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6A-62 ENGINE MECHANICAL (C24SE, C22NE, 22LE, 20LE) Inspection Out-of-round (run-out)-middle bearing shell removed when mounting on front and rear bearing. Permissible out-of-round - see "Technical Data" Bearing Free Play Measurement Two methods for measuring bearing free play are described - 1. Plastigage method and 2. micrometer and gauge method. The two procedures are suitable for measuring both con-rod and main bearing free play. For both methods ensure con-rod and main bearing caps are identified (1) prior to removal as they are machine matched. 1.Plastigage Method 1. Remove bearing cap and shell. 2. Lightly coat journals and bearings with engine oil to Installation 1. Lay a length of Plastigage across width of crank pin and Important! Do not allow crankshaft to rotate. Torque - Angle Method Main bearing cap bolt - 60 N ⋅m (6.1 kgf⋅m) +40° + to 50°. Con-rod bearing cap bolts - 35 N ⋅m (3.6 kgf⋅m) +45°. Removal 1. Remove bearing cap and shell. Measure Width of Plastigage -use scale supplied with Plastigage. If con-rod bearing clearance exceeds 0.031mm/0.001in or main journal bearing clearance exceeds 0.04mm/0.02in. - check crankshaft journal diameters - see corresponding operation. Replace bearing if crankshaft is within specification - see "Technical Data" |