1979 Citroen CX engine

Downloaded from www.Manualslib.com manuals search engine Supplement NC 1 to Manual 818-l f CORR )
Level indicator
Section A
Maximum mark
Minimum mark
1. Overflow return from front and rear suspension cylinders
2. Overflow return from brake valve, safety valve and front and rear height correctors
3. Brake valve return
4. Return from pressure regulator and front and rear correctors
5. Suction line for HP pump
6. Filter on suction line for HP pump
7. Deflector
8. Overflow and return line filter
9. Level indicator float
NOTE The reservoir on CX 2000 and CX 2200 vehicles produced after July 1375 is fitted with a pre-shaped protective plate
located between the central unit and the outer uanel of the reservoir

Downloaded from www.Manualslib.com manuals search engine HIGH PRESSURE SINGLE CYLINDER PUMP f-/i, to-0 j
1.7 to 1.9 daNm
12 1/‘2 to 14
ft.lb
1. Plug
2. O-ring
3. Seat
4. O-ring
!i. O-ring
6. Sleeve and piston
7. Snap ring
8. Spring plate
9. Spring
10. Body and intermediate piston
11. Plunger
12. Roller
12
ZESCRIPTiOH
Reciprocating single-cylinder pump, operated by an eccentric machined on camshaft
Operating ratio ,.
_..__.,.,..._.. . . . . . . . . . . . . :... ,. 1 cycle/ 2 engine revolutions
-
- Piston diameter .._....._.....,,.......,............. .,.,.,.,... .,. 14 mm
- Piston stroke ( (‘c-c c,///rrc~ /if/ ) ,. ,,... ‘10 t 0.10 mm
.._..... ..,....,.,............. ..I.
- HI ,,‘OJJ f~ji,~c/icntin~f : output (111fr1cr /on{1 of I75 1~nr.s.
/ictirl f/f (10” (. i.. 1.07 cm3per cycle
SPECIAL FEATURES
Tightening torques :
- Pump fixing screw on crankcase .._.....,.._._..,.....,.............. .._,__. _. _.. .._......_........ 19 mN ( 1.9 m.kg) ( 14ft.b)
( Fit a ,~c,~I’ paper sc~nl ~r,hcvc,r’c~~ pzrmp is dismar~tld~ -

Downloaded from www.Manualslib.com manuals search engine H.P. SINGLE-CYLINDER PUMP ( 10/‘1’)7(, -I
1.7 to 1.9daNm
12 l/2 to 14
ft.lb
1. Plua
2.0-= -ring
3. Seat
4. O-ring
5. O-ring
6. Sleeve and piston
7. Snop ring
8. Spring cup
9. Spring
10. Body and intermediate pist
11. Plunger
12. Roller breather
13. Pump unions
HP output
1
2
------3
One-way
e-
iI 7
.uH-.!.a
e
10
tn 11
ion
CHARACTERISTICS
It differs from the single-cylinder pump fitted up to lO/ 1976 only in the two pump breather unions.
Reciprocating single-cylinder pump, driven by an eccentric machined on the camshaft
- Operating ratio .._._._....._........ 1 cycle/ 2 engine revolutions
- Piston.diameter .._...................
14 mm
- Piston stroke I
ecrcwtric lijt J _......__._........_.._...,_........,._.._._...___,, 10 2 0.10 mm
- For iu fomalior~ : output ( unJer prc’ssure oil75 bars (2F3X psi),
and with fluid at 60’ C _.__.._______.._.___._.___,........_._....__.__.._............ 1.07
cm3 per cycle
SPECIAL FEATURES
Adiustments :
- Clearance between pump and body ( b+rc, tightwivg ) 0.05 to O-09 mm
- Clearartce obtained by usivg shims ojrli/!vrcrtt thirhc~sses 0.05 - 0.10 - 0.15 - 0.20 mm -,..
Tightening torques :
- Pump fixing screws on crankcase . . . . . . . . . ..__._.._.._...._...__.........._.,. 1.9 dab ( 14 ft.& )
( Fit a neu’ paper seal u’bencucr p~unp is dismant/cd)

Downloaded from www.Manualslib.com manuals search engine DIAGRAM OF BREATHER CIRCUIT FOR SINGLE-CYLINDER PUMP
f (:. e Saloori 1) i cjhirles with mf7~7~inl stcjeriiig IO I 1976 -1

Downloaded from www.Manualslib.com manuals search engine SEVEN-PISTON H.P, PUMP
( Power steering and (( Estate )) vehicles )
1. Control shaft
2. Oscillating plate
3. Piston connectin’g rod
4. Piston
5. Sleeve
6. Pump valve
7. Pump body
CHARACTE,RISTICS
- The pump rotates at half engine speed :
- Output for each pump cycle f
/or ir/{orv/afiol; ) . . . . . . . . . . .._.._........._.........._.........._............. 2.8 cm3
- Valves (6) oil tight up to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .._._....... 150 bars (2175 psi )
SPECIAL FEATURES
- Piston connecting rods length ( in step of O,l mm 1 ......................................................... 28.8 to 30.5 mm
- Clearance between crown of piston ( TDC ) and pump vaIve ..... , ...................................... 0.5 mm

Downloaded from www.Manualslib.com manuals search engine 6 OPERATION No MA, 390.00 : C1 ,ararteristics
ad special fratuws oj the source
apfd rescr7,e o/ pressur(~ - Hydraulic system.
PRESSURE REGULATOR
MAIN ACCUMULATOR
Main occumulotor 7 Spring cup
O-ring 8 Cut-in spring
Spring base plate 9 Spring plug
Spring housing 10 Spring adjusting shims
Cut-out spring 11 O-ring
Spring odjusting shims 12 Snap ring
CHARACTERISTICS
Pressure regulator with pilot slide-valve :
- Cut-out pressure . .._......,_....____.............,.,......................................... 170 f 5 bars ( 2466 !I 73 psi ) _ Cut-in pressure __.....___.__.,..,.....,..,................,,...................................
145 + 5 bars ( 2103 + 73 psi )
Main accumulator :
- Capacity . . . . 0.400 litre ( 0.70 pints )
- Mark on filler plug . . , 62
- Calibrated pressure C /or checking purposes ) 62 + 2 bars (899 f 29 psi )
- 10 - 145
SPECIAL FEATURES
Pressure regulator :
- Thickness of adjusting shims . 0.30 mm
- For cut-out ..I.._......._..... .._. ,. .._. .:.. ,. ,. ..__.. ,. ..__ ,. ,. ._ ._.. .___ 0.30
mm
- For cut-in .._.... * .__....._._.,.,.,._.,....................................... 0.30 and 0.70 mm
- One .30 mm shim brings about a change in pressure by . . . . . . . . . . , approx. 3 bars (44 psi 1
- One .70 mm shim brings about a change in pressure by . . . . . . . . . approx. 7 bars ( 102 psi )
Ti$ttening torques :
- pressure regulator fixing Screws . . . . .._.__.....__._............................... 1.8 daNm ( 13 ft.Ib )
- Main accumulator ..,.. ,. . . ,. __ . . . . .._. ., ,__. ._ __ 2.5 to 4.5 daNm ( 18 to 32 l/2 ft.lb )

Downloaded from www.Manualslib.com manuals search engine Op. MA. 390.00 i
DIAGRAMS OF OPERATION
CUT-OUT
1 a hydou ic CI~CIII!
f

Downloaded from www.Manualslib.com manuals search engine BRAKE ACCUMULATOR
1 I’r~rc~(,r-s!(,(,riri~ I cbic-lcc5 J
HP
To brake valve
--
Front brakes supply Supply :
- steering governor
- safety valve CHARACTERISTICS
Brake accumulator :
- Capacity .._._._.._.._.___._____._._._..__........ _._____ _......._._.___._ _____..____.___ ___._._._._._._. 0 400 litre ( C. 70 pts )
- Identification mark on filler plug ,...........
62
- Calibration pressure f /or rhc,c-kir/~ J 62 _ 3z bars ( 899 1 dTd psi ) SPECIAL FEATURES
Tightening torque :
- Accumulator. onto its mounting .,..... .., .._.. .._.. .._....._._._. 3 daNm ( 21 l/ 2 ft.lb )