TM 5-3825-226-24
CYLINDER HEAD AND VALVE COMPONENTS
VALVE SPRINGS
Check valve springs with the 8S2263 Valve Spring
Tester. Springs not meeting Specifications should be
replaced.
VALVE SPRING SPECIFICATIONS
Item
9N3617 Spring
9L9190 Spring
9L9172 Spring
1W4259 Spring
1.655 in.
1,715 in.
1.715 in.
1.334 in.
Length under test force
(42.04 mm)
(43.56 mm)
(43.56 mm)
(33.88 mm)
50 ± 5 lb.
35 ± 5 lb.
16.5± 4 lb.
174 ± 9 lbs.
Test force
(220 t 22 N)
(155 + 22 N)
(73.5 - 18 N)
(774 ± 39 N.m)
Use again minimum load at length
35 lb.
29 lb.
12 lb
162 lbs.
under test force
(155 N)
(130 N)
(53 N)
(720 Nm)
Length of spring at valve open
1.167 in.
1.215 in.
1.215 in
1.802 in.
position
(29.64 mm)
(30.86 mm)
(30.86 mm)
(45.77 mm)
Use again minimum load at valve
154.5 lb.
146 lb.
65 lb.
44 lbs.
open position
(687 N)
(650 N)
(290 NE
(194 N.m)
1.855 in.
1.85 in.
1.85 in.
1.996 in.
Free length alter test
(47.12 mm)
(47.1 mm)
(47.1 mm)
(50.7 mm)
1.440 in.
1.440 in.
998 in.
1.560 in.
Outside diameter
(36.58 mm)
(36.58 mm)
(25.35 mm)
(39.62 mm)
Spring must not be bent more
065 in.
065 in.
065 in.
065 in.
than
(1.65 mm)
(1.65 mm)
(1.65 mm)
(1.65 mm)
3-380
