Geely EC718 2009 Workshop Manual page 485

Engine
Engine Front
Second Ring
Engine Mechanical System JL4G18-D
10. Check whether the engine block cylinder bore is worn,
11. Check whether the engine block cylinder bore is polished,
12. With a ruler and gap regulator, check the engine block top
FE02-0235b
13. Select a new set of piston rings, use a gap regulator to
14. Check the connecting rod bearings gap.
FE02-0236b
15. check the connecting rod bearing clearance.
Installation Procedure:
1.
First Ring
Upper Ring
2.
Lower Ring
FE02-0237b
runout and taper.
if necessary, slightly polish the cylinder bore.
surface flatness.
Standard Value: 0.05 mm (Metric) 0.002 in (US English)
measure piston ring end gap.
Oil Ring End Gap:
0.20-0.70 mm (Metric) 0.0079-0.0276 in (US English)
Second Compression Ring End Gap:
0.40-0.55 mm (Metric) 0.0157-0.0217 in (US English)
First Compression Ring End Gap:
0.25-0.35 mm (Metric) 0.0098-0.0138 in (US English)
Standard Value:
0.020-0.044 mm (Metric) 0.0007-0.0017 in (US English)
Standard Value:
0.16-0.342 mm (Metric) 0.006-0.0135 in (US English)
install piston rings.
Note
Note when installing the piston rings do not expand
too much, otherwise it will break piston rings.
Install the piston rings to the location as shown in the
graphic.
Note
Oil ring opening can not be parallel to the piston pin
axis.
EC718/EC718RV EC715/EC715RV 10/2009
2-403