TM 5-3805-280-24-2
Cylinder Head and Valves
INSPECT AND MEASURE VALVE SPRINGS
05
28
1. Inspect valve springs for alignment, wear, and damage.
2. Using D01168AA Spring Compression Tester, check
valve spring tension. Compressed height must be
within specification given below.
Spring Free Length 0 N (0 lb-force)1--Specification
Height ......................................................................... 54.0 mm (2.125 in.)
Spring Compressed 240--280 N (54--62 lb-force)--Specification
Height ........................................................................... 46.0 mm (1.81 in.)
Spring Compressed 590--680 N (133--153 lb-force)--Specification
Height ........................................................................... 34.5 mm (1.36 in.)
1
Free length may vary slightly between valve springs.
RG,05,DT7365 1911NOV971/1
INSPECT VALVE ROTATORS
Valve rotators cannot be repaired. Replace valve rotators
when valves are replaced or reground.
Insure that valve rotators turn freely in both directions.
Replace if defective.
RG,05,DT7364 1911NOV971/1
13-86
