TM5-6115-593-34NAVFAC P-8-631-34TO-35C2-3-463-2(5) Snug tighten screws (24) at four corners.(6) Finish tightening oil pan screws. Torque to20 to 25 foot-pounds (27 to 34 joules).(7) Install two screws and washers securingbattery cables and clamps to engine.(8) Install support brackets (31) with screws (1),lockwashers (2), washers (3), screws (29),and lockwashers (30).(9) Install six screws securing bypass oil filtersupport bracket to engine block, thenconnect bypass oil filter inlet hose couplingat top of rear bypass oil filter.(10) Connect two bypass oil filter hosecouplings to tie on oil pan.(11) Install ether lines with six clamps andscrews and attach ether line fittings atmanifolds and solenoid valve.(12) Connect fuel inlet hose coupling at fuelfilters.(13) Connect engine preheat hose coupling onradiator line and two couplings on preheatassembly. Install preheat hose supportbrackets, screws, and washers.(14) Install temperature sensor electricalconnector, then connect cable and securewith clamp, screw, and washer.(15) Refill engine with proper lubricating oil inaccordance with the Operator/Crew andOrganizational Maintenance manual.13-21. OIL PUMP. To inspect, test, replace, and repairthe oil pump, remove the oil pan in accordance withparagraph 13-20, refer to figure 13-35, and proceed asfollows:a.DisassemblyandInspection. To inspect thecomponents of the lubricating oil pump, thepump must first be removed and disassembled.Proceed as follows:(1) Remove suction tube and discharge tubefrom oil pump and lift off pump.(2) Remove screws (16, 20, and 21) andlockplates (17) securing pump body (38) tocover (25).(3) Carefully drive cover (25) (with soft hammeror brass punch) from body (38) and removegasket (32).(4) Remove idler gears (29) from shafts (26);remove shafts from pump body (38).(5) Remove nut (6), spacer (7), intermediatedrive gear (8) and thrust washer (11). Pressout shaft (14).(6) Press drive gear (15) from drive shaft (30).Remove drive shaft assembly from body.(7) Press internal gear (31) from shaft (30), ifshaft or gear is worn or damaged.(8) Remove plunger cap (33); remove spring(34) and plunger (35) from body (38).(9) Inspect and replace all bushings and shaftsif worn or damaged.(10) Replace cover, or body if finished surfacesin gear pockets are scored or visibly worn.(11) The drive and idler gears must be replacedif worn, scored or damaged. Check allhardware for worn or damaged threads.Replace as necessary.b.Test. Following reassembly, crank gears byhand; they should turn smoothly and freely.c.ReassemblyandRepair. Repair by replacingany worn or damaged parts and proceed as follows:13-68
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