Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring Specification
Ring Gap Clearance Top Compression Ring 0.229-0.610mm (0.0090-0.0240 in.)
2nd Compression Ring 0.483-0.965mm (0.0190-0.0380in.)
Oil Control Steel Rails 0.254-1.500mm (0.010-0.060in.)
Ring Side Clearance Compression Rings 0.042-0.084mm (0.0017-0.0033in.)
Oil Control Rings 0.06-0.21mm (0.0024-0.0083in.)
Piston Ring Groove Height Compression Rings 1.530-1.555mm (0.0602-0.0612in.)
Oil Control Ring 4.035-4.060mm (0.1589-0.1598in.)
Piston ring Groove Diameter No. 1 Compression Ring 88.39-88.65mm (3.48-3.49in.)
No. 2 Compression Ring 87.63-87.88mm (3.45-3.46 in.)
Oil Control Ring 89.66-89.92mm (3.53-3.54in.)