DAELIM S4 50cc Service Manual page 108

CYLINDER / PISTON
PISTON RING PISTON RING PISTON RING
PISTON RING PISTON RING PISTON RING PISTON RING PISTON RING PISTON RING
PISTON RING PISTON RING PISTON RING PISTON RING PISTON RING PISTON RING
PISTON RING PISTON RING PISTON RING PISTON RING
PISTON RING PISTON RING PISTON RING
90° 90° 90° 90° 90°
90° 90° 90° 90°
90° 90° 90° 90° 90° 90°
90° 90° 90° 90° 90° 90°
90°
● Inset the piston ring into the inside of cylinder, check
FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE
FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE
FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE
FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE FEELER GAUGE
NOTE
•Inset the piston ring in parallel by the head of
● Measure and record the piston outer 90° to the piston
MICROMETER
MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER
MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER
MICROMETER MICROMETER MICROMETER MICROMETER
MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER
● Measure the piston pin hole inner diameter.
● Measure the piston pin outer diameter.
● Calculate the clearance between the piston and piston
● Replace with the set parts if worn or damaged.
● Measure the inner diameter of connecting rod small
● Calculate the connecting rod small end top-to-piston
the clearance of piston ring.
piston.
SERVICE LIMIT: TOP/SECOND: 0.40MM
OIL RING (SIDE RAIL): 0.8 MM
TOOL: FEELER GAUGE
pin bore and the point specified(10 mm), near the
bottom of the piston skirt.
SERVICE LIMIT: 38.92 MM
SERVICE LIMIT: 13.04 MM
SERVICE LIMIT: 12.98 MM
pin.
SERVICE LIMIT: 0.04 MM
end.
SERVICE LIMIT: 13.05 MM
pin clearance.
SERVICE LIMIT: 0.06MM