Cylinder Block And Piston; Cylinder Block Removal; Cylinder Block Inspection - Segway VILLIAN SSV Series Service Manual

C C
A A
CYLINDER HEAD, CYLINDER, PISTON CYLINDER HEAD, CYLINDER, PISTON
A A
B B

Cylinder block and piston

Cylinder block removal

◆ Remove the cylinder head gasket 【A】.
◆ Remove the two M6 connecting bolts 【B】.
◆ Disassemble the crankshaft (see the chapter of
crankshaft connecting rod piston assembly).
◆ Take out the cylinder block and piston as a whole
from the crankcase, and remove the cylinder block
gasket 【C】.
◆ Remove the piston and connecting rod assembly
from the cylinder block.
TIPS
If the piston will continue to be used, please make
a mark according to the installation position during
disassembly, so that the same cylinder position can be
installed in the next assembly.

Cylinder block inspection

◆ Keep the top surface of the cylinder block clean,
place a ruler 【A】 on the top surface of the cylinder
block, and measure the distance between the ruler
【A】 and different positions of the cylinder block
with a feeler gauge. Cylinder head deformation limit:
0.05 mm (0.002"). If the cylinder head deformation
exceeds the limit, replace the cylinder block.
◆ Check the cylinder bore for wear, scratches or
damage.
◆ Measure the inner diameter of the cylinder hole
according to the three heights shown in the figure
(【B】 is 15mm from the top surface, 【C】 is in
the middle, and 【D】 is 15mm from the bottom),
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