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 Figu1·e3-33fl. Co1nct µositio11 ofcamslwjl lobes (cams)for fuel i+jectio11 pump i11stallutio11 -sectio1111/ +iew. clearance to 0.010 inch by tuing the adjusting screw clockwise to decrease the clearance or coun- terclockwise to increase the clearance. Check posi- tion of valve adjusting screw pad to make sure seat is flat on valve stem and torque tighten adjusting lock nut to 175 pound-inches. l. Using thickness gage blade part number 10882616 as shown in figure 3-327, set exhaust valve clearance to 0.025 in. by tuing the adjust- ing screw clockwise to decrease the clearance or counterclockwise to increase the clearance. Check position of valve adjusting screw pad to make sure seat is flat on valve stem and torque tighten ad- justing screw lock nut to 175 pound-inches. m. Rotate crankshaft as necessry to position camshaft lobes (cams) in downward position (figs. 3-331 and 3-332) as each of the remaining valve rocker arm covers are installed. n. Loosely install all camshaft preformed hose flange bolts (fig. 3-333). Slide a piece of shim stock between the lip of the preformed intercylinder hose and the mating faces of the valve rocker arm cover and cylinder to remove any possible creases. 'righten the flange bolts. NOTE Do not damage lip of preformed intercyl- inder hose. Any defect will be a source of an oiJ leak. o. Install two new cover plate gaskets (5, fig. 3-63) on each of 12 rocket· arm covers. Install 24 valve adjusting screw cover plates (3) o n reeker arm cov- ers and 12 injector tube clamp supports (2) on cover plates at locations shown i n figure 3.45_ Secure 3·236 Change 2 Figure .1-333. /nstalling camshaft i11le1·cy/i11clcr hosej1ange bolts. supports and plates to covers with 24 bolts and flat washers (washers under supports (1, fig. 3-63). Se- cure cover plates to rocker arm covers with 24 bolts and flat washers (4). 3-170. Fuel Injector Nole and Holder As- sembly a. Insta!J new preformed packings (fig. 2-86) on fuel injector nozzle holder. Apply a thin coating of grease on the flat washer (gasket) (fig. 2-86) to re- • tain gasket in position and install gasket on nozzle assemblies. b. InstaU fuel iJ1jcctor nozzle and holder assem- blies ush1g crow-foot attachment (wrench) (part number J 1610167). Torque tighten to 500 pound-inches after connecting lhe fuel injector tube to the nozzl e. 3-171. Shroud Plates and Cylinder Deflec- tors a. Install five right intercylinder deflectors (fig. 3-61) and five intercylinde1· cle,tlector hooks. Install left intercylinder hooks and deflectors in the same manner. Secure the hooks with ten self-locking nuts and flat washers (fig_ 3-60). b. Install five right intercylinder head deflectors and hooks (fig. 3-60) and five left intercylinder head deflectors and hooks and secure with ten self- locking nuts and washers. ) )