Publicité
CYLINDER AND PISTON
3. Measure:
Ring end gap
Out of specification → Replace.
NOTE:
You cannot measure the end gap on the
expander spacer of the oil control ring. If the oil
control ring rails show excessive gap, replace
all three rings.
WR426F:
Top
ring
WR400F:
WR426F:
2nd
ring
WR400F:
Oil
0.20 ~ 0.50 mm
ring
(0.01 ~ 0.02 in)
Piston pin
1. Inspect:
Piston pin
Blue discoloration/grooves →
Replace, then inspect the lubrication
system.
4 - 45
ENG
End gap
Standard
0.20 ~ 0.30 mm
(0.008 ~ 0.012 in)
0.20 ~ 0.35 mm
(0.008 ~ 0.014 in)
0.35 ~ 0.50 mm
(0.014 ~ 0.020 in)
0.40 ~ 0.55 mm
(0.016 ~ 0.022 in)
Limit
WR426F:
0.55 mm
(0.022 in)
WR400F:
0.60 mm
(0.024 in)
WR426F:
0.85 mm
(0.033 in)
WR400F:
0.90 mm
(0.035 in)
—
Publicité
