TM 9--2815--247--34
0072 00--2
VALVES AND ASSOCIATED PARTS REPAIR -- CONTINUED
0072 00
Inspection -- Continued
NOTE
Do not interpret termination of chrome plating on stem as
cracked.
3. Measure outside diameters of exhaust (1) and intake (2) valve stems. Replace valves that do not meet the follow-
ing limits.
REF
NO.
POINT OF MEASUREMENT
SIZES AND FITS OF NEW PARTS
inches (mm)
WEAR LIMITS
1
Outside diameter of exhaust valve
stem
0.5570 (14.1478)
0.5580 (14.1732)
0.5565 (14.1351)
2
Outside diameter of intake valve
stem
0.4975 (12.6365)
0.4980 (12.6492)
0.4970 (12.6238)
Figure 9
1
2
4. Lightly blue face of insert (3 and 4) with Prussian blue and place valve (1 and 2) into position on valve seat insert.
5. Rotate valves (1 and 2) one--half turn on insert and check for Prussian blue contact. Valve must show contact all
around (360°), as indicated by Prussian blue transfer, to qualify as a serviceable valve.
Figure 9
INTAKE
EXHAUST
1
3
2
4
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