Conrod - HYOSUNG TE 450 Service Manual

3-31 ENGINE
▣ ▣ PISTON RING-TO-GROOVE CLEAR-
ANCE INSPECTION
Remove carbon deposit both from the piston ring and
its groove.
Fit the piston ring into the groove. With the ring com-
pressed and lifted up, measure the clearance on the
bottom side of the ring using a thickness gauge.
If any clearance reading exceeds the service limt,
replace both the piston and piston rings.
Piston ring-groove clearance
1st
2nd
Piston ring groove width
1st
2nd
Oil
Piston ring thickness
1st
2nd
Micrometer(0~25 mm) : 09900-20201
Thickness gauge : 09900-20806

CONROD

▣ ▣ CONROD SMALL END INSIDE DIAME-
TER INSPECTION
Using a dial calipers, measure the conrod small end
inside diameter both in vertical and horizontal direc-
tions.
If any of the measurements exceeds the service limit,
replace the conrod.
Standard
Conrod small
19.006~19.014 mm
end I.D.
(0.7483~0.7486 in)
Dial calipers : 09900-20605
Service limit
0.150 mm (0.006 in)
0.150 mm (0.006 in)
Standard
1.21~1.23 mm
(0.0476~0.0484 in)
1.01~1.03 mm
(0.040~0.041 in)
2.01~2.03 mm
(0.079~0.080 in)
Standard
1.170~1.190 mm
(0.0461~0.0469 in)
0.970~0.990 mm
(0.0382~0.0390 in)
Service limit
19.040 mm
(0.7496 in)