Nut Citroen CX 1981 1.G Workshop Manual

Downloaded from www.Manualslib.com manuals search engine OPERATIONS
The sequence of operations has been devised in order to obtain the best standard of work in the
shortest possible time.
The numbering of the operations is made up as follows
a) The code letter for the car (/ MA 3) for all CX vehicles except <f Fuel Injection a). /< MA-IE 1) for
CX vehicles with ,c Fuel Injection )I.
b ) A number made up of three figures denoting the unit or its component.
c ) A figure code designating the type of repair
- the figures 0 0 0 indicate the characteristics of the car
the figures 0 0 indicate the characteristics of the unit
- the figure 0 indicates checks and adjustments
the figures 1 4. 7 indicate removal or fitting
- the figures 2. 5. 8 indicate dismantling or reassembly and
the figures 3 6 9 indicate reconditioning
The thumb-indexing which corresponds to the list of operations enables the particular operation
to be found without difficulty. TOOLING
Special tooling is denoted in the text by a number followed by the letter ‘I
The part-numbers inferior to the 6000 series concern tools aiready in use and common to vehicles
previously introduced and to CX vehicles.
The 6000 series refers to tools specially designed for CX vehicles
Additional tools of local manufacture are indicated in the text by a number preceded by the index
MR manufacturing drawings for these tools appear at the end of the particular volume filed in
numerical order. TIGHTENING TORQUES :
Torques are expressed in the following units
either in metres Newton ( m.N ) the legal unit for measuring torque. with the corresponding
amount in metre-kilogrammes ( m.kg )
or in decanewtonmetres ( da Nm ) 9.8i Nm 1 m.kg ci.981 daNm
The numbers corresponding to the torques are (t rounded off 1)
Examples 2 m.N 0.2
m..kg 60 m.N 6
m.kg
IMPORTANT When a tightening torque figure is followed by the words 11 torque wrench 11 the
operution must without fail be carried out with a torque wrench.
IMPORTANT WlTHOUT FAIL after each operation or group of operations there is a chapter
headed (, TIGHTENING TORQUES ,,; the screws nuts or studs which are underlined
indicate
that they are of a special grade ,c SECURITY HARDWARE 1). When refitting it is ESSENTIAL
to use this type of HARDWARE TO THE EXCLUSION OF ANY OTHER. ADVISORY SERVICE
For a!1 technical information concerning these vehicles please contact
The Service Department,
Citroen Cars Ltd..,
Mill St.,
Slough Berks. GE. Tel. Slough 23808
or DEPARTEMENT TECHNIQUE APRES-VENTE
ASSISTANCE TECHNIQUE -
92000 NANTERRE - FRANCE - Tel. 204 40 00 :
.- ---

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 00-855 : l:itting the side jirlis/Ji>lg strips. op. MA. 00-855 1
FITTING THE SIDE FINISHING STRIPS
u PALLAS )) and (( ADMINISTRATION u type
260
.I
1. Fitting the lower body-shell finishing strips :
Position the inner embellishers : front, centre and rear. The clearance between each embellisher must not
exceed 5 mm.
Mark and punch the eight fixing holes using
a pin-punch, and fit the round headed self-tapping screws. Tighten
them.
Position the outer embellishers, mark and punch each fixing hole using a pin-punch, and fit the self-tapping
fixing screws. Tighten them.
2. Fitting the bumper and protective pads :
e
I
Fit the protective pads, and secure them using nuts and contaci washers. i -
1
i
.*
-1 - i --
-_ !
’
..-*

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 01 : 1’. I, -1’ IO c ( lOi, o/ I/J<, c~lcrlricnl /l/lilS. Op. MA. 01 1 PROTECTION OF THE ELECTRICAL UNITS
PRECAUTIONS WHEN CARRYING OUT WORK ON THE CAR
1. Battery :
a) Disconnect the negative terminal first, then the positive one.
b) Ensure the battery is properly connected, with the negative terminal being connected
to earth.
c) Carefully connect both leads to the battery terminals, the negative lead being connected
last.
Before connecting the negative lead ensure that there is no flow of current. This can
be established by briefly touching the negative terminal pith the lead end : sparks
indicate a short circuit which must be corrected first.
d) Before using the starter ensure that the two leads are correctly tightened on their
respective terminals. $ 2. Alt ernator-Regulator :
a) Do not rotate the alternator unless it is connected to the battery.
0
2
2 b) Before connecting the alternator ensure that the battery is correctly connected
2 (negative terminal to earth ).
c) Do not check the operation of the alternator by short-circuiting either the positive or
the u EXC )) terminals and the earth terminal.
d) Take care not to reverse the leads connected to the regulator.
e) Do not attempt to re-energize the alternator : this is never necessary and in any case
would damage both the alternator and the regulator.
f ) Do not connect a suppressor capacitor at the u EXC )) terminal of the alternator or the
regulator.
g) Do not connect a charging unit to the battery and never carry out arc welding ( or spot
welding) on the car chassis unless both the positive and the negative leads are
disconnected from the battery. 3. Ignition coil :
4. Q.I. Headlamps :
a) Connect the supply lead of the coil to the external ballast resistor terminal and not to
the coil itself.
b) Connect the suppressor with a jump lead to the feed terminal of the coil. Only fit the
suppressor recommended by the factory.
a) Only replace a Q.I. bulb with the headlamps switched off. After having used the head-
lamps, it is wise to let them cool down for five minutes before handling.
b) Do not touch a Q.I. bulb with bare fingers. Any fingerprints on the bulb must be cleaned
off with soapy water and the bulb dried with a lint-free cloth.

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 02 : I+ 4’ 0, “‘g 01, Ill<, l1\~c!).ollli(- s\‘sfell~. Op. MA. 02
I To connect a union proceed as follows :
- Position sleeve-seal (( a u lightly coated with
L,HM fluid; this sleeve seal must not reach the
extremity of pipe (( b )).
- Centre the pipe in the housinq by lininq it up
with the axis of the hole, avoidinq all stress.
( Ensure that the end u b )I of the pipe enters
into the smali bore C< c )> j.
Start screwing in the union nut by hand.
- Tiqhten nut moderately : excessive force could
cause a leak because of deformation of the pipe
NOTE Tiqhteninq torques :
3.5 -mm pipe t 5.8 to 6 6 ft lbs
4 5 mm pipe 5 8 to 0 mN ( 0.8 to.0 9 ‘1 kg )
6 6 to 8 0 ft.lbs
6. O-mm pipe
1
9 to 11 mN (0 9 to 1 1 m.kg ) c ) Fittilzg :
I Only use joints of a quality compatible with LHM mineral fluid.
The design of the various seals ensures that their sealing action increases with fluid pressure The oiltiqhtness e
is therefore not improved by greater tiqhtness of the unions
2 To connect a rubber tube a rubber rinq of suitabie diameter has to be positioned between thr, tube and the hose
:
E clip.
0
x
a
A 9, CHECKS ON COMPLETION OF WORK
On completion of work on hydraulic units or the system itself check the followinq :
h) ‘1’11~ C./CJ~~~IIC-C, I~c,lrt,c,c,rt I/J<
pipvs : pipes must not touch one another or any other component, nor may any other
unit, whether fixed or movable, exert any stress on them.

Downloaded from www.Manualslib.com manuals search engine 4 II - REPAIRS PLASTIC TUBING.
OBSERVATIONS :
a) This operation can be sarried out by sleeving the damaged tube
b) If two sleeves are to be located on one length of tube the interval between them must be about 30 in in order
to retain the flexibility of the tubing.
c) Obtain a bottle of Rilsan adhesive ( 125 cc ) sold by the BOYRIVEN firm , 37 bis rue de Villiers _
92200 u NEUILLY sur SEINE - Tel. 624-36-11
( Rilsan adhesive harms the skin : avoid touching it with the fingers, use a wooden spatula instead
1. Cut the tubing and roughen the ends over a lenqth of some 3.5 in. with abrasive paper N” 600
2. Carefully deqrease the roughened ends and the sleeve with trichlorethylene
3. Heat the Rilsan adhesive in a water-bath to raise its temperature to 60°C.
Do root c~sc-c~c~d /his Icv~p~~rntriw.
NOTE : This operation is essential to cut down drying time
4, Coat the ends of the tube and the inside of the sleeve with adhesive.
Leave the parts to dry for a few minutes.
Insert the ends of the tube into the sleeve.
).
Allow the assembly to dry for three to four hours before using the repaired tube aqain.

Downloaded from www.Manualslib.com manuals search engine 2 OPERATION No MA. 03 : I~grhdicwts prdcomis&.
II. CLEANSING PRODUCTS
-
USAGE PRODUCT
R insing LHM hydraulic
Pi
ping
D egreasing of mechanical
a: ssemblies, when cold
oint face cleanser
‘leaning of carburettors CHARACTERISTICS
I MANUFACTURERS.
I
TOTAL
Hydro-rincage
MAGNET 6
OIL AND GREASE
REMOVER
PROTOLAN 3 D
RAVITOL X
MAGSTRIP
SUPER-CLEAN
Carburettor cleaner
P.D.R.
Carbuclin For a thorough rinse, leave the
product in the circuit for 1000 km
(600m) TOTAL
C.F.R.
Insoluble, in water, dries rapidly
has high insulating qualities MAGNUS
Let the product act
(undiluted in solvent ) then
rinse with water MULLERANDCO
Is used undiluted and must be
rinsed with water
Gelatineous liquid for removing
liquid gaskets and non-metal
gaskets Ets N BREGER
Ets RAVICOLOR
MAGNUS
Dry cleanser to be used before
application of Loctite products COMET
Department D.A.V.A. /
III. SEALING PASTES.
PRODUCT
PROTO-JOINT
CURTYLON
LOWAC
FRENETANCH
FRENEBLOC
FORMAJOINT
SILICOMET
noir
(blark ) CHARACTERISTICS
Resist mechanical stress, and
oil-derived products MANUFACTURERS USAGE
JEAN - BRASSART
CEFILAC
Department Joint Curty Clean with alcohol -
Resists hydrocarbons
SEBIS
Locks and seals any assembly
which is screwed on, but must
remain removable Sealing of joint faces,
screws, studs and nuts
Locks and seals studs, screws
and nuts with maximum
effectiveness COMET
Department D.A.V.A.
NOTE : These five
products are available as
a kit, with in addition
SCELBLOC (to be used
when securing bearings,
bushes etc.. ) and SUPER-
CLEAN (cleansing pro-
duct ) Seals joint faces and unions
Seals joint faces, as replacement
of ordinary gaskets
Sealing of door and wind-
screen sealing rubbers

Downloaded from www.Manualslib.com manuals search engine d) Valve springs :
The inlet and exhaust valve springs are identical.
Characteristics :
- Diameter of wire : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6 + 0.02 mm
Interior diameter : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 2 0.2 mm
- Length of spring under load : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 39mm(load=m40t2,8kg)
30.6 mm ( load = 84 ~‘1.8 kg )
Coating : ._._................................................................................................ Red or blue varnish
e) Upper spring cups : Identical inlet and exhaust.
f ) Retaining clips : Identical inlet and exhaust
6. Timing :
a) Camshaft :
Chain-driven camshaft, resolving in three cupro -lead bearings.
- Camshaft end-float (a,//>~ I /hi<-krlc~ss a,/ !/o,/s(, I: 0.05 to 0.30 mm
- Thickness of flange : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.44 to 5.46 mm
- Amount of cam lift :
Inlet : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..__.._..._ _.;._.; .._...._ ..__.___.., 6.63
2’0.02 mm
Exhaust : ___._._..._.........................................................................................,... 6.14 + ‘0.02 mm
WARNING :
Never attempt to rotate the engine by means of the camshaft pulley fixing nut.
TIMING DIAGRAM
(With theoretical inlet and exhaust clearance of 1 .lO mm )

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 100-00 : Characteristics and special jeafruvs oj the cvlghv.
Op. MA. 100-00 17
9..Tightening torque :
a) Engine suspension :
4-.spc~~d manrlal gearbox :
7 Torque bar (( Nylstop )) fixing nuts : .............................................................. 8.2 da Nm ( 59 ft.Ib )
- Securing screws for the flexible bearer on the subframe ; ........................ 3 da Nm ( 22 ft.lb)
- Flexible bearer assembly screws :
..................................................... .
........ 10 da Nm (72 ft.lb)
S-sp~~tl n1m11ra1 gca~box. and forq~~c cour,c~rtrr gc~arkos
- Torque bar (( Nylstop )) fixing nuts : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 da Nm (72 ft.lb)
- R:H. flexible mountinq assembly screws : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 da Nm ( 72 ‘ft.lb )
- L.H. flexible bearer assembly screws : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 to 17 da Nm ( 116 to 123 ft.lb )
b) Crankcase :
Screws and nuts securing the timing cover : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 to 1.9 da Nm (10 to 14 ft.lb)
c) Timing :
- Screw on the camshaft thrust bearing : . . . . . . . . . . . .._............................................ 1 .4 to 1 .9 da Nm ( 10 to 14 ft.lb )
- Timing chain guide securing screw : . . . . . . . . . . . ..__................................ . . . . . . . . . . . . . . .
1.4 to 1.9 da Nm ( 10 to 14 ft.lb)
- Timing chain tensioner securing screw : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9 to 1 .I da Nm (6.5 to 8 ft.lb )
d) Lubrication system :
- Oil filter mounting ( LOCTITE FRENETANCH ) : ......................................
1 to 1 .5 da Nm ( 7 to 11 ft.lb )
- Oil temperature switch : .................................................................................. 3 to 3.5 da Nm ( 22 to 25 ft.lb )
- Union screw for cylinder head lubrication passage : ..................................
1 to 1 .2 da Nm ( 7 to 9 ft.lb )
- Oil filter cartridge ( SPV
wnrt/r]nctc/rer‘s rmte ) : ............................................ 1 .l to 1 .5 da Nm ( 8 to 11 ft.lb )
- Engine oil drain plug ( lo~!,c,r s/t~/p
co/‘cr) : .................................................. 3.5 to 4.5 da Nm (25 to 32.5 ft.lb)

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 112-O : ChcJcking and adjusting the valrv mechanism. Op. MA. 112-O
1
ADJUSTING THE ROCKER ARMS
Ir
E
2 Rotating the crankshaft :
7
m
Vc,birlvs /i//cd wifh n WRIINRI ~varbot :
E Raise one front wheel of the vehicle,
and engage 4th or 5th gear in order to rotate the crankshaft by means of the
3
6 raised wheel.
I
e Vchirlcs /ittcd wilh a lo~qnr covwrlc~ :
- There are two methods for rotating the crankshaft :
Gz feed the
starter using CI G-volt battery,
;
remove the protective plate under the converter casing, and rotate it using a screwdriver.
:
Never attempt to rotate the engine using the camshaft pulley locknut.
1. Remove the following :
a) The rocker cover and its gasket (~,ofii~rr~s
/i//d Will, a rarb,,wt/or I.
b) The injection manifold and the racker-cover
(/,,<,I iU/<~CfPd r,zgir,rs 1.
2. Adiust the engine cold :
Inkt : 0.15 mm
With lb<‘ <wgir,<~ cold
i Exhaust : 0.20 mm
3. Fit the rocker cover and its gasket.
Tightening torque of fixing screws : 0.5 to 0.8 daNm
(3.5 tc. 6 ft.lbs ).
Fit the injection manifold f i/ nczvd br 1.
Lower the wheel to the ground,
and disengage the
gear.
r ACCEPTABLEMETHODS
I I
I. (< Rocking )> the valves :
(Inlet valve starting to open, and exhaust valve
I
closing) closing)
Bring No. 1 in <, rocking position /) adjust No. 4 Bring No. 1 in <, rocking position /) adjust No. 4
II II
No. 3” ” ” ” No. 3” ” ” ” No. 2 No. 2
0 0
No.4 I’ ” ” ” No.4 I’ ” ” ” No. 1 No. 1
” No.2 ” ” ” ” ” No.2 ” ” ” ” No. 3 No. 3
II. Exhaust valves fully open :
Valve to be opened
fully : Adjustment of rocker arm
CleUKUlCe
Exhaust valve No. 1
,, I, No. 3
,, ,, No. 4
,, ,, No. 2
If a rocker-rim noise persists after adjustment, proceed as follows :

Downloaded from www.Manualslib.com manuals search engine Remove the control pulley ( 1 ) from the extremity
of the camshaft.
SIacken fixing nuts (3 ) of the camshaft bearing
housing.
Rotate the crankshaft so as to fully open the exhaust
valve of No. 4 cylinder.
Lock the securing screw (3 ) for the bearing housing.
Position the control pulley.
Tightening torque for nut (2) : 8 daNm (58 ft.lbs).
Adjust the rocker arms as indicated previously.