TM 5-4320-300-146-5. OIL COOLER (CONT)Location/itemActionRemarksINSPECTIONCAUTIONIf there is leakage between the lubrication system and cooling system, change the oil and filter.Also flush the cooling system to remove oil contaminants. Refer to LO 5-4320-300-12 (figure 4-1).6.Oil coolerInspect for corrosion, holes, cracks, or othercoredamage. Inspect sealing surfaces for corrosionand pitting.7.Oil coolerInspect for corrosion, cracks, or other dam-housingage. Inspect sealing surfaces for corrosion andpitting.INSTALLATION8.GasketsPosition new gaskets on sealing surfaces of oil cooler core and housing.CAUTIONEngine damage may occur if the core is installed with inlet and outlet openings in the reverseposition. Aline matchmarks to prevent any remaining foreign particles and sludge from enteringand circulating through the engine.9.Oil coolerAline matchmarks and insert core into housing.coreInsert mounting bolts through holes in housing,gaskets, and core.10. Oil coolerClean any remaining gasket material from matingsealing surface on bottom of water pump.Positionassembled oil cooler on engine.Install mountingbolts and torque to 13 to 17 ft lb (18 to 23 N.m).Install lower radiator hose on oil cooler housingand tighten clamp securely.6-14
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