Linhai ARCHON 400 Service Manual page 58

CHAPTER 3 ENGINE
PISTON AND PISTON RINGS REMOVAL
1. Remove:
Piston pin circlip 
Piston pin 
Piston 
NOTE:
Before removing the piston pin circlip, cover the
crankcase opening with a clean tow el or rag to
prevent the circlip from falling into the crankcase
cavity.
2. Remove:
Top ring
2nd ring
Oil ring
NOTE:
When removing the piston ring, open the end
gap of the ring by fingers, and push up the other
side of the ring.
CYLINDER INSPECTION
1. Measure:
Cylinder bore
Out of specification → Rebore or replace.
NOTE:
Measure the cylinder bore with a cylinder bore
gauge.
Measure the cylinder bore in parallel to and a
right angle to the crankshaft. Then, find the
average of the measurements.
Cylinder bore:
70.000- 70.014mm
< Limit:70.025mm>
< Difference limit between A,B and
C :0.03m m >
2. Measure:
Warpage
Out of specification → Replace.
Cylinder warpage limit:
0.03mm
BUCK 450 SERVICE MANUAL 20.0
CHAPTER 3 ENGINE PAGE. 3- 33