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EM-108 < UNIT DISASSEMBLY AND ASSEMBLY > ENGINE UNIT • Place a V-block on a precise flat table to support the journals on both ends of the crankshaft. • Measure at No. 3 journal using suitable tool. • While rotating crankshaft, read the movement of the pointer. • Half of the movement shows the runout. • If measurement exceeds the limit, replace crankshaft. CONNECTING ROD BEARING OIL CLEARANCE Method of Measurement • Install connecting rod bearings to the connecting rod and cap. Tighten connecting rod bolts to the specified EM-93, "Disassembly and Assembly" Measure inside diameter of connecting rod bearing. (Oil clearance) = (Inside diameter of connecting rod bearing) – (Crankshaft pin diameter) • If clearance cannot be adjusted within the standard, grind crank- shaft pin and use undersized bearing. Refer to . Method of Using Plastigage • Remove oil and dust on the crankshaft pin and surfaces of each bearing completely. • Cut a plastigage slightly shorter than the bearing width, and place it in the crankshaft axial direction, avoiding oil holes. • Install the connecting rod bearings to the connecting rod and con- necting rod bearing cap, and tighten the connecting rod bolts to the specified torque. CAUTION: Do not rotate crankshaft with plastigage installed. • Remove the connecting rod bearing cap and bearings. Measure the plastigage width using the scale on the plastigage bag. NOTE: The procedure when the measured value exceeds the repair limit is the same as that described in “Method of Measurement”. MAIN BEARING OIL CLEARANCE Method of Measurement • Install the main bearings to the cylinder block and main bearing cap. Measure the main bearing inside diameter with the bearing cap bolts tightened to the specified torque. Refer to . (Oil clearance) = (Inside diameter of main bearing) – (Crankshaft journal diameter) Limit : Less than 0.05 mm (0.002 in) PBIC0129E Standard : 0.020 - 0.039 mm (0.0008 - 0.0015 in) Limit : 0.055 mm (0.0022 in) PBIC1642E KBIA2550E Standard: No. 1 and 5 journals : 0.001 - 0.011 mm (0.00004 - 0.0004 in) No. 2, 3 and 4 journals : 0.007 - 0.017 mm (0.0003 - 0.0007 in) PBIC1644E |