Piston Ring Replacement
  1. Using a piston, push a new ring (A) into the cylinder bore 15−20 mm (0.6−0.8 in.) from the bottom.
  1. Measure the piston ring end-gap (B) with a feeler gauge:
    • If the gap is too small, check to see if you have the proper rings for your engine.
    • If the gap is too large, recheck the cylinder bore diameter against the wear limits.
      If the bore is over the service limit, the engine block must be rebored.
    Piston Ring End-Gap
    Top Ring:
    Standard (New):
    0.15−0.30 mm (0.006−0.012 in.)
    Service Limit:
    0.60 mm (0.024 in.)
    Second Ring:
    Standard (New):
    0.30−0.42 mm (0.012−0.017 in.)
    Service Limit:
    0.65 mm (0.026 in.)
    Oil Ring:
    Standard (New):
    0.20−0.70 mm (0.008−0.028 in.)
    Service Limit:
    0.80 mm (0.031 in.)