5-31
POWR
E
PISTONS
2. Measure:
●
End gap
(with a thickness gauge
1
)
Out of specification
→
Replace the
piston rings as a set.
NOTE:
Push the piston ring into the cylinder with
the piston crown.
End gap:
0.45 ~ 0.60 mm (0.018 ~ 0.024 in)
Piston pin and bearing inspection
1. Inspect:
●
Piston pins
●
Bearings
Signs of heat discoloration
→
Replace.
2. Measure:
●
Piston pin outside diameter
(with a micrometer
1
)
Out of specification
→
Replace.
Piston pin outside diameter:
Standard
21.995 ~ 22.000 mm
(0.8659 ~ 0.8661 in)
Limit
21.990 mm (0.8657 in)
3. Check:
●
Piston-pin-to-piston free play
(with the piston pin in the piston as
shown)
Free play
→
Replace the piston pin,
piston or both.
