TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Warning: The valve cover is spring loaded. Excercise care when removing cover. Remove 1. Remove two self-locking nuts and flat washers at- taching cover to crankshaft damper and oil filter housing. 2. Remove cover shim washers, and gasket. Discard gasket. 3. Remove stop, spring, and valve. 4. Remove valve sleeve. Note. The valve sleeve may be difficult to remove because of the presence of varnish from the oil. An improvised tool (fig. 2-3) used with mechanical puller-5120-310-4668 may be used to assist in removing valve sleeve. Insert hook end of tool into hole in sleeve and gently tap until sleeve is free. Install 1. Install valve sleeve. 2. Install valve, spring, and stop. 3. Install new gasket, shim washers, and cover. 4. Install two self-locking nuts and flat washers securing cover to crankshaft damper and oil filter housing. Note. To increase engine oil pressure, one or more shim washers can be installed between the cover and the spring. To decrease oil pressure remove shim washers. Refer to paragraph 1-24 for recommended oil pressures. Figure 4-93. Removing or installing engine oil pressure regulating valve. 4-47