TM 10-4320-344-24
Figure 4-3.
Chocking Cylinder Head Seating Surface, Models 609-C and US636HCCD-1.
i .
Valve Depth Measurement, Models 609-C and US636HCCD-1.
seat and measure distance from crown of valve to cylinder head
(Figure 4-4).
If distance exceeds specifications on either
h . I n s e r t v a l v e in
seating surface
valve, Tables 4-4 and 4-5, seat must be replaced.
Check clearance of valve stems in guides of both valves. If it exceeds values
specified in Tables 4-4 and 4-5, replace valve guides.
4-11
F i g u r e 4 - 4 .
