Isuzu N-Series. Service manual — part 314

00-68 SERVICE INFORMATION

5-8840-2222-0 / Sealing

cup installer

9-8523-1169-0 / Cylinder

liner remover

5-8840-2220-0

5-8840-2397-0 (4HG1) /

Cylinder liner remover

ankle

5-8840-2337-0 / Cylin-

der Liner Installer (4HE1-

TC only)

8-9439-6818-0 / Crank-

shaft gear remover

8-9439-6819-0 / Crank-

shaft gear installer

5-8840-2340-0 / Conrod

bush replacer

Illustration

Tool Number /

Description / Remarks

5884022220

9852311690

5884023970

5884022200

5884023370

8943968180

8943968190

5884023400

5-8840-2094-0 / Oil filter

wrench / 4WD model

Illustration

Tool Number /

Description / Remarks

5884020940

SERVICE INFORMATION 00-69

LUBRICATING SYSTEM

General Description

Lubricating Oil Flow

4HF1, 4HF1-2, 4HG1-T Model

4HE1-TC Model

The engine lubricating system is a full flow type.
Lubricating oil is pumped from the oil pump to the cylinder body oil gallery through the oil filter and the oil cooler. It is
then delivered to the vital parts of the engine from the cylinder body oil gallery.
Oil jets installed on the cylinder body spray engine oil to the piston inside faces to achieve maximum cooling effect.

N6A1619E

N6A1620E

00-70 SERVICE INFORMATION

ENGINE MECHANICAL 6A-1

ENGINE 4H SERIES

SECTION 6A

ENGINE MECHANICAL

Contents

CYLINDER HEAD . . . . . . . . . . . . . 6A-2

Component . . . . . . . . . . . . . . 6A-2
Disassembly . . . . . . . . . . . . . .. 6A-2
Clean . . . . . . . . . . . . . . . . . 6A-3
Inspection and Repair. . . . . . . . . . 6A-3
Reassembly. . . . . . . . . . . . . ... 6A-4

VALVE SPRING, VALVE GUIDE OIL SEAL, VALVE,
VALVE GUIDE . . . . . . . . . . . . . .. 6A-8

Component . . . . . . . . . . . . . . 6A-8
Disassembly . . . . . . . . . . . . . .. 6A-8
Inspection and Repair. . . . . . . . . . 6A-9
Reassembly. . . . . . . . . . . . . . 6A-14