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After installing a new set of rings, measure the ring-to-groove clearances:
Top Ring Clearance
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Standard (New):
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0.065−0.090 mm (0.0026−0.0035 in.)
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Service Limit:
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0.15 mm (0.006 in.)
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Second Ring Clearance
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Standard (New):
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0.030−0.055 mm (0.0012−0.0022 in.)
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Service Limit:
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0.12 mm (0.005 in.)
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