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 Figure 3-329. I 11stc1/li11g camsha}1 drive sh. timing is correct. When timing mark is not alined, withdraw camshaft drive shaft, and repeat timing procedure and again check valve timing. When correct valve timing is obtained, install right oil transfer plug (fig. 3-330) using mechanical puller part number 8761297 and install camshaft drive gearshaft oil transfer plug retaining ring. NOTE When correct timing cannot be obtained as described above, it may be necessary to set timing mark 1/8 to 1/4-inch out of alinement before installing drive shaft. l. Set cylinder No. 6R intake valve clearance by rotating crankshaft counterclockwise approxi- mately 1/4 turn in order to have No. 6R intake valve rocker arm roller on base ci1·cle of camshaft. Set intake valve clearance to final 0.010-inch set- ting, using thickness gag� blade part number 10882615 as shown in figure 3-326. Torque tighten adjusting screw lock nut to 175 pound-inches after adjustment. m. Rotate the crankshaft counterclockwise ap- fl proximately 270 degrees from "6R INT CLOSE 0.100 CLR" until flywheel timing mark "6L INT CLOSE 0.100 CLR" is alincd with timing pointer. Install the left camshaft and No. 6L valve rocker cover following same procedure as outlined for iight camshaft and No. 6R valve rocker cover. 3·234 Change 2 igure 3·330. illsta/li11g right ca111sh oil Irons/er plug. n. r nstall new gaskecs and camshaft gear housing covers (fig. 3-70) on each camshaft gear housing and secure each cover with bolts and nat washers. + 3·169. Fuel Injection Pump and Timing a. Install woodruff key and injection pump cou- pling half on pump shaft and secure wit h lockwasher and plain nut (fig. 245). I nsert a I hardened steel rod in one of the sle eve alinement holes, torque ti ghten plain nut to 900 pound- inches. Install a new preformed packing in g roove in face of coupling sleeve. Use a ligh t coating of grease to hold preformed packing in position. b. Remove fuel injection pump timing hole plug (fig. 2-47). Turn injection pump shaft with drive coupling until marked gear tooth is visible in tim- ing hole (fig. 2-48). NOTE It is possible to have the timing mark on the coupling alined with mark on the in- jection pump bearing retaining plate (fig. 2-49) and not have the marked gear tooth visible in timing hole. Make sure marked tooth (fig. 2-48), is visible when timing marks are alined. If the mm·ked tooth is not visible, rotate the pump shaft 360 de- grees in either direction. Aline the cou- pling timing marks and the marked tooth will be visible in the timing hole. Install timing hole plug. CAUTION Timing pointer must aline with correct timing mark on flywheel. c. Turn engine flywheel (fig. 2-51), using splined wrench part number 10882747 and aline "lR INJ PORT CLOSE" timing mark on flywheel with tim- ing pointer. If camshaft lobes are not in the posi- ) )