Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine


Piston Ring Gap and Groove Clearance:
Ring Groove Clearance:
1st Compression Ring
New 0.06 to 0.09 mm
Wear Limit 0.25 mm
2nd Compression Ring
New 0.05 to 0.08 mm
Wear Limit 0.25 mm
Oil Scraper Ring
New 0.03 to 0.06 mm
Wear Limit 0.15 mm
Piston Ring Gap:
1st Compression Ring
New 0.20 to 0.40 mm
Wear Limit 1.00 mm
2nd Compression Ring
New 0.20 to 0.40 mm
Wear Limit 1.00 mm
Oil Scraper Ring
New 0.25 to 0.50 mm
Wear Limit 1.00 mm