SAFARI

ENGINE 116 Fig. 1 Circuit diagram Fig. 1a Fig. 1b ENGINE LUBRICATION SYSTEM Fig 1 OIL COOLER 3 plate oil cooler with heat rejection rate - 10000 Kcal/Hr.(fig 1a). Piston cooling nozzles fitted in cylinder block to keep the piston temperatures under control for high bmep/pfp (high thermal loads). REMOVAL OF OIL COOLER 1 Drain cooling water from radiator and crankcase. 2 Disconnect exhaust pipe from manifold Loosen exhaust manifold mounting bolts and remove exhaust manifold. 3 Remove starter motor and alternator. 4 Unscrew screws holding oil cooler cover to crankcase and remove oil cooler with cover. Do not loosen the 4 screws at the centre of the oil cooler as they only keep oil cooler cover and oil cooler together. Fig. 1b. Remove remaining 4 screws and separate oil cooler from cover. PRESSURE TESTING OF OIL COOLER 1 Assemble oil cooler and its cover with the gasket between them. Screw on and tighten screws to specified torque.s 2 Fix sealing plate on cover opening. 3 Connect rubber hose to hand operated water pump dipped in hot water container (water temperature 70 to 80 deg C). 4 Pressure test oil cooler at a pressure of approx. 5 bar and check for leakages, if any. 5 Replace leaky oil cooler/cover. 6 Dismantle the assembly. Clean oil passages in cover with kerosene and blow dry with compressed air.