TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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TM 9-2815-220-34 Figu »e2-RO. Disco11nect i11g 01·co1111ecli11g cy/i11der/1ead oil drain tube -right recu'. J Bose clamp 2 Mose 3 Lower front drain tube • 4 Locki ng wire 5 Bolt 6 linder head oil drain tube 7 Manifold heater tube 8 Washer Fiuure -l. Removi11g ori11stalli11g cyli11derhad oil drain tube (ISSe11tly. (9) Remove six self-locking nuts and fl at washers (fig. 2-83) and remove intake manifold elbow and heater tube a s a unit. Remove and dis- card gasket. Remove eight nuts and remove cylin- der 3L and 4L intake manifold t u bes. Remove and • discard washers. Remove the remainjJ1g twelve self-locking nuts securing cyU11ders IL, 2L, SL and 6L tubes to tJ1e intake manifold and remove tubes. Remove preformed packing, flat washers, spring washers and manifold flanges from tubes. scard preformed packings. 2-70.2 Change 3 I Hose clnmp 5 Connector tube 2 Hose 6 Nut and lockwasher I 3 Intake manifold tube 7 Intake 1110nifold 4 Turbosupercl1arger 8 Gasket .outlet elbow Figure ·8. Removi11g 0 i11stalli11g i11lake manifold assembly. b. Installation. (1) Install manifold flanges, spring washers, flat washers and new preformed packings on man- ifold tubes lL, 2L, 5L, and 6L. In stall tubes in intake manifold and secure with twelve self- locking nuts (fig. 2-83). Install new gaskets and install intake manifold tubes r cylinders 3L and 4L. Secure each tube with four self-locking nuts. (2) Install a new intake manifold elbow gasRet, and install intake manifold elbow and heater tube and secure with six self-locking nuts and flat washers. (3) In stall six new cylinder flange gaskets (8, fig. 2-82), and install intake manifold assen 1bl y (7) on cylinder studs. Secure intake manifold tubes to cylinders with eighteen plain nuts and lockwashers (6). ( 4) Install four hose clamps (1 ) loosely on two hoses (2). Install both hose assemblies on connector tube (S). Butt the hoses together at the alinement mark on the connector tube (fig. 2-82.1). (4.1) Install assembled tube and hoses on fotake manifold tube (3, fig. 2-82). UistaJI turbo- su percharger outlet elbow ( 4) h1 tube. Position hoses evenly between aUnement marks on the outlet elbow (4) and the iJ1take manifold (3). Position hose clamps (1) 1/8 inch from the ends of the hoses and torque tighten (d1·y) to 30 - 40 pound-inches. (5) Install new solid copper washers (8, fig. I 2-81) on six body bolts (5) and insert bolts through oil drain tube assembly (6) and install new I copper washer (8) on each bolt. Secure drain tube assembly (6) with six bolts and install lockfog wire (4). (6) Position hose (2) between cylinder head oil drain tube and lower front drain tube (3) and tighten two hose clamps (1). Position hose (fig. 2-80) between cylinder head oil drain tu be and lower rear tube and tighten two hose clamps. Connect