Rato R2000IS, Руководство по обслуживанию

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APPENDIX
31
Tool
：
reamer
b) Thoroughly remove dirt and debris
on the cylinder head.
c) Check valve guide hole, the hole
should be located in the central and
should be unobstructed. If not, the
valve guide pipe may have been bent.
With this bad situation, you should use
a new one.
d) Check the clearance between the catheter and the valve stem.
e) Clearance between the valve stem and valve guide: the valve guide inner diameter minus
the valve guide stem.
f) If the clearance between the valve stem and catheter values is out of maintenance limit,
you should decide to replace a new catheter to clearance within the limit of maintenance, if
so, replace the valve guide and stick ground valve guide. When replace the valve guide, you
need rebuild the valve seat.
④
Valve seat
：
a
）
Completely clear the carbon
deposition which on the combustion
chamber and the valve seat, then
smearing a thin layer of red lead powder,
or other different wipe easily adhesion of the coating color.
b
）
Insert valve and pushing valve a few times, but make sure do not rotate the valve on the
valve seat. Developed coating valve seat, it shows that the closely with the valve; On the
other hand, if it not,it suggests that different heart valve and valve seat.
surface
Installation height:1mm
Check
ring
puller