TM 9--2815--247--34 0069 00--4 PISTONS, RINGS, AND ASSOCIATED PARTS REPAIR -- CONTINUED 0069 00 Inspection CAUTION It is important that all pistons be the same size (oversize) and weight. Failure to comply will result in premature fail- ure. 1.  Inspect the top of the piston (10) for oversize and weight code identification stamps. 2.  If the weight code is missing or not legible, weigh the piston (10) and metal stamp the weight identification code at the location shown, using 0.19--inch (4.83 mm) high characters. Figure 8 10 ULTRASONIC INSPECTION STAMP (U) PISTON WEIGHT CODE IDENTIFICATION STAMP OVERSIZE IDENTIFICATION STAMP (.010, .020, .030, OR .040 IF OVERSIZE, OTHERWISE BLANK) STAMP CODE PISTON WEIGHT lbs (grams) STAMP CODE PISTON WEIGHT lbs (grams) STAMP CODE PISTON WEIGHT lbs (grams) 3 7.49 (3397.3442) 7.50 (3401.8800) 7.51 (3406.4158) C 7.64 (3465.3818) 7.65 (3469.9176) 7.66 (3474.4534) H 7.79 (3533.4194) 7.80 (3537.9552) 7.81 (3542.4910) 2 7.52 (3410.9517) 7.53 (3415.4875) 7.54 (3420.0234) D 7.67 (3478.9893) 7.68 (3483.5251) 7.69 (3488.0610) J 7.82 (3547.0269) 7.83 (3551.5627) 7.84 (3556.0986) 1 7.55 (3424.5592) 7.56 (3429.0950) 7.57 (3433.6308) E 7.70 (3492.5968) 7.71 (3497.1326) 7.72 (3501.6685) K A 7.58 (3438.1667) 7.59 (3442.7026) 7.60 (3447.2384) F 7.73 (3506.2043) 7.74 (3510.7402) 7.75 (3515.2760) L B 7.61 (3451.7742) 7.62 (3456.3101) 7.63 (3460.8459) G 7.76 (3519.8118) 7.77 (3524.3477) 7.78 (3528.8835) M