FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring Gap
-- Specification 82.4 mm diameter gauge
Compression (top) - gauge diameter 0.100-0.250 Millimeter (mm)
Compression (top) - service limit (Max.) 0.50 Millimeter (mm)
Compression (bottom) - gauge diameter 0.27-0.42 Millimeter (mm)
Compression (bottom) - service limit (Max.) 0.65 Millimeter (mm)
Oil ring (steel rail) - gauge diameter 0.15-0.65 Millimeter (mm)
Oil Ring (steel rail) - service limit (Max.) 0.90 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 0.010 Millimeter (mm)