Power Unit
10mm
D1
(0.394in)
D2
D3
10mm
(0.394in)
5-66
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6.
Inspection of Piston Pins
Measure piston pin outer diameter, and replace piston pin
if the outer diameter is over the limit.
7.
Inspection of Piston Pin Clearance
Calculate piston pin clearance, and replace piston and
piston pin together if the clearance is over the limit.
35mm
(1.378in)
Piston Pin Outer Diameter : Standard Value
17.55 mm (0.6909 in)
Functional Limit :
22.97 mm (0.9045 in)
Measuring Locations :
D
and D
10 mm (0.394 in) from top end
1
3
and bottom end respectively
D
35 mm (1.378 in) from the end
2
Calculation of Piston Pin Clearance :
Piston Pin Hole Inner Diameter - Piston Pin
Outer Diameter
Standard Value :
0.003 - 0.007 mm (0.0001181 - 0.0002756 in)
Functional Limit :
0.020mm (0.000787 in)
Use the maximum values of piston pin hole inner
diameters and piston pin outer diameters
measured respectively.
GB
2st X50D2 2011