4. Maintenance & Inspection
reassembled, be
very
ca
reful
not
to
make
a
mistake
and
turn
it
in
the
wrong
direction
.
Additionally,
if
the
engine
is
being
turned
manually
,
be
carefu
l
to
turn
it
in
the
correct
direction
.
Incorrect
turning
will
twist
the
impeller
and
damage
it.
(3)
Inspection
and
Adjustment
of
Intake
/
Exhaust
Valve Clearance.
When operating
for
long periods
of
time,
the
clearance between the intake
/e
xhaust
valve and the rocker arm will change and
affect operation performance. Adjustment
Is
necessary.
Adjustment requires
specialized know-
ledge and techniques. Consult your Van-
mar
dealer
or
distributor.
4.4 EPA
Requirements
4.4.1 EPA
Certification
Plate
a)2GM20 (F) series
This engine has the
following EPA
Certification
Plate attached:
• EPA
Certification
Plate
•
Attachment
Position
for
Certification
Plate
•
2GM20 (C) (V), 2GM20F (C) (V)
series.
attached to the intake air
silencer side
of
the bonnet
(4)
Inspecting
and
Adjusting
the
Fuel
Injection
Spray
Condition
.
Adjustment is necessary
to
obtain the
optimal fu
el
injection
to
ensure the best
possible engine performance. This inspec-
tion requires
specialized knowledge and
techniques.
Consult your Yanmar dealer
or
distributor.
(5)
Adjusting
the
Remote
Control
Cable
(See
page
38, 4.3.2(3))
(6)
Inspecting
and
Adjusting
the
Fuel
Injection
Timing
Fuel injection timing mu
st
be adjusted
to
ensure optimal engine performance.
This maintenance requires specialized
knowledge.
Consult
your Yanmar dealer
or
distributor.
65
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41
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