1
4
2
1
6
5
TM 9-4940-568-34
7-22
7-4. CYLINDER HEAD REPAIR (CONT).
c.
Valve Springs Inspection.
(1)
Measure valve springs. The approximate
limit for free length is 2.190 in. (55.63 mm).
The maximum inclination is 0.039 in. (0.99
mm).
(2)
Inspect valve spring tension. A minimum
load of 65.0 to 72.2 lb (289 to 321 N.m) is
required to compress spring to a height of
1.94 in. (49.3 mm).
d.
Assembly.
(1)
Install valve seal (6).
NOTE
Make sure marks made on valves
match up with marks on cylinder
head during disassembly.
(2)
Lubricate valve (1) with lubricating oil and
install valve, valve spring (2) and retainer
(4) on cylinder head (5).
