CYLINDER HEAD AND VALVE TRAIN 155
Table 15 Cylinder Head Specifications (cont.)
Oversize: 0.05 mm (0.002 in) 35.55± 0.03 mm
(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 interference 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 (0.040 in)
Valve recession
Exhaust: 1.40 mm (0.055 in)
Intake: 59.75 - 60°
Valve seat angles
Exhaust: 44.75 - 45°
Valve seat runout (max.) 0.05 mm (0.002 in)
Valve seat width
1.91 - 2.16 mm (0.075 - 0.085 in)
Special Torque
Table 16 Cylinder Head and Valve Train Special Torques
BCP sensor 20 - 30 N·m (15 - 22 lbf·ft)
Cylinder head mounting bolts torque and sequence
Fuel injector mounting bolt
41 N·m (30 lbf·ft)
High-pressure oil hose fitting 46 N·m (34 lbf·ft)
ICP sensor 20 - 30 N·m (15 - 22 lbf·ft)
Rocker arm bolts torque and sequence
(Installing Rocker Ar
ms, page148)
Valve adjustment locknut
27 N·m (20 lbf·ft)
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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