Lexus Workshop Service and Repair Manuals

Piston: Specifications

Piston

Diameter

Standard ...............................................................................................................................................  93.960 to 93.980 mm (3.6992 to 3.7000 inch)
Maximum .............................................................................................................................................................................  93.830 mm (3.6941 inch)

Oil Clearance

Standard ...................................................................................................................................................  0.020 to 0.052 mm (0.0008 to 0.0020 inch)
Maximum ...............................................................................................................................................................................  0.370 mm (0.0146 inch)

Pin Diameter

Mark A ................................................................................................................................................  21.997 to 22.000 mm (0.8660 to 0.8661 inch)
Mark B .................................................................................................................................................  22.000 to 22.003 mm (0.8661 to 0.8663 inch)
Mark C .................................................................................................................................................  22.003 to 22.006 mm (0.8663 to 0.8664 inch)

Pin Oil Clearance

Standard .................................................................................................................................................  0.002 to 0.004 mm (0.00007 to 0.0001 inch)
Maximum ...............................................................................................................................................................................  0.015 mm (0.0006 inch)

Pin Hole Inside Diameter

Mark A ................................................................................................................................................  21.998 to 22.001 mm (0.8661 to 0.8662 inch)
Mark B .................................................................................................................................................  22.001 to 22.004 mm (0.8662 to 0.8663 inch)
Mark C .................................................................................................................................................  22.004 to 22.007 mm (0.8663 to 0.8664 inch)

Bushing Inside Diameter

Mark A ................................................................................................................................................  22.005 to 22.008 mm (0.8663 to 0.8665 inch)
Mark B .................................................................................................................................................  22.009 to 22.011 mm (0.8665 to 0.8666 inch)
Mark C .................................................................................................................................................  22.011 to 22.014 mm (0.8666 to 0.8667 inch)

Pin To Bushing Oil Clearance

Standard ...................................................................................................................................................  0.005 to 0.011 mm (0.0002 to 0.0004 inch)
Maximum ..............................................................................................................................................................................  0.030 mm (0.0012 inch) 

Ring Groove Clearance

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

Ring End Gap

Standard

No. 1 ......................................................................................................................................................  0.23 to 0.33 mm (0.0091 to 0.0130 inch)
No. 2 ......................................................................................................................................................  0.35 to 0.45 mm (0.0138 to 0.0177 inch)
Oil ..........................................................................................................................................................  0.10 to 0.40 mm (0.0039 to 0.0157 inch)

Maximum

No. 1 ..................................................................................................................................................................................  0.40 mm (0.0157 inch)
No. 2 ..................................................................................................................................................................................  0.50 mm (0.0197 inch)
Oil ......................................................................................................................................................................................  0.45 mm (0.0177 inch)