Toyota Workshop Service and Repair Manuals

Piston Ring: Specifications

Ring Groove Clearance 
No.1 ...........................................................................................................................................................................................................  0.020 - 0.070 mm
No.2 ...........................................................................................................................................................................................................  0.020 - 0.060 mm
Oil (side rail) ..............................................................................................................................................................................................  0.070 - 0.150 mm

Standard End Gap
No.1 ...............................................................................................................................................................................................................  0.30 - 0.40 mm
No.2 ...............................................................................................................................................................................................................  0.47 - 0.62 mm
Oil (side rail) ..................................................................................................................................................................................................  0.10 - 0.35 mm

Maximum End Gap
No.1 ..........................................................................................................................................................................................................................  0.89 mm
No.2 ..........................................................................................................................................................................................................................  1.37 mm
Oil (side rail) ............................................................................................................................................................................................................  0.73 mm