434 APPENDIX A – SPECIFICATIONS
Table 61 Valve Spring Specifications
Intake and Exhaust Valve Springs
Free length
52.35 mm (2.061 in)
Solid height (max.) 27.43 mm (1.080 in)
40 mm (1.575 in)Valve closed test length @ 410.1 ± 24.5 N (92.2 ± 5.5
lbf) test load
29.3 mm (1.155 in)Valve closed test length @ 764.2 ± 48.9 N (171.8 ±
11.0 lbf) test load
Table 62 Cylinder Head Specifications
Cylinder head gasket surface flatness 0.10 mm (0.004 in.) per 229 mm (9.0 in)
New: 160.48 mm (6.318 in)Cylinder head thickness
Minimum: 159.97 mm (6.298 in)
Standard: 37.503 ± 0.003 mm (1.477 ± 0.001 in)
Exhaust valve seat insert counterbore diameter
Oversize: 0.05 mm (0.00 2 in) 37.55 ± 0.03 mm
(1.478 ± 0.001 in)
Standard: 37.56 mm (1.479 in)
Exhaust valve seat outside diameter
Oversize: 0.05 mm (0.002 in) 37.61 mm (1.481 in)
Standard: 33.50 ± 0.03 mm (1.319 ± 0.001 in)
Intake valve seat insert counterbore dia
meter
Oversize: 0.05 mm (0.00 2 in) 35.55± 0.0
3mm
(1.321 ± 0.001 in)
Standard: 40.20 mm (1.583 in)
Intake valve seat outside diameter
Oversize: 0.05 mm (0.002 in) 40.25 mm (1.585 in)
Push rod runout (maximum) 0.508 mm (0.020 in)
Valve guide bore diameter
14.308 ± 0.017 mm (0.5633 ± 0.0007 in)
Valve guide bore out-of-round (max.) 0.005 mm (0.0002 in)
Valve guide bore taper (max.
)
0.013 mm (0.0005 in)
Valve guide height from cylinder head spring pocket
(intake)
16.53 ± 0.13 mm (0.651 ± 0.005 in)
Valve guide insert inside diameter (installed) 7.98 - 8.00 mm (0.314 - 0.315 in)
Valve guide insert inte
rference fit dimension
0.043 mm (0.0017 in)
Valve guide insert outside diameter
14.351 ± 0.010 mm (0.5650 ± 0.0004 in)
Valve guide length (overall) 65.71 mm (2.587 in)
Intake: 1.02 mm (0.04
0in)
Valve recession
Exhaust: 1.40 mm (0.055 in)
Intake: 59.75 - 60°
Valve seat angles
Exhaust: 44.75 - 4
5°
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
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