CHAPTER 7. VALVE MECHANISM MAINTENANCE

TM 9-2815-224-34&P

VALVE MECHANISM MAINTENANCE

Para

Page

Contents

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-1

7-2

Valve Bridge Guide Removal/Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-3

Valve Guide Removal/Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-4

7-5

Exhaust Valve Removal/Repair/Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-8

745

Rocker Arm Removal/Repair/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-6

7-11

Cam Follower/Push Rod Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-15

7-7

Cam Follower Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-16

7-8

Exhaust Valve Bridge Removal/Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-20

7-9

Camshaft Removal/Repair/Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-34

7-10

Camshaft End Bearing Bushing Removal/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-36

7-11

Idler Gear Removal/Repair/Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7-43

7-12

Front Balance Cover and Vibration Damper Removal/Installation . . . . . . . . . . . . . . . . . . . . .

INTRODUCTION

Section I.

7-1. GENERAL. This chapter covers removal, installation, and repair of the valve mechanism. The

subassemblies and parts which must be removed before these components can be removed will be

referenced to other paragraphs of this manual, TM 9-2320-279-10, TM 9-2320-279-20, or TM 9-2320-279-34.

VALVE MECHANISMS

Section II.

Valve Mechanism Maintenance Instructions

7-2. VALVE BRIDGE GUIDE REMOVAL/INSTALLATION.

This task covers:

a. Removal

c. Follow-on Maintenance

b. Installation

INITIAL SETUP

E q u i p m e n t Condition

Models

All

TM or Para

Condition Description

T e s t Equipment

Para 11-2

Engine brake retarder

removed.

None

Rocker arms removed.

Para 7-5

Special Tools

Exhaust valve bridges

Para 7-8

Installer, valve bridge guide J7482

removed.

Fuel injectors removed.

Para 12-2

Supplies

Para 7-4

Exhaust valves removed.

None

Special Environmental Conditions

Personnel Requi red

None

MOS 63W Wheel vehicle repairer

General Safety Instructions

References

None

Level of Maintenance

General Support

7-1