TM 10-4320-344-24
Figure 4-2.
Cylinder Head
c .
Inspect valves (6 and 7)
4-4 and 4-5.
For intake valves on Model
values given in Table 4-4.
Assembly Disassembly, Models 609-C and US636HCCD-1.
for cracks, pits, and the dimensions listed in Tables
609-C which have a 30° seat angle, measure for
Table 4-4.
Intake Valve Fits and Tolerances, Models 609-C and US636HCCD-1.
Dimension
Minimum
Maximum
Stem Diameter
0.3127 inches (7.945 mm)
0.3134 inches (7.960 mm)
Head Diameter
1.6889 inches (42.9 mm)
1.6969 inches (43.1 mm)
Valve Seat Width
0.059 inches (1.50 mm)
0.079 inches (2.00 mm)
{0.079 inches (2.00 mm)}
{0.098 inches (2.5 mm)}
4-9
