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01-9 0000-00 5) Guidelines on Engine Service (1) Cautions before service works Make sure to disconnect the negative (-) cable from the battery to prevent any damage to electric systems. Make sure to clean the working area and to prepare the necessary tools before service works. Always place the ignition switch to OFF position if not required. Otherwise, there could be unexpected damage to electric devices or personal injuries due to short-circuit. To prevent the foreign material from entering into the fuel injection system, completely seal the inlets of HP pump, fuel hoses and high pressure pipes. To remoev the engine, use the dedicated equipments such as engine jack, transmission jack, engine stand and engine crane. - - - - - (2) Engine and accessories When disassembling the engine, related parts (bolts, gaskets, etc.) should be stored as a set. Clean the components completely with engine oil before assembling if needed. Fully drain the engine oil, coolant and fuel from the vehicle and seal the inlets with the plugs before removing the engine. All the interference should be eliminated before removing the engine. - - - - To prevent the personal injuries and vehicle damages that can be caused by mistakes during service and to provide the optimized performance and safety after service works, the service technicials must keep the basic cautions and service guidelines below. These could be easily forgotten during service works. Engine has a lot of precise components. The specified tightening torque and correct procedures should be kept during service works. And, the working area is always clean and well prepared. To prevent any damage to electric systems, make sure to disconnect the negative (-) cable from the battery and place the ignition switch to OFF position before servicing. Use only the specified parts with same ratings when replacing the electric devices. Check the grounds and connections for looseness. - - (3) Electric devices Extraordinary care should be taken when servicing the electric systems. Currently, the engine uses a lot of electric devices. Short circuit and poor contact may cause the low engine performance, incomplete combustion and other abnormalities. When working with the fuel or oil systems in enclosed area, always keep the working area well- ventilated and never allow anybody to smoke. Gaskets and seals on the fuel and oil systems should be replaced with new ones. All bolts and nuts should be tightened as specified. Make sure to check the connections for leak after installation. - - - (4) Fuel and lubrication system |