TM 5-3810-307-24-2-1
Feeler Gauge
Intake Clearance: 0.254 mm [0.010 IN]
Exhaust Clearance: 0.508 mm [0.020 IN]
Check/set valves with engine cold - below 60 C [140 F].
NOTE
The clearance is correct when some
resistance is "felt" when the feeler gauge is
slipped between the valve stem and the
rocker lever.
6-5 C-1