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 EXHAUST MANIFOLDS AND ASSOCIATED PARTS OVERHAUL—Continued 0028 00 Table 3. Overhaul Inspection Procedure for Left and Right Bank Cylinders No. 4, 5, and 6 Exhaust Pipe (Models AVDS-1790-2CA and AVDS-1790-2DA) (OIP 11683994) Right (Item 7, Figure 1) and (OIP 11683992) Left (Item 12, Figure 2). QA NO. REF. CHARACTERISTIC INSP. REQUISITE REQ. LTR. METHOD 1 Cracks Visual None allowed 2 Scratches, nicks, Visual None allowed gouges, or raised metal on contact surfaces 3 Pressure test for leaks Underwater leak test No leaks permissible using 25-35 psi internal air pressure. Plug all openings. NOTE Clamp or secure bellows before submerging underwater to prevent expansion. 4 Fractured or broken Visual None allowed welds 5 Broken or warped Visual None allowed flanges 6 Bent or deformed Visual None allowed elbows and tubes 0028 00-9 Change 1