1995 RENAULT MEGANE SCENIC fuel pump

FUEL SUPPLY
Supply pressure
13
E7J engine
CHECKING THE FUEL SUPPLY PRESSURE
SPECIAL TOOLING REQUIRED
Mot. 1311-01 Fuel pressure test kit
Disconnect the fuel supply pipe (1) from the
throttle body and insert the0 - 10 bars pressure
gauge and the three way union from the test kit
Mot. 1311-01.
99089R
Shunt terminals (3) and (5) of the fuel pump relay
(B) in the engine connection unit (see diagram on
page 13-2).
98756R1
The pressure should be 1.06 bar.
Checking the pump safety valve
If the fuel pressure is correct, feed the fuel pump
and clamp the pipe with the two position valve
for a brief moment. The pressure should stabilise
at approximately 3 bars.
13-11

99366R
FUEL SUPPLY
Supply pressure
13
K7M engine
Fit the 0 ; 10 bars pressure gauge and the hose
Mot. 1311-01.
Shunt terminals (3) and (5) on the fuel pump relay
located in the engine fuse box (see diagram on
page 13-2).
The pressure should be 3 bars ± 0.2.
When a vacuum of 500 mbars is applied to the
pressure regulator, the fuel pressure should be
2.5 bars ± 0.2.
CHECKING THE PUMP SAFETY VALVE (under the
same conditions as previously)
Shunt terminals (3) and (5) of the fuel pump relay
(see diagram on page 13-2).
When the fuel return pipe is clamped briefly, the
pressure should stabilise between 4.5 and 7.5
bars.
13-13

FUEL SUPPLY
Supply pressure
13
CHECKING THE FUEL SUPPLY PRESSURE
SPECIAL TOOLING REQUIRED
Mot. 1311-01 Fuel pressure test kit (with 0 ;+
10 bars pressure gauge included)
99217R1
Disconnect the rear fuel pipe.
Fit the three way valve (1) from tool Mot. 1311-01
and connect the 0 ; + 10 bars pressure gauge.
Shunt terminals (3) and (5) of the fuel pump relay
located in the engine fuse box.
The pressure should be 3 bars ± 0.2.When a vacuum of 500 mbars is applied to the
fuel pressure regulator, the pressure should be
2.5 bars ± 0.2.
CHECKING THE PUMP SAFETY VALVE (under the
same conditions as previously)
Shunt terminals (3) and (5) of the fuel pump relay
(see diagram on page 13-2).
When the fuel return pipe is clamped briefly by
the two position valve, the pressure should
stabilise between 4.5 and 7.5 bars.
F3R engine
13-14

DIESEL EQUIPMENT
Specifications
13
Vehicle GearboxEngine
Type SuffixBore
(mm)Stroke
(mm)Capacity
(cm
3)RatioCatalytic
converterDepollution
standard
BA0U JB3 F8Q 620 80 93 1 870 21.5/1 None EU93
BA0A JB3 F8Q 620 80 93 1 870 21.5/1 C25 EU96
ENGINE SPEED (rpm.)
Idle speed Maximum no loadMaximum with
load
SMOKE OPACITY
Homologation value Legal maximum
825 ± 25 5 200 ± 100 4 600 ± 100 1.24 m
-1 (40 %) 2 m -1 (55 %)
DESCRIPTION MAKE /TYPE SPECIAL NOTES
Injection pump
Pumps R598-2 and R598-3 differ
in that a coded fuel shut off
valve has been addedBOSCH
VE 4/8F 2300R598
VE 4/8F 2300R 598-1*
VE 4/8F 2300R 598-2
VE 4/8F 2300R 598-3*Rotary pump with:
- separate idle lever
- solenoid controlled load dependence (ALFB)
- post-heating and EGR cut-out microswitch
- air conditioning cut-out microswitch*
Pump timing obtained by 8mm
diameter TDC pin (Mot. 1079)Pump piston lift: 0.82 ± 0.04 mm
(the setting value is stamped on the load lever)
Injector holders
BOSCH KCA 17 S 42Tightening torque : 7 daN.m
Injectors BOSCH
DNOSD 302 Test: 130 bars
Maximum gap: 8 bars
Fuel filter
PURFLUXPriming pump
The filter is fitted with an electrical fuel heater
EGR solenoid valve Voltage: 12 volts
Resistance : 10 ± 5 Ω
Fuel pipes External diameter : 6 mm
Internal diameter : 2.5 mm
Length: 400 mm
Pre-heating unit
NAGARESWith pre-post-heating function and cold start
functions and fast idle solenoid
Heater plugs BOSCH Current: 15 A approximately after 8 seconds
heating
Tightening torque : 2 daN.m
+8
- 5
13-15

DIESEL EQUIPMENT
Description of the pump
13
99337R2
1Load dependence control solenoid valve (ALFB)
2Fuel shut off solenoid
3Microswitch for cutting post-heating and exhaust gas recirculation (EGR)
4Air conditioning microswitch
5Residual flow stop screw (anti-stall)
6Maximum engine speed stop screw (no adjustment may be made except at a Renault Injection Centre)
7Normal idle speed adjustment stop screw
8Fast idle speed adjustment stop screw
9Coded solenoid valve electronic unit
13-16

DIESEL EQUIPMENT
Pump
13
SPECIAL TOOLING REQUIRED
B.Vi. 868 Wrench for removing high
pressure pipe
Mot. 909-02 12 sided wrench for removing
injection pump mounting
Mot. 997 Socket for removing injector
holder
Mot. 1053 Pump pulley extractor
Mot. 1054
TDC pin
Mot. 1200 Pump pulley retaining tool
REMOVAL
Battery disconnected, remove:
- the suspended engine mounting housing (1),
- the injection pump pulley housing (2).
DI1302-199183R
Immobilise the engine using tool Mot. 1054. To do
this, turn the engine so that the camshaft sprocket
index is aligned with the timing cover reference
mark.
Disconnect the fuel supply pipe at the injection
pump end.
13-23

DIESEL EQUIPMENT
Pump
13
Fit the pump pulley retaining tool Mot. 1200. Remove:
- the fuel return pipe,
- the high pressure pipe using tool B.Vi. 868,
- the accelerator cable,
- the connections,
- the fast idle control,
- the four rear mounting bolts,
99333-1R
Remove the pump sprocket mounting nut.
Release the sprocket from the cone using tool
Mot. 1053 (fit two plastic clips before removing
the sprocket).
99333R
99336-1R
- the three injection pump mounting bolts; to
make removing the lower bolt easier, use tool
Mot. 909-02.
Remove the pump (retain the key from the drive
cone).
13-24

DIESEL EQUIPMENT
Pre-post-heating unit
13
DIAGRAM KEY
104Ignition switch
163Starter
171Air conditioning clutch
206Air conditioning trifunction pressure switch
247Instrument panel
251Bi-function coolant temperature switch
257Pre-heating unit
398EGR solenoid valve
412Fast idle solenoid valve (AC version)
597Engine fuse box
642AC / pre-heating separation diode
645Passenger compartment fuse box
680Pre-heating unit n° 1
681Pre-heating unit n° 2
682Pre-heating unit n° 3
683Pre-heating unit n° 4
711Diesel fuel pump
741Altimetric capsule
743Altimetric relay
777Power feed for fuse boxConnector (A)
+ Bat+ before ignition feed
Connector (B)
1Feed to heater plugs 1 and 3
2Feed to heater plugs 2 and 4
Connector (C)
A1 / S2Load dependence solenoid valve
control
A2 / PCLoad lever microswitch information
A3 / CTNCTN type sensor coolant temperature
information
B1/+APC+ after ignition feed
B2 / DEMStarter information
B3 / TemPre-heating warning light control (via
earth)
C1 / S1Not used
C2 / -Bat Earth
C3 / ClimFast idle solenoid valve control during
post-heating phase
92206-2R
IDENTIFICATION OF CONNECTORS
13-30