TM9-2815-202-34
APPENDIX G
ENGINE REPAIR SPECIFICATIONS
Section I.
INTRODUCTION
G-1. SCOPE
This appendix lists the repair specifications for the 8V71T series engines.
G-2. EXPLANATION OF COLUMNS
a. Column 1 -- Point of Measurement. This column lists the area of the engine (e.g., Cylinder
Block), then lists the specific component (e.g., Main Bearing Bore), and finally describes the critical
dimension (e.g., Inside diameter).
b. Column 2 -- New Minimum. This column lists the minimum acceptable dimension of the new
part. All dimensions are in inches unless stated differently.
c. Column 3 -- New Maximum. This column lists the maximum acceptable dimension of the new
part. All dimensions are in inches unless stated differently.
d. Column 4 -- Wear Limit. This column lists the maximum acceptable deviation for the used
part. All dimensions are in inches unless stated differently. An asterisk (*) in this column indicates the
part must keep the same minimum and maximum limit as the new part.
Section Il.
ENGINE REPAIR SPECIFICATIONS
NEW
NEW
WEAR
POINT OF MEASUREMENT
MINIMUM
MAXIMUM
LIMIT
(inches)
(inches)
(inches)
CYLINDER BLOCK
Cylinder Sleeve Bore
Inside diameter of bore
4.6256
4.6275
4.6275
Oversize (0.010)
4.6360
4.6370
4.6375
Oversize (0.020)
4.6460
4.6470
4.6475
Oversize (0.030)
4.6560
4.6570
4.6575
Sleeve bore out-of-round
0.0010
0.0020
Taper of sleeve bore
0.0010
0.0020
Cylinder Sleeve Counterbore
Inside diameter of counterbore
5.0460
5.0510
*
Depth of counterbore
0.4770
0.4795
*
Main Bearing Bore
Inside diameter of bearing bore
4.8120
4.8130
*
Camshaft Bearing Bore
Inside diameter of bearing bore
2.1875
2.1889
*
G-1
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