Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston ring end gap - top 0.15-0.30 mm (0.0059-0.0118 inch)
Piston ring end gap - intermediate 0.25-0.50 mm (0.0098-0.0196 inch)
Piston ring end gap - oil control 0.15-0.65 mm (0.0059-0.0256 inch)
Piston ring groove width - top 1.502-1.505 mm (0.0591-0.0592 inch)
Piston ring groove width - intermediate 1.52-1.54 mm (0.0598-0.0606 inch)
Piston ring groove width - oil control 3.030-3.050 mm (0.1193-0.1201 inch)
Piston ring width 1.49-1.46 mm(0.0587-0.0575 inch)
Piston ring-to-groove clearance - top 0.030-0.050 mm (0.0012-0.0020 inch)
Piston ring-to-groove clearance - intermediate 0.030-0.080 mm (0.0012-0.0031 inch)