Honda EU3000i Handi, Manual

Page: 163 / 194

CYLINDER HEAD
14-8
VALVE GUIDE REPLACEMENT
Chill the replacement valve guides in the freezer
section of a refrigerator for about an hour.
Use a hot plate or oven to heat the cylinder head evenly
to 150°C (300°F).
• Do not use a torch to heat the cylinder head;
warpage of the cylinder head may result.
• Do not get the cylinder head hotter than 150°C
(300°F); excessive heat may loosen the valve seat.
Remove the heated cylinder head from hot plate and
support it with wooden blocks. Drive the valve guides
(1) out of the cylinder head from the combustion
chamber side.
When driving the valve guides out, be careful not to
damage the cylinder head.
Remove the new valve guides from the refrigerator one
at a time as needed.
Install the new valve guides from the valve spring side
of the cylinder head.
Exhaust valve guide (2):
Drive the exhaust valve guide until the valve guide clip
(3) is fully seated as shown.
Intake valve guide (4):
Drive the intake valve guide to the specified height
(measured from the top of the valve guide to the
cylinder head as shown).
After installing the valve guide, check the guide for
damage.
Replace the valve guide if damaged.
Let the cylinder head cool to room temperature.
Perform the valve guide reaming (page 14-9).
To avoid burns, use heavy gloves when handling
the heated cylinder head.
TOOL:
Valve guide driver, 5.0×9.4 (2)
07942-8920000
(2)
(1)
COMBUSTION
CHAMBER SIDE:
TOOL:
Valve guide driver, 5.0×9.4 (1)
07942-8920000
INTAKE VALVE INSTALLATION HEIGHT:
4.8 – 5.2 mm (0.19 – 0.20 in)
(1)
4.8 – 5.2 mm
(0.19 – 0.20 in)
VALVE SPRING SIDE:
(3)
(2)
(4)