TM 9-6115-604-34
NAVFAC P-8-633-34
Table 1-4. Repair and Replacement Standards (Continued)
DIMENSIONAL DATA INCH (mm)
DESCRIPTION
FIG. NO.
REF.
MIN
MAX
WEAR LIMIT
NO.
ENGINE (CONT)
CYLINDER HEAD AND
VALVES (CONT)
Crosshead guide installed
Figure 9-8
A
2.350
2.370
height
(59.69)
(60.20)
Cylinder head thickness
Figure 9-1
7
4.745
34.755
4.715
(120.52)
(120.78)
(119.76)
Injector seal seat thickness
Figure 9-1
18
0.0135
0.0165
(0.343)
(0.419)
Injector tip protrusion
Figure 9-6
---
0.090
0.110
(2.29)
(2.79)
Valve stem diameter
Figure 9-3
B
0.4945
0.4955
0.4935
(12.560)
(12.586)
(12.535)
Valve rim thickness
Figure 9-3
A
0.105
(12.67)
Valve and seat angle
Figure 9-9
---
30 degrees
30 degrees
Valve guide installed height
Figure 9-8
D
1.375
1.390
(34.93)
(35.31)
Valve guide inside diameter
Figure 9-8
C
0.4972
0.4980
0.4996
(12.629)
(12.649)
(12.690)
Valve guide outside diameter
Figure 9-1
25
0.8456
0.8461
(21.378)
(21.491)
Valve guide bore in cylinder
Figure 9-1
7
0.8435
0.8445
head, inside diameter
(21.415)
(21.450)
Valve seat insert counter-
Figure 9-1
7
bore depth in cylinder
head
intake
0.512
0.517
(13.00)
(13.13)
exhaust
0.492
0.497
(12.50)
(12.62)
Valve seat insert bore in
Figure 9-1
7
2.377
2.378
cylinder head, inside
(60.38)
(60.40)
diameter
Valve seat insert, standard
Figure 9-1
26
2.3805
2.3815
outside diameter
(60.465)
(60.490)
Valve seat runout TIR
Figure 9-1
26
0.002
(0.05)
Valve spring free length
Figure 9-1
3
3.349
(85.06)
1-15
