Fitting Pistons

Using a feeler gauge, measure piston-to-cylinder bore clearance. If clearance is near or exceeds 0.002" (0.05 mm), measure each piston and cylinder. If piston clearance exceeds service limit, rebore cylinder and install oversize piston.
Measure piston diameter at a point 0.6" (15 mm) from bottom of piston skirt. If diameter is not within specification, replace piston. See PISTON DIAMETER table. See PISTONS, PINS & RINGS table under ENGINE SPECIFICATIONS.

PISTON DIAMETER

Application ⁽¹⁾

In. (mm)

Standard (New)

3.1882-3.1886 (80.980-80.990)

Service Limit

3.1878 (80.970)

Oversize 0.010" (0.25 mm)

3.1980-3.1984 (81.230-81.240)

⁽¹⁾	Measured at 0.6" (15 mm) from bottom of piston skirt.