CITROEN CX 2000 Repair Manual page 96

OPERATION No MA. 142-O SD : (i 'CC ,ii:: md nr/;,,sfinji //I<, "~,ti.pOlllLliol, .S,Sl~l,,
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Op. MA. 142-O SD
5
ADJUSTING THE IDLING SPEED AND THE CO READING ( (..\ '01~0 I
- IMPORTANT : II i\ nhsr,l,,/<~l, irirhi<&,, ,o rhnri~q~, /he sv//ing o, .Y,<,,I-r< lo,, , I , ,o, //a~ ~i.<o,,<l <h<>l <' h,,,,<~r-,,,
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: 0
m
n (I vehicle fitted with the following :
m
-.
",
- distributor : DUCELLIER 4510 B
6
Dwell ratio
61 ':: ? 3 ',
x
2
Dwell angle
557 i 2=
Static advance
6
i
Strobe liming
6. at 850 rpm
;
F
Centrifugal curve LA 2
a
a
- carburettor : WEBER 34 DMTR 29/200 Identification mark W 61-00
5 "2
- spark plugs : AC 42 FS ( g.ap : 0.7 mm )
- engine with the following rocker cleoronces : Inlet 0.15 mm, Exhaust : 0.20 mm
Checking or adjusting the CO reading is carried out in the following conditions
1.
Disconnect from the air-supply valve the pipe from the valve to the exhaust mariifold.
2. Bring the engine ail up to a temperature of 85" ? 5" C.
3. Wait.until the cooling fan f or fnvs 1 cut in.
4. Adjust screw ( 3) for the first choke butterfly in order to obtain on idling speed of 850 to 900 rpm
5. Slowly adjust the mixture screw (2 ) so as to obtain a CO reading of 2 to 3 "A for a temperature of 15 to 30" C
6. Adjust the mixture screw (2 1 last.
7. Adiust the throttle butterfly opening :
Disconnect one of the leads from the S( PIERBURG n electro-valve
Adjust screw (4) to obtain on engine speed of 1450 + 50 rpm
Connect the S< PIERBURG n electro-valve
8. Connect to the air-supply valve, the pipe from the valve to the exhaust manifold.