Dacia Pick-Up 1304/1305/1307. Service manual — part 25
10
10 - 66
ENGINE AND LOWER ENGINE UNITS
OIL PUMP DISMOUNTING – REMOUNTING
D
ISMO UNTING
Disconnect the battery.
Drain the oil off the engine.
Dismount :engine shield,crossbar between the longitudinal girders,elastic bushing nuts on the
anti rolling shaft and the oil pump.
Unscrew the attachement screws and take out the oil pump.
Clean the contact surfaces of the gaskets or those with sealant material ( engine bloc and oil
sump).
R
EMOUNTING
Mount the new oil pump with a new gasket.
Τighten the attachment screws.
Remount:
- the oil sump;
- the bearing attachement nuts to stabilizer rod;
- the crossbar between the longitudinal girders;
- the engine shield.
Perform the oil filling of the engine.
OIL PUMP
10
10 - 67
ENGINE AND LOWER ENGINE UNITS
REPAIR OF OIL PUMP
D
ISMO UNTING
Dismount the pump cap.
Dismount: the free pinion and its respective shaft.
ATTENTION !
The valve spring and the ball may spring up.
Wash the parts and check the maximum clearance wear between the pinions and the pump
body to be 0,2 mm. If clearance is bigger, replace the pinions.
R
EMOUNTING
Mount in the body of the pump the followings:
- the free pinion;
- the drive pinion;
- the spring tray;
- the spring;
- the valve ball.
Mount the cap by compressing the discharge valve spring.
Tighten the attachement screws.
OIL PUMP
FUEL MIXTURE
12
CHARACTERISTICS
12 - 1
E
NGINE
C
H ECKING
TO
BE
DO NE
O N
IDLE
RUNNING
*
T
YPE
I
NDEX
R
ATE
( rtm )
P
OLLUTION
EMISSIONS
F
UEL
( minimum
octane
number CO)
Co ( % )
(1)
Co
2
( % ) HC
( ppm )
L
AMBDA
(
λ
λ
λ
λ )
106
10
775 - 850 max. 0,5 min.14
0,97 - 1,03
max. 60
Unleaded fuel
( COR min 95 )
( 1 ) The CO value at 2500 rpm must be maximum 0,3 %.
∗ For a water temperature of over 80° C and after a steady value of 2500 rpm during
30 sec; after this,come back to idle running and measurement of polluting emissions is
to be done.
D
ENO MINATION
Computer ( U.C.E )
Injection system
Ignition
RPM senzor
Spark plugs
Fuel filter
Feeding pump
Pressure regulator
Injector
Injection central unit
Idle running regulator
Valve potentiometer
Oxygen senzor
Can purging valve
P
ARTICULARITIES
Monomotronic - M.A, 1.7, Connector with 35 pins
Monopoint Bosch type; Monomotronic M.A. 1.7
Static, controlled by computer
R
1-2
= 650 - 1100
Ω at 20
0
C
Spark plugs electrode distance = 0,8
Tightening moment = 2,5 - 3 daNm
Mounted under the vehicle in front the fuel tank
Replacement at every scheduled checking or at max. running
20000 Km
Electrical, immersed in the fuel tank
Flow: 1,1 l/min
Pressure: min. 1 bar at power supply of 12 V
Controlled pressure: 0,8 - 1,15 bar
R
2-3
: 6,3 - 7,4
Ω
Leakage max. one drop per minute
Tip ZEE 0438201216
R
1-2
= 4 - 250
Ω
R
3 - 4
= 0 - 200
Ω, switch closed
R
3 - 4
> 1 M
Ω switch open
R
1- 5
= 600 - 1400
Ω
R
2 - 4
= 400 - 4000
Ω in the aria of partial valve opening
Rich mixture U
λ = 0,9 V
;
Poor mixture U
λ = 0,1 V
R sensor heating ( 1-2 ) = 1 - 15
Ω ; Tightening couple: 4 - 6 daNm
Supply voltage: + 12 V
R valve = 35 - 55
Ω
12
FUEL MIXTURE
D
ISMO NTING
Disconnect the ( - ) battery terminal.
Dismount the air duct fixing clips.
Dismount the air duct attachment screws.
Dismount acceleration cable from the injector valve body.
Disconnect the feeding and return hoses and the connecting hose to the can purging
electrovalve.
Disconnect the connectors of injector
valve, as follows:
- push the lock (3) towards the arrow
(a);
- disconnect the connector.
Dismount the attachment screws of the
injector valve on the flange.
R
EMO UNTING
Perform in reverse order the dismounting operations: use a new gasket for the injector
valve body. Functional tests ( testing injector valve body running ).
ATTENTION !
In order not to damage the air temperature sensor and the injector,protect the
injector valve body against hits.Their protection cover shall be removed only after fixing the
injector valve body on the flange.
Avoid dirtying with impurities the connectors contacts and the valve body socket contacts,
in order to achieve perfect electrical connections.
Taking into consideration that in the feeding system,the fuel is under pressure even
after stopping the engine,care must be taken that gasoline from ducts not to reach in
contact with hot surfaces of the engine,in order to avoid possible going up in flames of
the vehicle.
The feeding and return fuel ducts shall be fixed to the corresponding connections of
the valve body using good ring clips,well tightened,in order to ensure the sealing of the
fuel feeding system.
INJECTOR VALVE BODY
12 - 2
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