|
|
PISTON RING Unit: mm (in) Standard Limit Side clearance Top 0.05 - 0.07 (0.0020 - 0.0028) 0.5 (0.020) 2nd 0.04 - 0.08 (0.0016 - 0.0031) 0.3 (0.012) Oil ring 0.02 - 0.06 (0.0008 - 0.0024) 0.15 (0.0059) End gap Top 0.30 - 0.45 (0.0118 - 0.0177) 1.5 (0.059) 2nd 0.50 - 0.65 (0.0197 - 0.0256) 1.5 (0.059) Oil (rail ring) 0.25 - 0.45 (0.0098 - 0.0177) 1.5 (0.059) PISTON PIN Unit: mm (in) Piston pin outer diameter 32.993 - 33.000 (1.2989 - 1.2992) Interference fit of piston pin to piston −0.003 to 0.012 (−0.0001 to 0.0005) Piston pin to connecting rod bushing clearance Standard 0.025 - 0.045 (0.0010 - 0.0018) Limit 0.045 (0.0018) *: Values measured at ambient temperature of 20°C (68°F) Connecting Rod Unit: mm (in) Center distance 154.5 (6.083) Bend [per 100 (3.94)] Limit 0.05 (0.0020) Torsion [per 100 (3.94)] Limit 0.05 (0.0020) Connecting rod small end inner diameter 35.087 - 36.000 (1.3814 - 1.4173) Piston pin bushing inner diameter* 33.025 - 33.038 (1.3002 - 1.3007) Connecting rod big end inner diameter 59.987 - 60.000 (2.3617 - 2.3622) Crankshaft journal bearing inner diameter* 70.955 - 70.990 (2.7935 - 2.7949) Side clearance Standard 0.10 - 0.22 (0.0039 - 0.0087) Limit 0.22 (0.0087) *: After installing in connecting rod SERVICE DATA AND SPECIFICATIONS (SDS) ZD Piston, Piston Ring and Piston Pin (Cont’d) EM-91 |