Honda GOLDWING GL1800, Service Manual

Page: 106 / 757

MAINTENANCE
3-9
VALVE CLEARANCE
INSPECTION
• Inspect and adjust the valve clearance while the
engine is cold (below 35
°
C, 95
°
F).
Remove the cylinder head side covers (page 3-7).
Remove the bolt and wire clamp, spark plug wires
from the clip, and the three rubber plugs. Then
remove the six socket bolts (left cylinder head
cover), five socket bolts (right cylinder head cover),
and cylinder head cover.
Remove the timing hole cap.
Loosen the cam chain tensioners (page 8-12).
Rotate the crankshaft counterclockwise and align
the T1.2 mark on the ignition pulse generator rotor
with the index mark in the front crankcase cover.
Make sure the No. 1 cylinder cam lobes are facing
out. If they are facing in, rotate the crankshaft coun-
terclockwise 360
°
(one full turn) and align the T1.2
mark with the index mark.
Measure the No. 1 cylinder valve clearance by
inserting a feeler gauge between the valve lifter
and cam lobe.
Failure to loosen
the cam chain ten-
sioners will result in
inaccurate valve
clearance measure-
ment, due to the
force of the cam
chain on the cam-
shaft.
T1.2 MARK
INDEX MARK
T1.2 MARK
INDEX MARK
VALVE CLEARANCES:
IN: 0.15
±
0.03 mm (0.006
±
0.001 in)
EX: 0.22
±
0.03 mm (0.009
±
0.001 in)
FEELER GAUGE