Quantcast 3-17.  OIL PRESSURE REGULATING VALVE - TM-9-2815-256-24_89

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ARMY TM 9-2815-256-24 AIR FORCE TO 38G1-96-2 MARINE CORPS TM 2815-24/5 NOTE Apply a light coating of engine lubricating oil (MIL-L-2104) to gasket surface prior to installing new element. j. Install new filter element (1) on oil cooler. k. Service engine lubrication and cooling systems, refer to end item maintenance manual. 3-17.  OIL PRESSURE REGULATING VALVE. 3-17.1.  Removal. a. Drain engine lubrication system, refer to end item maintenance manual. b. Remove crankshaft pulley, refer to paragraph 3-38.1. WARNING Spring   (3,   FIGURE   3-50)   is   under   pressure   and   can   cause   personal   injury   when   plug   (1)   is removed. c. Remove oil pressure regulating valve plug (1) and washer (2). d. Remove oil pressure regulating valve poppet (4) and spring (3). e. Pull valve seat out of cylinder block with a suitable pilot bearing puller. 3-17.2.  Inspection. a. Check valve core for excessive wear and damaged sealing face. b. Check spring for cracks or other damage. 3-17.3.  Installation. CAUTION To prevent damage to valve seat bore, do not drive against raised inner rim of valve seat. a. Drive valve seat into cylinder block with oil pressure relief valve bushing driver (JD248A) and handle (JDG-536) until seat bottoms. NOTE If engine is being repaired due to low oil pressure, replace spring (3, FIGURE 3-50).  If due to high oil pressure, install an additional washer (2). b. Install oil pressure regulating valve poppet (4) and spring (3) in engine block. c. Install washer (2) and plug (1).  Tighten plug to 70 ft- lbs (95 Nm). Change 3 3-65


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