TM 5-3810-307-24-2-2
Valve Tappets Inspection (4-01)
Inspect the socket, stem and face for excessive wear,
cracks and other damage.
Visual Limits
(A) - Normal Contact
(B) and (C) - Irregular Contact: Do not reuse.
Pit marks on the tappet face are acceptable.
The following criteria define the size of the pits allowed.
1. A single pit can not be greater than 2 mm [0.079 in].
2. Interconnection of pits is not allowed.
3. Total pits when added together should not exceed 6
mm [0.236 inch] diameter or a total of 4 percent of
the tappet face.
4. No pitting is allowable on the edges of the wear
face of the tappet.
Measure the valve tappet stem.
Diameter
mm
in
15.936
MIN
[0.627]
15.977
MAX
[0.629]
Push Rods - Inspection (4-02)
Clean the push rods in hot soapy water.
