Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston ring end gap - top 0.15 - 0.30 mm (0.006 - 0.012 inch)
Piston ring end gap - intermediate 0.25 - 0.50 mm (0.0098 - 0.0197 inch)
Piston ring end gap - oil control 0.15 - 0.65 mm (0.0059 - 0.0256 inch)
Piston ring width - top and intermediate 1.50 - 1.48 mm (0.0590 - 0.0582 inch)
Piston ring-to-groove clearance - top 0.020 - 0.060 mm (0.0008 - 0.0020 inch)
Piston ring-to-groove clearance - intermediate 0.020 - 0.060 mm (0.0008 - 0.0020 inch)