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 TM 55-1905-223-24-5
NOTE
Always rotate the crankshaft slowly. Watch the piston travel indicator as you rotate the
crankshaft.
(x)
Continue to rotate-the crankshaft past TDC until the indicator shows 0.225 inch (two and one-
fourth revolutions of the indicator needle past TDC) (3, FIGURE 3-38.) This step is
necessary to take up the gear lash in the engine.
(y)
Rotate the crankshaft in the direction of engine rotation until the piston travel gauge is at
0.2032 inch BTDC (4, FIGURE 3-38.)
NOTE
The engine must be on the compression stroke. When the crankshaft is rotated to TDC on
the compression stroke, the indicators on both gauges will move in the same direction. If they
do not, rotate the crankshaft one complete revolution and repeat step (e).
(z)
Read the push rod travel gauge. The push rod travel must be within the limits given in Table
3-3.
Table 3-3. Injection Timing Codes and Push Rod Travel.
Push Rod Travel (2)
Timing (1)
(Inches)
Code
Fast (3)
Slow (3)
A
-0.0395
-0.0435
C
-0.0315
-0.0355
D
-0.034
-0.038
E
-0.028
-0.030
Z
-0.024
-0.028
AA
-0.030
-0.032
AC
-0.027
-0.029
AF
-0.044
-0.046
AH
-0.034
-0.036
AK
-0.040
-0.042
AN
-0.045
-0.047
AQ
-0.041
-0.043
AS
-0.035
-0.037
AU
-0.048
-0.050
AV
-0.049
-0.051
AW
-0.059
-0.061
AX
-0.054
-0.056
AY
-0.039
-0.041
AZ
-0.058
-0.060
3-57
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