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4. Measure outer diameter “Dp” of each crankshaft pin journal. 5. Calculate connecting rod bearing clearance. Connecting rod bearing clearance = C − Dp Standard: 0.014 - 0.039 mm (0.0006 - 0.0015 in) If it exceeds the limit, replace bearing. I If a new bearing, crankshaft or connecting rod is replaced, Connecting rod bearing grade number: Crankshaft pin journal grade number Connecting rod bearing grade color 0 — 1 Brown 2 Green Method B (Using Plastigage) CAUTION: I Do not turn crankshaft or connecting rod while Plastigage I If incorrect bearing clearance exists, use a thicker or CONNECTING ROD BUSHING CLEARANCE (Small end) NCEM0026S09 1. Measure inner diameter “C” of bushing. 2. Measure outer diameter “Dp” of piston pin. 3. Calculate connecting rod bushing clearance. Connecting rod bushing clearance = C − Dp Standard: 0.005 - 0.017 mm (0.0002 - 0.0007 in) Limit: 0.023 mm (0.0009 in) If it exceeds the limit, replace connecting rod assembly or AEM028 SEM437CA Crankshaft pin journal No. 1 No. 4 EM142 AEM029 AEM030 Micrometer CYLINDER BLOCK QG Inspection (Cont’d) EM-59 |