Civic Sedan L4-1590cc 1.6L SOHC (D16A6) MFI (1990)
Piston Ring: Service and Repair
PISTON RING INSTALLATION
1. Using a ring expander, remove old piston rings.
2. Clean all ring grooves thoroughly.
NOTE:
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Use a squared-off broken ring or ring groove cleaner with blade to fit piston grooves.
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Top ring groove is 1.2 mm wide.
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Second ring groove is 1.5 mm wide.
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Oil ring groove is 2.8 mm wide.
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File down blade if necessary.
CAUTION: Do not use a wire brush to clean ring lands, or cut ring lands deeper with cleaning tool.
NOTE: If piston is to be separated from connecting rod, do not install new rings yet.
3. Install new rings in proper sequence and position.
NOTE: Do not re-use old piston rings.