Dimension & Clearance Specifications - Piston Rings

NOTE: End Gap Measured In Cylinder Bore.


Piston Compression Ring Gap
(Production-Top Groove) 0.25 - 0.40 mm (0.010 - 0.016 inch)

Piston Compression Ring Gap
(Production-2nd Groove) 0.46 - 0.66 mm (0.018 - 0.026 inch (Maximum)

Piston Compression Ring Gap
(Service-Top Groove) 0.5 mm (Maximum) (0.19 inch (Maximum)

Piston Compression Ring Gap
(Service-2nd Groove) 0.8 mm (Maximum) (0.31 inch (Maximum)

Piston Compression Ring Groove Clearance
(Production-Top Groove) 0.030 - 0.070 mm (0.0012 - 0.0027 inch)

Piston Compression Ring Groove Clearance
(Production-2nd Groove) 0.040 - 0.080 mm (0.0015 - 0.0031 inch)

Piston Compression Ring Groove Clearance
(Service) 0.085 mm (Maximum) (0.0033 inch (Maximum)

Piston Oil Ring Gap
(Production) 0.25 - 0.76 mm (0.010 - 0.029 inch)

Piston Oil Ring Gap
(Service) 0.90 mm (Maximum) (0.035 inch (Maximum)

Piston Oil Ring Groove Clearance
(Production) 0.046 - 0.096 mm (0.0018 - 0.0037 inch)

Piston Oil Ring Groove Clearance
(Service) 0.10 mm (Maximum) (0.0039 inch (Maximum)