1979 Citroen CX engine

Downloaded from www.Manualslib.com manuals search engine OPERATION NJ MA. 230.00 : 1 i !O,Oi ,V,iC,i< c “ii<, ‘/QC < iOi ,< “,,i!< 0, ii’< /
Op. MA. 230.00 7
COOLING SYSTEM
2 4 litre engine fuel injection (Thermostat and heater unit open)
Hat coolant
Cold coolant
Partial view F
1 Rodiotor
2 Electric fon (5)
3 De-aerating pipe
4 Header tank
5 De-aeration chamber
6 Thermostat
7 Heater unit
6 Drain top
9 Thermal switch for fan
0 Bleed screws
Thermast.t open

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 230.0 : M k
08 ,ri,y r,i, //I<’ roo/i,ip c, s,w,,.
Op. MA. 230.0 1 FILLING THE WATER SYSTEM
IMPORTANT
: Core must be token to protect alternator from water whenever working on cooling systems fitted close to this unit.
Two operations are involved
- Complete filling i roolir~g c~s~<,v, nvd bvolvr ,,ail ,
- Partial filling I roolir,p ~J~S/IW, oul~* 1
NOTES
Draining the radiator and the engine unit does not involve draining the heater unit.
- De-aeration of the system is only operative when the thermostat is open 1 v,rgiur wnnu J.
I. COMPLETE REFILLING 1. Remove
spare wheel
.
2. Open heater control to fullest extent ( inside
vehicle 1.
3. Unscrew the two bleed screws ( 1 ) and ( 2 ).
Place a tronsporent tube
200 mm in length
over each screw in order to ovoid the escape
of the liquid.
4. Disconnect the heater outlet hose and pour in
approximately 0.6 litre of cooling liquid.
Reconnect tube ( 4).
5. Fill remainder of circuit slowly through the
header tank and close bleed screws I 1) and
( 2) after releasing air
6. Remove transparent tubes ( 3) and close header
tank.
NOTE : To induce primitzg o/pum~,~~~sseri;irrp
o/ circuit I I bar 1 f 14. 5 psi ) may b+ r~i/vrtd:
(11 through overflow orifice ( 5)
I Vehicles -2/ 1976 ).

Downloaded from www.Manualslib.com manuals search engine 2 OPERATION No MA. 230-O : II .h’ 0, fug Ol, I/7‘, rodir,p sys/w1.
b) by replacing the header tank cap with a
flexible rocker-cover union
I V~~/7id<~S 2/ IU7h - ,
7. Run engine at approximately 2000 rpm until
electric fan (5) cut (5) in.
Then let the engine idle for about 10 mins.
Never open header tank cap while electric fan (5)
ore/is in operation.
Do not open bleed-screws ( 1 ) and (2) while engine
is running.
8. After releasing the air. water level should
stabilize in header tank. Level should be checked
when the engine is cold.
9. Fit the rubber covers cm the bleed-screws.
Replace spare wheel.
II. PARTIAL FILLING
Same operations as for total filling except that
the heater unit is not filled by outlet tube ( 3)
to the radiator.
111. FILLING AND DE-AERATING THE AUXILIARY
HEATER UNIT ON CX AMBULANCE VEHICLES
Before connecting the auxiliary heater unit water
system to the main system. the following must
be carried out :
- Fill up the auxiliary heater unit and its hoses
( with heater control open I with 1.6 litres
( 2.8 pts 1 of coolant liquid of the some type
as that used in the main
system.
- Connect all hoses. and tiqhten 011 hose clips.
-Stat engine. and wait for electric fan (5) to
to cut-in ( De-aeration time 1.’
- Check the operation of the auxilioly heater unit.
- WHEN THE ENGINE IS COLD, check the level,
and top up if necessary.

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 236.0 : C h<,rki,,p a,,d nd;r,slh,p I/w jwllr\s aurl /x,//s Op. MA. 2360 I
PULLEY ALIGN& IENT
1. Aligning the camshaft pulley :
a) Position device 3085-T on the water pump
pulley.
b) Bring its rod into contact with the groove of the
camshaft pulley.
NOTE Aligning the camshaft pulley is carried
out by’plocing shims behind the pulley.
Tightening torque for nut (2) for the comshoft
pulley : 8 daNm ( 58 h.lb ).
2. Aligning the alternator pulley :
Proceed as for camshaft pulley / ,,,;/I> s SC-r<,!, , j I /or I,,<, RllI~)11010F c<)L,, <,d i,, ,,
NOTE Aligning the alternator pulley is carried
out by plocinq shims behind the pulley.
Tightening torque for nut (4) for the olternatov
pulley : 4 daNm ( 29 ft.lb ).
3. Aligning the high pressure pump :
a ) Tighten pump on its support plate
b) Place device 3085-T on the camshaft pulley.
c) Brinq its rod into contact with the groove of the
pump pulley.
NOTE Aliqninq the H P pump is curried out using
adjustment shims placed between the pump housing
and the support plate.
Tightening torque for the nut securing the H.P. pump :
4 doNm ( 29 ft.lb ).
NOTE Vchirlc,s filled ,,~;//I oirrrii,rli/iriniii,~
For the alignment of the compressor pulley, SLO
Opr~mrio~, MA, ~,40.,-(,.

Downloaded from www.Manualslib.com manuals search engine 2
TENSION OF BELTS
RECOMMENDED TENSIONS f /or i//jormation I
Water pump belt :
New belt : ........................................... ................................................. 400 to 450 N ( 40 to 45 kg ) 88 to 99 lb
Run-in belt ...................................................................................... 250 to 300 N ( 25 to 30 kg ) 55 to 66 Ib
Alternator belt :
New belt ......................................................................................... 400 to 450 N ( 40 .to 45 kg ) 88 to 99 lb
Run-in belt .................................................................................. 250 to 300 N ( 25 to 30 kg ) 55 to 66 Ib
Vchicic)s with power slcvring :
H.P. pump belt :’
New belt ........................................................................................... 350 to 400 N ( 35 to 40 kg ) 77 to 88 lb
Run-in belt ............................................................................... 200 to 225 N ( 20 to 22.5 kg ) 44 to 50 lb
Compressor belt :
New belt ......................................................................... ............... 400 to 450 N ( 40 to 45 kg ) 88 to 99 lb
Run-in belt 2% N
..................................................................................
( 25 kg 1 55 Ib
Toothed belt for water pump : ........................................................ 150to180N( 15to18kg)33to40lb
NOTE : Insufficient tension reduces considerably the reliability of the toothed belt.
Tension in excess of 180 N ( 18 kg ) ( 40 Ib ) will cause whistling noises.
Consequently. adjust toothed belt tension as tight as possible without it whistling tighten until it whistles whilst
running. and slacken until the noise disappears.

Downloaded from www.Manualslib.com manuals search engine CLUTCH
OPERATION No MA. 312-00 : (:l,n~nc/cristics nt~d spccinf jc’n/lIrc,s oi r/l<, p~,(jnl--op~,rnlen
Op. MA. 312-00 1
Clll Ich ,ncJ chnr,ism
CHARACTERISTICS
VEHICLES CX 2000 Saloon
and Estate
Diaphragm
mechanism
Type 215 DBR 410
Disc :
Ref. (tVERT0 )) 62838,if D = 136mm
63550.if D = 142 mm cx 2200
All CX 2400 vehicles
I
235 DBR 490 ( I/‘1075 ----t)
235 DBR 410 I 3) 1075 ---t)
235 DBR 450 ( l/Iv76 w)
62957 (d= 225 mm ) (l/75-)
63266 (q5- 225 mm ) ( 3/75 0)
63571 ( 47 228.6 mm) ( l/76 -1
Prestige -8:’ 76
CX 2400 Injection t 235 DBR 490
Prestige K/76 -t
All CX 2400’s
except Injection
63571 ( d = 228.6 mm )

Downloaded from www.Manualslib.com manuals search engine 2 OPERATION No MA. 312-00 : Characteristics ntrd special featttws o/ thc~ pedal-operatd
clrilcl~ it~c~chattisttr
Replacing the disc :
- With 235 DBR 490 or 235 DBR 450 mechanisms. fit a N VERTO H disc, ref. no 63571 ( i = 228.6 mm 1
- With 235 DBR 410 mechanism, fit a (( VERTO N disc. ref. no 63266 ( 4 = 225 mm 1.
Replacing the mechanism :
- Replace the 235 DBR 490 and 235 DBR 410 mechanisms, by a 235 DBR 450 mechanism, with a (( VERTO P)
disc, ref. no 63571 ( + 1228.6 mm ).
Thrust bearing : self-cent&in9
Ill. SPECIAL FEATURES
Clearance between thrust bearing and diaphragm : 1 to 1.5 mm

Downloaded from www.Manualslib.com manuals search engine OPERA1
ADJUSTING THE CLUTCH FREE-PLAY
Adjust the clutch free-play
Remove spring (3 ).
Loosen lock nut ( 1 ).
Tighten nut (2 ) until the thrust hearing is in
contact with diaphragm ( hard point 1.
NOTE : Clutch pedal should be in contact with
its upper stop at << (I n.
Unscrew nut (2 1 two turns and a half to obtain CI clearance of 1 to 1.5 mm between thrust bearing
and diaphragm.
Tighten lock nut ( 1 )
Fit spring (3 I.