PISTON RING INSPECTION
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1. Using the piston, press the piston ring parallel into the cylinder to 43.9 mm {1.73 in} from the upper end of the cylinder block.
2. Measure the piston ring end gap using a feeler gauge.
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• If it exceeds the maximum specification, replace the piston ring.
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Standard piston ring end gap [SKYACTIV-G 1.3, SKYACTIV-G 1.5]
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Top: 0.12—0.17 mm {0.0048—0.0066 in}
Second: 0.17—0.27 mm {0.0067—0.0106 in}
Oil (Rail): 0.10—0.35 mm {0.0040—0.0137 in}
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Standard piston ring end gap [SKYACTIV-G 2.0, SKYACTIV-G 2.5]
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Top: 0.13—0.18 mm {0.0052—0.0070 in}
Second: 0.18—0.28 mm {0.008—0.011 in}
Oil (Rail): 0.10—0.35 mm {0.004—0.013 in}
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Maximum piston ring end gap [SKYACTIV-G 1.3]
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Top: 0.34 mm {0.0132 in}
Second: 0.44 mm {0.0172 in}
Oil (Rail): 0.52 mm {0.0203 in}
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Maximum piston ring end gap [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5]
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Top: 0.35 mm {0.0136 in}
Second: 0.45 mm {0.0176 in}
Oil (Rail): 0.52 mm {0.0203 in}
