CYLINDER BLOCK/CRANKCASE
Page 4B-1990-828631R3 MARCH 1999
Piston
MEASURING PISTON
1. Measure the piston at a point 0.2 in. (5.0 mm) from the bottom.
55838
b
a
a-Piston Diameter
b-0.2 in. (5.0 mm)
Piston Diameter “a”
Diameter (Standard) 2.4783 - 2.4789 in.
(62.950 - 62.965 mm)
(Oversize) 0.020 in. (0.50 mm) 2.4983 - 2.4989 in.
(63.450 - 63.465 mm)
Piston to Cylinder Clearance
0.0014 - 0.0026 in. (0.035 - 0.065 mm)
Minimum bore measurement
– maximum piston measurement
= piston to cylinder clearance
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