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11-42 ENGINE CYLINDER HEAD AND VALVE bracket side 6EN0591 DEN0711 6LU0013 Inspection Front Cover (1) Check whether the oil hole is blocked, and clean it where necessary. (2) Inspect whether there is abrasion, damage or sintering at the front bearing of left balancing shaft, if any, change the front cover. (3) Check whether the front cover has crack or other damages, if it has, change the front cover assembly. Oil Seal (1) Check whether the lip of oil seal has abrasion or damage. Change the oil seal if necessary. (2) Check whether the lip of oil seal has deterioration. Change the oil seal where necessary. Balancing Shaft (1) Check whether the oil hole is blocked. (2) Inspect whether the journal has sintering or damage, or whether it interferences with the bearing. Change the balanc- ing shaft, bearing or the front cover assembly in case any defect is found. Lubricating Oil Pump (1) Mount the gear of oil pump on the front cover, and then rotate the gear to check whether it can runs smoothly and fixedly. (2) Ensure the contact face of the front cover and the gear flanks of oil pump cover has no lophodont abrasion. (3) Check the side clearance. Standard value: Driving gear: 0.08-0.14mm Driven gear: 0.06-0.12mm Piston and Connecting Rod Mount of Oil Filter (1) Clean the mounting face of the oil filter bracket. (2) Coat the engine oil on the O-ring of oil filter. (3) Screw in the oil filter, when the O-ring contacts the mounting face, screw another 3/4 round (tightening moment: 1.4 kg.m) N |