5-58
POWR
E
CYLINDER BODY ASSEMBLY
CHECKING THE PISTON PINS AND
SMALL-END BEARINGS
5
1. Check:
• Piston pin
• Small-end bearing
Heat discoloration
→
Replace.
Damage/scratches
→
Replace.
2. Measure:
• Piston pin diameter
(with a micrometer)
Out of specification
→
Replace.
Piston pin diameter
23.065 - 23.070 mm
(0.9081 - 0.9083 in)
5460
3. Measure:
• Piston pin boss diameter
(with a micrometer)
Out of specification
→
Replace.
Piston pin boss diameter
23.074 - 23.085 mm
(0.9084 - 0.9089 in)
5470
CHECKING THE PISTON RINGS
5
NOTE:
• Before checking the piston rings, be sure
to check the cylinder body.
• Piston rings should always be replaced as
a set (per piston).