Replacement Of Guides To Valve - Honda 2010 CBX 250 Workshop Manual

CYLINDER HEAD/VALVES
Use the reamer of guides to valve to eliminate potential
deposits of carbon, before measuring the guides. Insert the
reamer in the cylinder head on the side of the camshafts. Turn the
reamer always clockwise.
Special tool:
Reamer of guides to valve, 5,0 mm
Measure and enter the D. I. of each guide to valve.
Service Limit ADM/ESC
Avoiding external diameter of each stem valve in the inner
diameter of the guide corresponding to obtain the slack
between the stem and the guide.
ADM
Límite de
Servicio
ESC
If the slack is incorrect, check to see if a new guide with
dimension Value can reduce the slack to the limit of service
specified. In this case, replace the guides as required, and
escárielas so that fit perfectly.
NOTE
Inspect and rectify the valve seats always to install new
guides (page 7-16).
If you with a new guide the slack still exceeds the limit of
service, replace also the valve.

REPLACEMENT OF GUIDES TO valve

Cool guides to valve in a freezer for about an hour.
d
To manipulate the cylinder head hot, use gloves with heat
insulator to avoid burns.
Hot the cylinder head at a temperature of 130 140°C, using a hot iron
or a furnace. Not hot the cylinder head to more than 150oC. To
ensure that the cylinder head is heated, use a rod indicator of
temperature available in the trade material from welding.
7-12
07984–MA60001
5,03 mm
0,12 mm
0,14 mm
REAMER OF GUIDES TO valve
REAMER OF GUIDES TO valve
CBX250