ENGINE
75
2. Measurement
Push the piston ring into the cylinder (the
position of 5 mm away from the top)
Piston ring
1. Measurement
Side clearance
Out of specification
Replace piston-ring groove
and piston ring completely
During measuring side clearance, carbon deposit on
the piston-ring groove and the every ring should be
eliminated.
Note
Note
3. Measurement
End gap
Note
End gap:
1 ring: 0.15
0.30mm
Used limit:0.4mm
2 ring: 0.30
0.45mm
Used limit:0.55mm
Oil ring: 0.2
0.7mm
Use the piston top to push the piston ring to make the
ring verticality to cylinder bore.
The end gap of the oil ring can not be measured at the
expander-ring septum of the oil ring, and only mea-
sure the end gap between upper and below barriers. If
the gap is too large, then there are 3 rings must all be
replaced.
Side clearance:
1 ring:0.03
0.07mm
Used limit:0.12mm
2 ring:0.02
0.06mm
Used limit:0.12mm
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