4-23
ENG
CYLINDER HEAD, CYLINDER AND PISTON
EC474502
Piston ring
1. Install:
9
Piston ring
Into the cylinder.
Push the ring with the piston crown.
2. Measure:
9
End gap
Use a thickness gauge
1
.
Out of limit
→
Replace.
3. Measure:
9
Side clearance
Use a thickness gauge
1
.
Out of limit
→
Replace piston and/or ring.
NOTE:
Check at several points.
EC474602
Piston clearance
1. Calculate:
9
Piston clearance
Out of limit
→
Replace piston, and piston
ring and/or cylinder.
Refer to “Cylinder” and “Piston”.
Ring end gap (installed):
Standard
<Limit>
0.5~0.7 mm
1.2mm
(0.020~0.028 in)
(0.047 in)
Side clearance:
Standard
<Limit>
0.035~0.070 mm
0.1mm
(0.0014~0.0028 in)
(0.004 in)
PISTON
CLEARANCE
CYLINDER
BORE
PISTON
DIAMETER
=
–
1C3-9-31-4B 4/28/05 2:38 PM Page 12
Содержание YZ125(V)
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