PISTON PIN CLEARANCE INSPECTION [WLT-1, WLT-2, WL-3]

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1. Measure each piston pin bore diameter in the X and Y directions at the four points (A, B, C, and D) as shown in the figure.

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Standard piston pin bore diameter

31.997—32.007 mm {1.2598—1.2601 in}

2. Measure each connecting rod small end inner diameter in the X and Y directions as shown in the figure.

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Standard connecting rod small end inner diameter

32.012—32.033 mm {1.2604—1.2611 in}

3. Measure each piston pin diameter in the X and Y directions at the four points (A, B, C and D) as shown in the figure.

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Standard piston pin diameter

31.994—32.000 mm {1.25961—1.25984 in}

4. Calculate the piston pin-to-piston pin bore clearance.

• If it is not within the specification, replace the piston or the piston pin.

Standard piston pin-to-piston pin bore clearance

–0.003—0.013 mm {–0.00011—0.00051 in}

5. Calculate the connecting rod small end-to-piston pin clearance.

• If it is not within the specification, replace the connecting rod or the piston pin.

Standard connecting rod small end-to-piston pin clearance

0.012—0.039 mm {0.00048—0.00153 in}