1981 Citroen CX check engine

Downloaded from www.Manualslib.com manuals search engine Op. MA. 420.0 1
CHECKING THE REAR AXLE USING OPTICAL EQUIPMENT
NOTE For detailed instructions on the use of optical equipment see front axle checking operation (Op. MA. 410-O)
1. Checking’axle alignment :
L
(11 With the vehicle on the turntables (engine running and manual height control in normnl runniup position)
& ( turntables marks at zero 1, place a graduated plate ( 1 i on the vertical centreline of each front wheel.
-6
: b) Fit the projector unit on ca<-h rcnl uhccl.
I”
c i Swivel the projectors towards the graduated plate. Focus luminous index on graduations.
2 d ) Push the graduated plates against their stops ( 2 ).
The alignment of the
rear axle is correct when there is no difference in the reading between left-hcnd
52 and right-hand sides.
;
i 2. Checking wheel alignment :
n
2
“7
,Ploce the two aliqnmeht adjusting rods (3 ) on either side of the rear axle and proceed as for front wheels.
Alignment reading : Toe-in of rear wheels must be 1 to4mm

Downloaded from www.Manualslib.com manuals search engine 2 OPERATION No MA. 420.0 : (:h ’ k’ j I/ cc ,,I:, > BEM MULLER
665 Junior
Proceed as for front wheels
at front : 165 mm
He;@/ ,),~ns,,r‘,,,,~,,,,s lo be srn,p,,lmosly ‘rcs,wrlcd Ior /his rhrck
at rem : 215 mm ~Saloo,rsJ
a : 228
mm f Estatus J V&e of the camber angle : On
-024’

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 430-O : Checking md ndjusting the suspcusion and its control. 06. MA. 430-O i
ADJUSTING THE HEIGHTS
AT FRONT : Between under-face of point (c o ))
subfrome ond point of contoct of wheels with
ground.
AT REAR : Between under-face of point <( b a)
subfrome ond point of contact of wheels with
ground.
1. Check tyre pressures.
2. Remove corrector protectors and make sure the
manual control rods are not exerting pressure on
levers ( 1) and ( 2).
3. Slightly loosen automatic control clump and
adjust to obtain :
3
Front height = 165 ? 8 mm
Rear height = 215 ? 8 mm ( Saloons )
228 t 8 mm ( Estates )
Tightening torque of clomps = 1.5 doNm (11 ft.lb )

Downloaded from www.Manualslib.com manuals search engine 2 OPERATION No MA. 430-O : ~hwki~zg nrtd nrijustittg the suspwrsiott ntd its cotttrol
4. Adjusting the height control :
Slacken nuts ( 1) and (4 )
Set control levers ( 2 ) and ( 3 ) to obtain :
Jl = J2
J3 = J4
Tighten nuts ( 1 ) and (4).
5. Check the heights :
Ertgittv icilittg. tttnttt~nl cotttrol Ic,t’c,r itt ttotvttO/
rtrrtttiug positiott.
Check that ball join!s of front and rear corrqctors
are not jammed in their forks.
At front :
a) Raise the vehicle by hand.
b Release when weight becomes too great to
support.
Vehicle wi1.l drop, then rise again and
stabilize itself. Note front height.
Push vehicle down by hand
Release when resistance becomes too great.
Vehicle will rise again then drop and stabi-
lize itself.
Note front height again.
c) Take the average of these two measurements
which should be between
157 and 173 mm inclusive
At rear :
Proceed in the same manner.
Average of height readings should be between
210 and 220 mm inclusive ( Saloons )
220 and 236 mm inclusive ( Estates )
7. Fit front and rear protectors.

Downloaded from www.Manualslib.com manuals search engine II. SPECIAL FEATURES
- Clearance between pedal and brake-valve
” ..: 0.05 to 3 mm
_ Stoplamp switch ,: Inal/) VII/S/ lislli c/c .soo,~ 05 [I(‘~~II /~//c-/~c,s IJTO~(~ /,fl// (J Main braking system :
- Diameter of disc .......................................................................... 260 mm
- Thickness of disc .........................................................................
20 mm
s Minimum thickness after wear .................................................... 18 mm
_ Max run-out of disc ...................................................................
0 2 mm
- Diameter of operatinq pistons ....................................................
42 mm
- Area of one pad ............................................................................
55 cm2 (8 52sq.in)
- Thickness of lining on the pad .,,_.,..,_.__.._.._,....,.......................... 115mm
233 5 mm 235 mm
9 mm 18 mm
7 mm 16 mm
0.2 mm 0 2 mm
30 mm 40 mm
24 cm2 (3.72 (36cm2 (5.5
sq.in) sq.in
12 mm
12 mm
- Checking the flatness of a disc take a reading in 8 different points the results should be the same to
within : 0.02 mm
TYPE OF BRAKE PAD LINING (Front linings incorporating warning-lamps leads
j
AUTHORISED REPAIR FITTINGS
VEHICLE
All Snlow L’c~l,ir-ll 5
CX 2000
( MA series MB )
CX 2200 ( MA series MC )
CX 2400 ( MA series MJ )
CX Prestiqe (MA series MK )
CX 2400 GTI ( MA series ME )
CX 2000 ( MA series MD )
CX 2400 ( MA series MF )
8
1
FRONT REAR
TEXTAR- T .= 254 FERODO 748
or
FERODO e 748
I FERODO 748
TEXTAR - T - 254 1 TEXTAR -T2-54
or
TEXTAR - T 254
I FERODO - 748
or
FERODO - 748
I FERODO r 748

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 451-O : Uwckirrg the hrflkv rov,~o,rrnts Op. MA. 451.0 1
CHECKING THE RUN-OUT OF THE BRAKE DISC -
FRONT BRAKES REAR BRAKES 2
E Equipment required :
,,, - 1 universal dial gauge bracket ( 2041-T or 5602-T )
1 dial gauge 2437-T
3 screws, hex. head
6 = 12 mm, thread pitch 1.25, length = 30 mm )
( Ex Crown wheel securing screw on (< D a)
vehicles ). Method :
1. Raise vehicle and assemble equipment as shown
above.
Tighten the three screws (
- ) to opproximo
My 70 mN i 7 m.kq ) ( 50 l/2 ft.lh ).
2. .Sl,l did g”“g” rod RS pwp<‘il~cl,l171 ns p”ssibl<~
10 &SC iorr. The run-out thus registered must not exceed 0.2 mm.
If this condition cannot be satisfied the disc must
be chanqed.

Downloaded from www.Manualslib.com manuals search engine Op. MA. 453-O 1
I. BLEEDING THE BRAKES ON SALOON AND ESTATE VEHICLES ( 9/1976- )
A. FRONT BRAKE BLEEDING
NOTE : To avoid emulsifying the fluid
and the
consequent formation of air-pocket in the system,
the circuit should not be under pressure when this
operation is carried out.
1. Release pressure in circuits :
a) Raise front of vehicle (wheels free 1.
b) Slacken pressure regulator bleed screw ( 1 ).
Remove front wheels.
c ) Place CI transparent tube over each bleed
screw (2 ) with its oiher end in CI clean
container.
d) Hold r/on,,,
brake pdnl ar,d loose,, blvcrl
*cr(Iws (2). 2. Bleeding :
(I 1 Start engin’e (idling speed 1 and maintain brake
pedal fully depressed.
b) Tighten pressure regulator bleed screw and
allow fluid to flow until bleed tubes ore
free of air bubbles.
Then tighten bleed screws (2 ).
c) Release broke pedal and remove bleed tubes.
Check the bleed screws for .leaks by depres-
sing brake pedal to fullest extent.
Stop engine.
Fit rubber protectors over the bleed screws.
d 1 Replace front wheels and lower vehicle to
the ground.
B. REAR BRAKE BLEEDING
3. Release pressure in circuits
a) Set monuol height control to lou posi/iou.
b 1 Slacken pressure regulator bleed screw ( 1 )
c) Wait until vehicle has reoched.its lowest
point.
Raise rear of vehicles (wheels free )
Remove lower rear wheel panels and rear
wheels.
d 1 Set manual height control to
hifih positior,
e ) Place Q transparent tube over each bleed
screw with its other end in (I cl&n container.
f ) Open bleed screws (3 ) and depress broke
pedal to fullest extent. 4. Bleeding :
(I) Tighten regulator bleed screw ( 1 1.
Slur/ w?@nr, holding broke pedal depressed.
b) Allow fluid to flow until no bubbles appear
in tube.
Then tighten the bleed screws.
Release brake pedal.
c ) Remove tubes. Check the bleed screws for
leaks by depressing the bloke pedal to
fullest extent. I
Fit rubber protectors.
Stop engine.
5. Refit rear wheels and detachable panels.
Lower vehicle to ground.

Downloaded from www.Manualslib.com manuals search engine 2 OPERATION N” MA. 453-O : (./ ‘cc ,,,g md ndjaslisg I/w hsdrmlir hrnkr rev/m/
k.
II. BLEEDING THE BRAKES ON ESTA ,TE VEHICLES (- 0 ,970 )
A. BLEEDING THE FRONT BRAKES AND THE AIR
CHAMBER ( 1)
NOTE
This bleeding must be carried out with no
pressure in the system
in order to avoid any emul-
sifying of the liquid. and consequently the possible
formation of air bubbles in the system.
1. Release pressure in the system :
a 1 Raise front of vehicle ( wheels free ).
b ) Slacken release screw (3 ) on $ressure requlo-
tor. Remove the front wheels.
c 1 Place on each bleed screw ( 4 1 a transparent
tube wi!h its other end in a clean container
d ) ,Mnir,lnh, brnk L p&d /u//y d<~pwss,~d. and
slacken bleed screws (4 ).
e) Remove air chamber ( 1). Place a transparent
tube on the end of pipe (2 ).
2.
Bleed the br.kes :
a) S/or/ ~v,gir,c,. C id/ivg spevd I md vrnialni,r
hrnk L firdnl. tullr d,~pwss<~d
b) Tighten release screw on pressure regulator.
and let fluid flow until there are no more air
bubbles in the bleed tubes.
Then tighten the bleed screws.
c) Release broke pedo1, and remove bleed tubes.
d) I:;/ nir rhnmhrr ( I ) nltcr hnr~htg /dorm i/
Ibrouph I, i/h Nmp IPSS ?,I nir.
e ) Check bleed screws and air chamber ( 1) are
properly sealed
by fully depressing brake pedal.
Stop engine. Place rubber protective caps over
bleed screws.
f 1 Fit front wheels and lower vehicle to the ground
B. BLEEDING THE REAR BRAKES
3.
Bleed the rear brakes :
a 1 Raise rear of vehicle ( wheels free ).
Remove removable panels and rear wheels.
b) Place manual height control lever in c high
posi~im H ( Release screw on pressure regula-
tor tightened 1.
c) Place on each bleed screw ( 5) a transparent
tube with its other end in a clean container.
Slacken bleed screws (5).
d) nlfliuiniv broke pcdfll ~yrrlly depwssvd. ar,d s/or,
vspiuv C idiivg sprcd ).
e) Let fluid flow until it is free of air bubbles.
Then tighten bleed screws.
Release brake pedal.
f ) Remove bleed tubes.
Check bleed screws are propeily sealed by
fully depressing broke pedal.
Fit rubber protective cops.
Stop engine.
4. Fit rear wheels and removable panels
Lower vehicle to the ground.