Piston Ring End Gap; Piston Ring Clearance - Ezgo 1600xd Repair Manual

5.10.3 PISTON RING END GAP

1. Place the piston ring to be measured on the top face
of the piston in the cylinder block and slightly push in
the piston and piston ring. (Do not put the piston ring
on the carbon layer.)
2. Measure the ring end gap with a feeler gauge.
3. If the gap exceed the allowable limit, replace the
piston ring.
Item
Factory spec.
Piston Top ring
0.15 ~ 0.30 mm
ring
0.0059 ~ 0.0118 in.
gap
2nd ring 0.30 ~ 0.45 mm
0.0118 ~ 0.0177 in.
0.25 ~ 0.35 mm
Oil ring
0.0098 ~ 0.0138 in.
4. If the gap is still over the allowable limit with even
new ring, measure the diameter of bore. (Refer to
page 3-42)
SUUV-W00 Apr. 2011
ENGINE - INSPECTION AND ADJUSTMENT

5.10.4 PISTON RING CLEARANCE

S76W276A
1.
2.
3.
4.
Allowable limit
1.25 mm
0.0492 in.
1.25 mm
0.0492 in.
clearance
1.25 mm
0.0492 in.
Clean the piston ring and piston ring grooves, and
install each ring in its groove.
Measure the clearance between the piston ring and
the ring groove with a feeler gauge.
If the clearance exceeds the allowable limit, replace
the piston ring.
If the clearance still exceeds the allowable limit
after replacing the ring with new one, replace the
piston.
Second ring Specifi ed
(compression ring) value
Piston
ring
Specifi ed
Oil ring
value
S76W277A
0.085 ~ 0.112 mm
(0.0033 ~ 0.0044 in.)
0.020 ~ 0.055 mm
(0.0008 ~ 0.0022 in.)
3
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