Figure 5-32. Removing the Rod Bolts and Nuts
Piston ring breakage may occur if rings are opened more than necessary
when removing. Never stretch piston rings more than necessary.
Use the piston ring remover tool to remove piston rings.
Clean piston (1), piston pin (7), and piston rings (10, 11, and 12).
Remove carbon from piston and piston components.
Carefully dean the piston ring groove after the piston rings have been removed.
Inspect piston, piston skirt, piston grooves, and piston pin for excessive wear, discoloration, and dam-
age. Replace damaged piston.
Before reading any measurements all carbon buildup must
be removed. Carbon buildup will cause unreliable measure-
Check that OD of piston is greater than 2.665 inches (67.68 mm). Measure piston OD 90 degrees from
the piston pin hole and about 0.50 inch (12 mm) from the bottom of piston. Replace piston if worn be-
yond the wear limit.
Check that the ID of the piston pin hole is less than 0.751 inch (19.07 mm). Replace piston if ID ex-
ceeds wear limit.