TM 9--2815--247--34
0069 00--5
PISTONS, RINGS, AND ASSOCIATED PARTS REPAIR -- CONTINUED
0069 00
Inspection -- Continued
NOTE
If Zyglo penetrant kit is available, use of the Zyglo method
is preferable. Small cracks will show under the light as
irregular or dark streaks.
3. Inspect piston (10) for cracks, flaws or distortion, using a magnifying glass and a strong light.
4. Inspect piston (10) for damage or broken ring lands (15), nicks, or burrs.
5. Inspect piston pin bores (16) for wear, cracks, or abrasions.
6. Measure the inside diameter of piston pin bore (16). Replace pistons that do not meet the following limits.
REF
NO.
POINT OF MEASUREMENT
SIZES AND FITS OF NEW PARTS
inches (mm)
WEAR LIMITS
16
Inside diameter of piston pin bore
in piston
2.1268 (54.0207)
2.1270 (54.0258)
2.1280 (54.0512)
Figure 8
10
16
15
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