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PRECAUTIONS EM-267 < PRECAUTION > [K9K] C D E F G H I J K L M A EM N P O Installation of Thread Inserts INFOID:0000000010282047 Threaded holes on all engine component parts can be repaired by using thread inserts. Precautions For Engine Service INFOID:0000000010282048 DISCONNECTING FUEL PIPING • Before starting work, check no fire or spark producing items are in the work area. DRAINING ENGINE COOLANT Drain engine coolant and engine oil when the engine is cooled. INSPECTION, REPAIR AND REPLACEMENT Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and REMOVAL AND DISASSEMBLY • When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin- structed operations. • Exercise maximum care to avoid damage to mating or sliding surfaces. check that dowel pins are installed in the original position. • Must cover openings of engine system with a tape or equivalent, to seal out foreign materials. opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be used ASSEMBLY AND INSTALLATION • Use torque wrench to tighten bolts or nuts to specification. ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified, • Replace with new gasket, packing, oil seal or O-ring. any restriction and blockage. • Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust. Before assembly, oil sliding surfaces well. • After disassembling, or exposing any internal engine parts, change engine oil and replace oil filter with a new one. • Release air within route when refilling after draining engine coolant. exhaust gases for leakage. |