2-6
PERIODIC
MAINTENANCE
• Remove the valve timing inspection plug
G)
and generator
cover cap (l).
NOTE:
•
The piston must
be
at top
dead
center (TDC) on the compres-
sion
stroke in order to check
or
adjust the tappet clearance.
• The tappet clearance should only be checked when the engine
js
cold.
• Rotate the crankshaft with a box wrench to set the piston at
TOe
on the compression stroke. (Rotate the crankshaft until
the
"T" line
on
the generator rotor is aligned with the triangle
mark on the generator cover.)
• Insert a thickness gauge between the tappet and the cam. If
the clearance is out of specification, adjust
it
to the specifica-
tion
as
follows.
c!liI
09900-20803:
Thickness
gauge
~
Tappet clearance (when cold)
NOTE:
IN
: 0.10 - 0.
20
mm (0.0039 - 0.0079 In)
EX: 0.20 - 0.30
mm
(0.
0079-
0.0118 in)
The
cam must be at position ®
in
order
to
check and adjust
valve clearance. Clearance readings should not be taken with
the
cam
in
any other position than this position.
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