CHAPTER 4. BASIC ENGINE OVERHAUL - TM-5-4320-258-340034

TM 5-4320-258-34

CHAPTER 4

BASIC ENGINE OVERHAUL

SECTION I. INTRODUCTION AND FITS, TOLERANCES,

AND WEAR LIMITS

4-1.

Introduction

Paragraph 4-2 provides the fits, tolerances, and

allowable wear limits which are useful in determining if

This chapter provides instructions relating to engine

parts replacement is necessary.

repair and overhaul. It includes information regarding

disassembly, inspection of parts to determine if their

4-2. Fits, Tolerances, and Wear Limits

continued serviceability is possible or if they should be

replaced, instructions covering repair techniques such

Table 4-1 lists the fits and tolerances applicable to the

as valve grinding and cylinder honing, reassembly and

engine.

Refer to the table to determine if parts

tolerance checking to assure proper fits and clearances,

replacement is required or if containued serviceability of

and all other information relating to engine overhaul.

the parts is possible.

4-1