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CYLINDER BLOCK EM-101 C D E F G H I J K L M A EM Piston To Piston Pin Clearance (Piston to piston pin clearance) = (Piston pin hole diameter) – (Piston ● If out of the standard, replace piston/piston pin assembly. ● Refer to piston selection table to replace piston/piston pin . NOTE: ● Piston is available together with piston pin as assembly. ● Piston pin (piston pin hole) grade is provided only for the parts PISTON RING SIDE CLEARANCE ● Measure the side clearance of piston ring and piston ring groove ● If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit, PISTON RING END GAP ● Check if the inner diameter of cylinder bore is within the specifi- EM-105, "Piston to Cylinder Bore Clearance" . ● Lubricate with new engine oil to piston and piston ring, and then ● If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit, Standard : 0.002 - 0.006 mm (0.0001 - 0.0002 in) PBIC2372E Standard: Top ring : 0.045 - 0.080 mm (0.0018 - 0.0031 in) 2nd ring : 0.030 - 0.070 mm (0.0012 - 0.0028 in) Oil ring : 0.065 - 0.135 mm (0.0026 - 0.0053 in) Limit: Top ring : 0.11 mm (0.0043 in) 2nd ring : 0.10 mm (0.0039 in) SEM024AA Standard: Top ring 0.22 - 0.32 mm (0.0087 - 0.0126 in) 2nd ring 0.22 - 0.32 mm (0.0087 - 0.0126 in) Oil ring 0.20 - 0.50 mm (0.0079 - 0.0197 in) Limit: Top ring 0.56 mm (0.0220 in) 2nd ring 0.56 mm (0.0220 in) Oil ring 0.86 mm (0.0339 in) PBIC0118E |