TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download

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TM 9·28 1 5·220·34 b. Installation. NOTE To increase engine oil pressure, one o r more shim washers can be installed be· tween the cover and the spring. To decrease oil pressure, remove shim washers. Refer to paragraph 1·24 for recommended oil pressures. (1) Install valve sleeve (fig. 2·108), valve, spring, and stop. Install shim washers and cover using new gasket. (2) Install two self.tking nuts and flat washers securing cover to crankshaft damper and oil filler housing. 2-34. Oil Filter Bypass Valve a. Remoual. (1) Remove oil filter bypass plug (fig. 2-109). Remove and discard gasket. (2) Remove bypass valve spring and bypass valve. Figure 2·109. Removing or inJral/ing oil jilter bypa valve. b. lrtstallatio11. (1) Install bypass valve (fig. 2·109). Position bypass valve spring on valve. (2) Install plug using new gasket. 2·72 2-35. Oil Cooler Bypass Valve a. Removal. (1) Remove oil cooler bypass plug {fig. 2-110). Remove and discard gasket. (2) Remove bypass valve spring and bypass valve.