overhaul, providing the official clearance and tolerance limits used in assembly procedures.

Engine Systems and Assemblies

This factory manual provides detailed technical data for the 4G61, 4G63, and 4G64 series. The document covers disassembly, inspection, and installation for major engine components including the cylinder head, camshafts, rocker arms, and valve assemblies. It also documents the fuel and emission control systems, throttle body configurations, and the lubrication system, including oil pump and oil cooler service. The timing belt section details procedures for both SOHC and DOHC setups, including instructions for balancing shaft timing.

Specification and Technical Data Preview

Engine overhaul data includes critical clearances for pistons, connecting rods, and crankshaft assemblies. Cylinder head flatness is limited to 0.2 mm with a standard of 0.05 mm. Standard intake valve clearance for SOHC engines is 0.02–0.06 mm. The 4G63 DOHC turbo injector resistance is specified at 2–3 ohms at 20°C. Standard cylinder bore for 4G63 engines is 85.00–85.03 mm. The factory workshop documentation includes explicit torque values for all engine bolts, such as the 110 Nm specification for 4G6 DOHC cylinder head bolts.

Note: This page is a contents overview for the manual. It does not provide repair or diagnostic instructions. An official 100-page Mitsubishi OEM engine manual covering the 1992 4G61, 4G63, and 4G64 engine line, documenting assembly, torque, and maintenance specifications for the 4G6-series build.