Piston ring end gap (NA8)

End gap Top: 0.006—0.011 in (0.15—0.30 mm) Second: 0.006—0.011 in (0.15—0.30 mm) Oil rail: 0.008—0.027 in (0.20—0.70 mm) Maximum: 0.039 in (1.0 mm)End gap Top: 0.15—0.30mm {0.006—0.011 in} Second: 0.15—0.30mm {0.006—0.011 in} Oil rail: 0.20—0.70mm {0.008—0.027 in} Maximum: 1.0mm {0.039 in}

Procedure starts B–55/PDF92: insert ring and use piston to push squarely to bottom of ring travel; measure with feeler gauge. Maximum applies to the listed ring types.