ENGINE TOP END
3-5-33
If any of the measurements is less than the service limit
on either of the rings, replace all the rings.
CAUTION
When using new rings in a used piston, check for
uneven groove wear. The rings should fit perfectly
parallel to the groove sides. If not, replace the piston.
Piston Ring End Gap
◆
Place the piston ring
【
A
】
inside the cylinder, using
the piston to locate the ring squarely in place. Set it
close to the bottom of the cylinder, where cylinder
wear is low.
◆
Measure the gap [B] between the ends of the ring
with a thickness gauge.
Piston Ring End Gap
Standard Service Limit
Top:
0.20 ~ 0.35 mm
(0.0079" ~ 0.0138")
0.5mm
(0.0197")
Second:
0.35 ~ 0.55 mm
(0.0138" ~ 0.0217")
0.7mm
(0.0276")
Oil:
0.20 ~ 0.70 mm
(0.0079" ~ 0.0276")
0.9mm
(0.0354")
If the end gap of either ring is greater than the service
limit, replace all the rings.
B
A
To Next Page
Loading...
