Technical data
IGNITION, STARTING, CHARGING
SYdTE’h
CHECKING
hND
ADbUSTING
BHE’lGN,lqlO~N
‘TIM’ING
FARNING:
~
A
very
accurate
check of the timing at
idle
speed,
has
!to
be performed
very
carefully,
Sin&e
incorrect timing at idle
greatly affects exhaust
emission
level
which would not remain within the
specified
,values.
For
engines
with carburetors,
the
pro-
cedure
described
in the paragraph
“Cheqk
of FiXed and Maximum Advan-
ce” in the ~
manual
are to be
fol-
slowed
tak/ng
i$o
account
the new
~technical
yata
given in the table.
For the
electrroqic
injection 1.7 engine
‘with
catalytic
convertor, the following
,procedure
‘is’to
be
fo!lowed:
!’
1. Connect
tbe
supply terminal of
stro-
Iboscopic
guh
th
battery and the
pick-
m,up
to high Qoltage
table
of
cylinder
i’No.
1:
‘2. Connect an electronic rev-counter
,,to
the
enqin~e
insertipg
the terminals
‘On
the
coi1
pow&r supply and the
pick-
“UP
on the high
tension
lead
of the
coil.
,;
~3.
Removd the plastic plug on engine
~
r,ear
caver.
~ 4. Start the engine, warm it up to, ope-
rating
temperature.
Oil
Temperature:
175,thru
80%
5. Disconnect the v,acuum
advance
ho- ~
,m
7. ‘Reconnect’ the vacuum
advahce
ho-
se from distributor; with the strobo- se to the
distributor.
scopie
gun cgeck that at idling rpm:
950 + 100
_
5.
r4.m.
the marker on rear
cqver
is aligned
with notch
I
on flywheel of the engine.
.
.
T T.D.C. of cylindèr
No.
1.
I
Ignition
advance
at idle engine speed.
II
Advance
at
5250 rpm.
Advance
(With vacuum correcting
ho-
se disconnected)
8O
f
before T.D.C.
8. If specified alignment
does
npt,oc-
cur, proceed to adjust timing
opera-
ting as
followS:
(1) Unscrew the securing nut on
th6
di-
stributor.
(2)
Rotate
the distributor body coun-
tercklockwise to
advance,
or
clockwi-
se to retard the ignition setting.
(3) Retighten the
distr/butor
securing
nut.
(4) Check that timing is within speci-
fied values.
8. Using the
$roboscopic
gub, check
also that at engine rpm of
5250 r.p.m.
the marker of engine rear
caver
is
ali-
ghed with notch II on engine flywheel.
9. Remount the plastic
plug.on
engine
rear
caver.
For the
electronic injection 1.7 engine
~
without
cataiytic
convertor,
the
follo-
wing
procedyre
is to be followed:
1. Disconnect the minimum and
maxj-
mum accelerator throttle opening
switch
connecter
and short-circuit
the
three wiring
side
plus.
2. Disconnect vacuum pressure
hose
fr@m
ignition;
distributor.
,,
3.~
Check wit’h stroboscopic gun that
the
advance,value
is 8”. If this is not
the case,
rotate
the distributor.
NOTE:
Connecting
to,ground
those
plus relative to
the minimum and maximum accelerator
throttle opening switch, the ou controls the
coi1
power unit SO as to
dotaln
a fixed
igni-
tion
advance
value
at
8”
independently
at
engine
r.p.m.
Engines
1200
-
305.85
1350-305.87
1350-305.86
1500
-
305.88
1700-305.58 A 1700-305.58
8"+1"
8"kl's
80+1’3
8’
(2)
Fixed
advsnce
‘i,
~,,
Maximum adiance
at
900rpm
340
(3)
at
5500 rpm
at
900 rpm
at 900 thru 1050
rpm’
340
3z.
at
4500 rpm
at
5250 rpm
-
-
(1) The timlng values
are
to be measured wlth the vacuum
advance
hose
disconnected
(2) The value is measured indipendently of the engine speed
,(A) For couniries where antipollution regulations are in force
(3) For an:addltional check, check for 30”
at
4500
r.p.m.
‘,
October
,1988
~
05-8
PA333500883301