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POWR
PISTONS
4. Calculate:
Piston-to-cylinder clearance
Out of specification → Replace the
piston and piston rings as a set.
PISTON
CLEARANCE
Piston-to-cylinder clearance:
0.100 ~ 0.105 mm
(0.0039 ~ 0.0041 in)
Piston ring inspection
1. Measure:
Side clearance
(with a thickness gauge 1)
Out of specification → Replace the
piston and piston rings as a set.
Side clearance:
0.02 ~ 0.07 mm (0.001 ~ 0.003 in)
2. Measure:
End gap
(with a thickness gauge 1)
Out of specification → Replace the
piston rings as a set.
End gap:
0.20 ~ 0.40 mm (0.008 ~ 0.016 in)
NOTE:
Push the piston ring into the cylinder with
the piston crown.
5-18
CYLINDER
PISTON
=
–
BORE
DIAMETER
E
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