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 TM 55-1905-220-14-5
3-58. ELECTRIC POWER GENERATION AND DISTRIBUTION (Cont).
TABLE OF SPECIFICATIONS, NEW CLEARANCES AND WEAR LIMITS (Cont)
ENGINE PARTS
MINIMUM
MAXIMUM
LIMITS
(Standard Size, New)
(inches)
(cm)
(inches)
(cm)
(inches)
(cm)
*Runout tolerance given for guidance when regrinding crankshaft. When the runout on adjacent journals
is in the OPPOSITE direction, the sum must not exceed .003 inches, (.008 cm) total indicator reading. When
the runout on adjacent journals is in the SAME direction, the difference must not exceed .003 inch (.008 cm)
total indicator reading. When high spots of the runout on adjacent journals are at RIGHT ANGLES to each
other, the sum must not exceed .004 inches (.010 cm) total indicator reading or .002 inches (.005 cm) on each
journal.
CONNECTING ROD BEARINGS
Inside diameter
(vertical axis)................................
2.7514
6.9886
2.7534
6.9936
Bearing-to-journal
clearance ....................................
.0014
.0036
.0044
.0112
.0060
.0152
Bearing thickness 90
from parting line ..........................
.1548
.3932
.1553
.3945
.153 min .388 min
MAIN BEARINGS
Inside diameter
(vertical axis)................................
3.5014
8.8936
3.5034
8.8986
Bearing-to-journal
clearance .....................................
.0014
.0036
.0044
.0112
.0060
.0152
Bearing thickness 90
from parting line ..........................
.1548
.3932
.1553
.3945
.153 min .389 min
CAMSHAFT
Diameter (at bearing
journals):
Front and rear ........................
1.4970
3.8024
1.4975
3.8037
Center and
intermediate .......................
1.4980
3.8049
1.4985
3.8062
Runout at center bearing
(when mounted on
end bearings) .........................
.0020
.0051
Shaft diameter at gear ........................
1.1875
3.0162
1.1880
3.0175
Length-thrust bearing
end journal ...................................
2.8740
7.3000
2.8760
7.3050
End thrust ...........................................
.0040
.0102
.0120
.0305
.0180
.0457
Thrust washer
thickness ......................................
.1190
.3023
.1220
.3099
3-1026
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