Diesel Data: Automotive Repair

Piston Ring, Engine

Ring Gap Top Compression Ring 0.008 - 0.014 Inch (in)
2nd Compression Ring 0.0091 - 0.0197 Inch (in)
Oil Control (Steel Rails) 0.010 - 0.030 Inch (in)
Ring Groove Clearance
Top and Second Compression Ring 0.0014 - 0.0034 Inch (in)
Oil Ring (Steel Rails) 0.0015 - 0.0073 Inch (in)
Ring Width
Top Compression Ring 0.0461 - 0.0469 Inch (in)
2nd Compression Ring 0.058 - 0.059 Inch (in)
Oil Ring (Steel Rails) 0.0176 - 0.0186 Inch (in)