TM 5-3805-281-24-2
Cylinder Head and Valves
INSPECT AND MEASURE VALVE SPRINGS
1. Inspect valve springs for alignment, wear, and damage.
2. Put springs on a flat surface to see that they are
square and parallel.
3. Check valve spring tension using D01168A Spring
Compression Tester.
Intake Valve Spring--Specification
Valve Spring
Tension ................................................... 810--880 N (182--198 lb-force)
with valve open
Height .......................................................... 38.1 mm (1.50 in.) with valve
open
Tension ....................................................... 345--399 N (78--90 lb-force)
with valve closed
Height .......................................................... 52.5 mm (2.07 in.) with valve
closed
Exhaust Valve Spring--Specification
Tension ................................................... 797--867 N (179--195 lb-force)
with valve open
Height .......................................................... 38.5 mm (1.52 in.) with valve
open
Tension ....................................................... 284--338 N (64--76 lb-force)
Checking Valve Spring Tension
with valve closed
Height .......................................................... 54.5 mm (2.15 in.) with valve
closed
NOTE: Free spring length of 65 mm (2.56 in.) springs
differ slightly, but compressed height must be the
same.
RG,RG34710,1080
1923OCT971/1
