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Foreword

This service manual is written to familiarize you with the maintenance of your S4S and S6S Diesel Engine. If

the engine is carefully maintained it will deliver a long productive life and efficient performance marked by

power and economy.

Before you attempt to inspect, disassemble, or repair the engine, read this manual carefully to leam more about

the engine and how to care for it properly. AHdescriptions, illustrations, specifications and serial numbers in

this manual are effective as of the date printing of this manual.

The information contained in this manual applies to the engine model produced at the time of publication.

It should be noted that specifications and design may change due to improvements made thereafter.

For

items other than those in this publication, refer to the operation

manual

for a unit on which the

engine is mounted,

How to Use This Manual

1. Parts in illustrations are numbered to correspond with references to these numbers in text.

2. Items or conditions to be inspected during disassembly are enclosed in a box in the disassembIed views:

I Clogged oil hole I

3. Maintenance standards for inspeetion and repair are described in text where they are relevant. For a quick

summary of maintenance standards refer to group 2 of this manual.

4. The sequence in which parts are to be reassembled is summarized below eaeh assembIed view.

Sueh as:

.....

5. Tightening torque under wet conditions is indieated as "(wet)" in text, drawings, and tables. When so indieated

as (wet), apply engine oil to the threaded portion of the fastener. Unless indieated as such, the tightening

torque is to be assumed in the dry condition.

6. Pay attention to the special notes, cautions and wamings.

Pub. No. 99616-10170

Mitsubishi S4S Service Manual

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