Piston Pin Clearance Inspection

PISTON PIN CLEARANCE INSPECTION





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

Standard diameter
21.008-21.012 mm (0.82709-0.82724 in)





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

Standard diameter
21.017-21.031 mm (0.82744-0.82799 in)





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

Standard diameter
21.011-21.013 mm (0.82721-0.82728 in)

4. Calculate the piston pin-to-piston pin bore clearance.
^ If not as specified, replace the piston and/or piston pin.

Standard clearance
-0.005-0.001 mm (-0.00019-0.00003 in)

5. Calculate small end-to-piston pin clearance of the connecting rod.
^ If small end-to-piston pin clearance of the connecting rod exceeds the maximum clearance, replace the connecting rod or piston pin.

Standard clearance
0.004-0.020 mm (0.00016-0.00078 in)
Maximum clearance
0.035 mm (0.0013 in)