Toyota Workshop Service and Repair Manuals

Piston Ring: Specifications

Piston ring

Groove clearance

No. 1  ........................................................................................................................................................  0.02 to 0.07 mm (0.0008 to 0.0028 in.)
No. 2  ........................................................................................................................................................  0.02 to 0.06 mm (0.0008 to 0.0024 in.)
Oil  ...........................................................................................................................................................  0.07 to 0.15 mm (0.0028 to 0.0060 in.)

End gap

No. 1

Standard  ............................................................................................................................................  0.30 to 0.40 mm (0.0118 to 0.0157 in.)
Maximum  ..........................................................................................................................................................................  1.0 mm (0.039 in.)

No. 2

Standard  ............................................................................................................................................  0.40 to 0.50 mm (0.0157 to 0.0197 in.)
Maximum  ..........................................................................................................................................................................  1.1 mm (0.043 in.)

Oil (Side rail)

Standard  ............................................................................................................................................  0.10 to 0.40 mm (0.0039 to 0.0157 in.)
Maximum  ..........................................................................................................................................................................  1.0 mm (0.039 in.)