Mitsubishi Eclipse Workshop Manual page 29

ENGINE -
Engine
Adjustment
11-7
o
o
Caution
l. Keep away
from the
spark-plug hote when cronkino.
,. 1*:T:-*^:::i::":::s
with water,
;ii;ü;iä:
that
has come
from
cracks inside
th"
;ylilj;;"d;ä
materiats
wilt
become lrgated and
wi[
gir* ;i;tää
(6)
(71
the spark plug hole, which is
dangerous.
set
compression gauge
to
one of the spark plug
holes.
Crank
the
engine
with the throttle
valve fuily äpen-änO
measure the compression pressure.
Sandard
value:
1,55O kpa (15.5 kg./cmz,22O psil [25O-rtO0
r/min.t
Limh:
1,190
kpa
(11.9 kglcmz, 169 psil t25O-4(X)
r/min.l
Measure
the compression pressure
for
all the
cylinders,
and check that the pressure differences of the cylinders are
below the limit.
Umit: max. lOO kPa (1.O
kglcm2, 14
psi!
(9) lf there is a
cylinder
with
compression
or a
compression
difference that is outside the limit, pour a small amount of
engine
oil
through the spark plug hole, and
repeat the
'
operations
in
steps (7) and
(8).
O lf
the
compression increases after
oil is
added.
the
cause
of the malfunction is
a
worn or damaged piston
ring and,/oi cylinder inner
surface.
€)
lf the compression does not
rise after oil is added, the
cause is a burnt or defective valve seat, or pressure
is
leaking from the
gasket.
(10)Connect
the crank angle sensor
connector.
(11)lnstall the spark plugs and spark plug
cables.
(12)Use the multi-use tester to
erase the self-diagnosis codes.
NOTE
This
will
erase
the problem
code resulting from the crank
angle sensor connector being disconnected.
MANIFOLD VACUUM INSPECTION
(8)
o
O
Elrtw^x
O
o
(1)
Perform inspection and adjustment with the vehicle in the
following condition.
.
Engine coolant temperature:
80-
95"C
(176-
205.F)
o
Lamps. electric cooling fan and all accessories:
OFF
o
Transmission: Neutral
.
Steering wheel: Straight forward position
(2)
Check
that
idle speed is within the standard
value.
Standard value: 85O
t
1(X) ry'min.
.i
(3)
Disconnect
the
PCV hose
from the
PCV valve, and set up
the vacuum
gauge.
(4)
Check
the negative pressure during idling.
Sandard
value:
-Approx.62
kpa
(465 mmHg, 18.3
in.Hgl
(5) lf
not
within specification.
refer to following chart for cause
and
repair.
O
llltrubirhi
Motors Corporation
o-Vacuum
gauge
ry\
4pr.1991
PWUE9o'0