REPAIR AND REPLACEMENT STANDARDS

TM 9-2320-269-34-1

REPAIR AND REPLACEMENT STANDARDS

The following tabulated data lists the manufacturer's dimensions and tolerances for new and newly installed diesel engine

components and the maximum amount of wear a used component may show and still be usable. Use this information

while performing engine maintenance to insure that all parts are within allowable limits.

EXPLANATION OF COLUMNS

COMPONENT POINTS

This column shows the part of the component to be

OF MEASUREMENT

measured.

MANUFACTURER'S DIMENSIONS

This column shows the minimum and maximum tolerances

AND TOLERANCES IN INCHES

for new and newly installed components in inches, with

(MILLIMETERS)

millimeters shown in parentheses.

MAXIMUM ALLOWABLE WEAR AND

This column shows the maximum amount of wear a used

CLEARANCE IN INCHES

component may show and still be usable in inches, with

(MILLIMETERS)

millimeters shown in parentheses.

COMPONENT

MANUFACTURER'S DIMENSIONS

MAXIMUM ALLOWABLE

POINTS OF

AND TOLERANCES IN INCHES

WEAR AND CLEARANCE

MEASUREMENT

(MILLIMETERS)

IN INCHES (MILLIMETERS)

MINIMUM

MAXIMUM

CAMSHAFT

Bearing journal

diameter:

Front

2.346 (59.58)

2.347 (59.61)

(Data Unknown)

Second

2.315 (58.80)

2.316 (58.83)

Third

2.289 (58.14)

2.290 (58.17)

Fourth

2.246 (57.05)

2.247 (57.07)

Bearing clearance

0.0015 (0.038)

0.0035 (0.089)

End play

0.0035 (0.089)

0.0115 (0.292)

Timing gear

backlash

0.0005 (0.013)

0.0045 (0.114)

CRANKSHAFT

Main journal

diameter

3.1235 (79.34)

3.1245 (79.36)

Main bearing

clearance

0.0013 (0.033)

0.0043 (0.109)

End play

0.004 (0.102)

0.010 (0.254)

Rod journal

diameter

2.753 (69.93)

2.754 (69.95)

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