Valve Guide Replacement - Honda CB 600F Hornet 2007 Shop Manual

CYLINDER HEAD/VALVES
Measure and record each valve guide I.D.
SERVICE LIMITS: IN/EX: 4.04 mm (0.159 in)
Subtract each valve stem O.D. from the correspond­
ing guide I.D. to obtain the stem-to-guide clearance.
SERVICE LIMITS:
IN: 0.075 mm (0.0030 in)
EX: 0.085 mm (0.0033 in)
If the stem-to-guide clearance is out of standard,
Reface the valve
determine if a new guide with standard dimensions
seats wheneve, the
would bring the clearance within tolerance. If so,
ve/ve guides ere
replace any guides as necessary and ream to fit.
replaced /page 8-
201. If the stem-to-guide clearance exceeds the service
limit with the new guides, replace the valves and
guides.

VALVE GUIDE REPLACEMENT

Chill the replacement valve guides in the freezer
section of a refrigerator for about an hour.
use Heat the cylinder
Do not a torch
with a hot plate or oven.
to heat the cylinder
To avoid burns, wear heavy gloves when handling
head, itmaycavse
the heated cylinder head.
warping
Support the cylinder head and drive out the valve
guides from combustion chamber side of the cylin­
der head.
TOOL:
Valve guide driver
Drive in the guides to the specified depth from the
top of the cylinder head.
SPECIFIED DEPTH:
IN: 17.1 - 17.4 mm (0.67 - 0.69 in)
EX: 13.3
TOOL:
Valve guide driver
Let the cylinder head cool to room temperature.
Ream the new valve guides after installation.
Use cutting oil on
the reamer during Insert the reamer from the combustion chamber
side of the head and also always rotate the reamer
this operarion
clockwise.
TOOL:
Valve guide reamer, 4.008 mm
Clean the cylinder head thoroughly to remove any
metal particles.
Reface the valve seat (page 8-20).
8-18
head to 100 - 150 ° C (212
07GMD-KT701000
- 13.6 mm (0.52 - 0.54 in)
07GMD-KT70100
07M MH-MV90100
°
- 300 F)
BB