Operation CHARM: Car repair manuals for everyone.

Piston Ring

Piston Ring Groove Width Compression (Top) 1.230 - 1.245 Millimeter (mm)
Compression (Bottom) 1.530 - 1.545 Millimeter (mm)
Oil Ring 3.030 - 3.055 Millimeter (mm)
Side Clearance Compression (Top) 0.040 - 0.075 Millimeter (mm)
Compression (Bottom) 0.040 - 0.085 Millimeter (mm)
Oil Ring Snug Fit
Service Limit 0.10 mm
Compression (Top) 0.50 mm Max
Compression (Bottom) 0.65 mm Max
Oil Ring 0.90 mm Max
Piston Ring Gap
Specification 82.4 mm (3.2441 inch) Diameter Gauge.)
Compression (Top) - Gauge Diameter 0.100 - 0.250 Millimeter (mm)
Compression (Bottom) - Gauge Diameter 0.27 - 0.42 Millimeter (mm)
Oil Ring (Steel Rail) - Gauge Diameter 0.15 - 0.65 Millimeter (mm)
Compression (Top) - Service Limit 0.50 mm Max
Compression (Bottom) - Service Limit 0.65 mm Max
Oil Ring (Steel Rail) - Service Limit 0.90 mm Max