If out of specification, rebore or replace the
cylinder and piston (Replace in a set)
.Measure the diameter “P”of piston lower part
with micrometer, is the measuring position
is 4mm away from piston bottom(0.16 in)
If out of specification. replace the piston and
piston ring as a set at the same time.
.Calculate the mating cylinder clearance with
the following formula
.If out of specification, rebore or replace the
cylinder, and replace the piston and piston ring
as a set at the same time
15.Piston ring and piston pin
Piston ring
1)Measure
.Clearance between piston ring and ring groove
.Use feeler gauge ¢Ù
If out of specification, replace piston and a set
of ring
First clean the carbon deposits inside the pis-
ton ring and ring groove, followed by measur-
ing the clearance between piston ring and ring
groove.
Caution
Piston lower part diameter “P”
Standard 62.94~62.96mm
Mating cylinder clearance= “C”- “P”
Inner diameter of cylinder“C”
Piston lower part diameter “P”
Mating cylinder clearance: 0.035~0.06mm
(0.0016~0.0024 in)
Limit:
0.15mm(0.06 in)
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