Toyota Workshop Service and Repair Manuals

Piston: Specifications

Piston 

Piston diameter ..........................................................................................................................................  88.439 to 88.449 mm (3.4818 to 3.4822 inch)
Standard piston oil clearance .........................................................................................................................  0.051 to 0.074 mm (0.0020 to 0.0029 inch)
Maximum piston oil clearance .......................................................................................................................................................  0.10 mm (0.0039 inch)
Piston pin hole bush inside diameter .........................................................................................................  22.001 to 22.010 mm (0.8662 to 0.8665 inch)
Piston pin hole bush inside diameter (Reference)

Mark A ................................................................................................................................................  22.001 to 22.004 mm (0.8662 to 0.8663 inch)
Mark B .................................................................................................................................................  22.005 to 22.007 mm (0.8663 to 0.8664 inch)
Mark C .................................................................................................................................................  22.008 to 22.010 mm (0.8665 to 0.8665 inch)

Ring groove clearance ...................................................................................................................................  0.030 to 0.070 mm (0.0012 to 0.0028 inch)
Standard ring groove clearance

No.1 Ring ..................................................................................................................................................  0.20 to 0.070 mm (0.0008 to 0.0028 inch)
No.2 Ring ................................................................................................................................................  0.020 to 0.060 mm (0.0008 to 0.0024 inch)
Oil (side rail) ...........................................................................................................................................  0.020 to 0.070 mm (0.0008 to 0.0028 inch)