Toyota Workshop Service and Repair Manuals

Piston Ring: Specifications

Piston Ring

Piston ring groove clearance

No.1  ...............................................................................................................................................................  0.03 to 0.07 mm (0.0012 to 0.0028 in.)
No.2  ...............................................................................................................................................................  0.02 to 0.06 mm (0.0008 to 0.0024 in.)

Piston ring end gap

Standard No.1  ................................................................................................................................................  0.25 to 0.35 mm (0.0098 to 0.0138 in.)
No.2  ...............................................................................................................................................................  0.35 to 0.50 mm (0.0138 to 0.0197 in.)
Oil (Side rail)  ................................................................................................................................................  0.10 to 0.35 mm (0.0039 to 0.0138 in.)
Maximum No.1  ..........................................................................................................................................................................  0.91 mm (0.0358 in.)
No.2  ...........................................................................................................................................................................................  1.60 mm (0.0417 in.)
Oil (Side rail)  .............................................................................................................................................................................  0.82 mm (0.0323 in.)