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EM-94 < DISASSEMBLY AND ASSEMBLY > ENGINE UNIT • Measure diameter of piston pin using suitable tool. Connecting Rod Bushing Oil Clearance (Small End) (Connecting rod small end oil clearance) = (Inside diameter of con- necting rod small end) – (Piston pin diameter) • If measured value exceeds the standard, replace the connecting rod assembly and/or piston and piston pin assembly. • If replacing the piston and piston pin assembly, use the Table for Selective Fitting for Piston to select the piston corresponding to the applicable bore grade of the cylinder block to be used. Refer to EM-101, "How to Select Piston and Bearing" Factory installed parts grading: • Only grade 0 is available. Unit: mm (in) CYLINDER BLOCK DISTORTION • Remove any oil, scale, gasket, sealant and carbon deposits from the cylinder block surface. CAUTION: Do not allow any debris to enter the oil or coolant passages. • Measure block upper face for distortion in six directions as shown. • If measurement exceeds the limit, replace cylinder block. MAIN BEARING HOUSING INSIDE DIAMETER Standard : 21.989 - 21.995 mm (0.8657 - 0.8659 in) PBIC0117E Standard : 0.005 - 0.017 mm (0.0002 - 0.0007 in) KBIA2536E Grade 0 Connecting rod bushing inside diameter 22.000 - 22.006 (0.8661 - 0.8664) Piston pin diameter 21.989 - 21.995 (0.8657 - 0.8659) Piston pin hole diameter 21.993 - 21.999 (0.8659 - 0.8661) KBIA2496E Standard : 0.03 mm (0.0012 in) Limit : 0.1 mm (0.004 in) SEM123C |