Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

PISTON RING GAP & GROOVE CLEARANCE

Piston Ring End Gap
First Compression Ring 0.25-0.46 mm (0.010-0.018 in)
Second Compression Ring 0.58-0.84 mm (0.023-0.033 in)

Piston Ring to Groove Clearance
First Compression Ring 0.033-0.079 mm (0.0013-0.0031 in)
Second Compression Ring 0.033-0.079 mm (0.0013-0.0031 in)