DAELIM VJF125 Service Manual page 157

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
11-4
MICROMETER
MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER
MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER
MICROMETER MICROMETER MICROMETER MICROMETER
MICROMETER MICROMETER MICROMETER MICROMETER MICROMETER
CYLINDER GAUGE
Insert the piston ring into the inside cylinder, check the
piston ring clearance.
SERVICE LIMIT TOP/SECOND: 0.5mm
OIL RING : 1.10mm.
Push the rings into the cylinder with the top of the
piston to be sure they are squarely in the cylinder.
Measure the outer diameter of the piston at 10mm
from the bottom and 90 to the piston pin.
Replace the piston if the service limit is exceeded.
SERVICE LIMIT : 72.965 - 72.985 mm
PISTON PIN INSPECTION
Measure the piston pin hole inside diameter.
SERVICE LIMIT : 17.002 - 17.008 mm
Measure the piston pin outer diameter.
SERVICE LIMIT : 16.994 ~ 17.000 mm
Calculate the clearance between the piston and the
piston pin.
SERVICE LIMIT : 0.008 mm
Measure the inner dismeter of the connecting rod small
end.
SERVICE LIMIT : 17.010 ~ 17.028 mm
Calculate the clearance between the inner diameter of
the connecting rod small end and pisto pin.
SERVICE LIMIT : 0.028 ~ 0.066 mm