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 TM 55-1905-221-14-1
Table 1-1. Engine Repair and Replacement Standards (American Standard) (Continued).
Manufacturers'
Dimensions and
Desired
Component
Tolerances In Inches
Clearance
Maximum*
Allowable
Wear and
Minimum
Maximum
Minimum
Maximum
Clearances
Inches
Inches
Inches
Inches
In Inches
CYLINDER LINERS (Cont)
Depth of liner flange BELOW block.................
0.0465
0.0500
..........
..........
0.0500
Variation in height between adjacent liners.....
.
..........
0.0020
..........
..........
0.0020
CYLINDER HEAD
Flatness-transverse................................ .........
..........
..........
..........
..........
0.0040
Flatness-longitudinally................................ .....
..........
..........
..........
..........
0.0100
Distance between top deck and fire deck........
3.5560
3.5680
..........
..........
3.5360
WATER NOZZLES ................................ ............
1/32 Re-
.. Flush
cessed
CAM FOLLOWER BORES ................................
1.0620
1.0630
..........
..........
1.0650
EXHAUST VALVE SEAT INSERTS .
Seat width (300)................................ ..............
1/16 ...
3/32...
..........
..........
3/32
Valve seat runout................................ ............
..........
0.0020
..........
..........
0.0020
EXHAUST VALVES
Stem diameter ................................ ................
0.3417
0.3425
..........
..........
0.3405
Valve head to cylinder head (300)...................
0.0020
0.0280
..........
..........
..........
................................ ................................ ....
Protrusion
VALVE GUIDES
Height above cylinder head.............................
1-19/32
1-19/32
..........
..........
1-19/32
Diameter, inside................................ ..............
0.3445
0.3455
..........
..........
0.3465
Clearance, stem to guide ................................
..........
..........
0.0020
0.0038
0.0060
ROCKER ARMS AND SHAFTS
Rocker shaft diameter................................ .....
0.8735
0.8740
..........
..........
..........
Rocker arm shaft bushing inside diameter.......
0.8750
0.8760
..........
..........
..........
Clearance, shaft to bushing.............................
..........
..........
0.0010
0.0025
0.0040
1-13
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