Isuzu C240 - Piston Pin

TCM SHOP MANUAL
PISTON PIN
Piston Pin Diameter
Use a micrometer to measure the piston pin outside
diameter at several points.
If the measured value is less than the specified limit, the
piston pin must be replaced.
Piston Pin Diameter mm (in)
Standard Limit
27.01 (1.0638) 26.97 (1.0626)
Piston Pin Hole mm (in)
—
Piston Pin and Piston Clearance
Use an inside dial indicator to measure the piston pin
hole (in the piston).
Standard
26.988 - 26.997 (1.0633 — 1.0637)
Piston Pin and Piston Pin Hole mm (in)
0 - 0.005 (0 - 0.0002)
If an inside dial indicator is not available, use the
following
procedure
to
check
the
piston
pin
clearance.
1. Use a piston heater to heat the piston to approxi-
mately 100°C (220°F)
2. Push strongly against the piston pin with your
thumbs.
The piston pin should move smoothly with little or
no resistance.
-72-