NMWR-9-2815-220 Overhaul Manual for M60 M88 Engine AVDS-1790-2CA, AVDS-1790-2DA, AVDS-1790-2DR Download
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NMWR 9-2815-220 PISTON AND CONNECTING ROD ASSEMBLY OVERHAUL—Continued 0011 00 Table 5. Overhaul Inspection Procedure for Internal Combustion Piston (OIP 11683943) (Item 8, Figure 6). QA NO. REF. CHARACTERISTIC INSP. REQUISITE REQ. LTR. METHOD 1 Cracks Dye penetrant None allowed 2 Scratches, nicks, gouges, or Visual None allowed raised metal on contact surfaces 3 A *Diameter of top groove in piston (measured over 0.11547 in. (2.9329 mm) diameter pins) Standard part no. 11683943 Measure 5.7140 – 5.7240 in. (145.1356 – 145.3896 mm) 0.0100 in. (0.254 mm) Measure 5.7240 – 5.7340 in. oversize part no. 11683943-1 (145.3896 – 145.6436 mm) 0.0200 in. (0.508 mm) Measure 5.7340 – 5.7440 in. oversize part no. 11683943-2 (145.6436 – 145.8976 mm) 0.0300 in. (0.762 mm) Measure 5.7440 – 5.7540 in. oversize part no. 11683943-3 (145.8976 – 146.1516 mm) 0.0400 in. (1.016 mm) Measure 5.7540 – 5.7640 in. oversize part no. 11683943-4 (146.1516 – 146.4056 mm) A *Alternate method of measuring; Shoulders of piston ring groove gage must not touch shoulder of ring land. 0011 00-14 Change 1