Lexus SC300 / Lexus SC400. Manual — part 511
INSTALLATION OF FUEL PUMP
(See Components on page
1.
INSTALL FUEL PUMP
(a) Install a new gasket to the pump set plate.
(b) Connect the fuel hose to the fuel pump bracket, and
install the fuel pump and bracket assembly with the
three nuts.
Torque: 5.4 N
⋅
m (55 kgf
⋅
cm, 48 in.
⋅
lbf)
(b) Install the fuel pump set plate with the eight bolts.
Torque: 3.9 N
⋅
m (40 kgf
⋅
cm, 35 in.
⋅
lbf)
2. INSTALL
PARTITION
COVER
Install the partition cover with butyl tape.
3.
INSTALL SEAT BACK AND CUSHION
4.
CONNECT FUEL PUMP CONNECTOR
5.
INSTALL LUGGAGE COMPARTMENT TRIM COVER
6.
INSTALL SPARE TIRE
7.
INSTALL LUGGAGE COMPARTMENT FLOOR MAT
8. CONNECT CABLE TO NEGATIVE TERMINAL OF
BATTERY
9.
START ENGINE, AND CHECK FOR FUEL LEAKS
FI–24
EFI SYSTEM – Fuel System (Fuel Pump)
Fuel Pressure Regulator
ON–VEHICLE INSPECTION
CHECK FUEL PRESSURE (See page
COMPONENTS FOR REMOVAL AND
INSTALLATION
REMOVAL OF FUEL PRESSURE
REGULATOR
1. DISCONNECT VACUUM SENSING HOSE FROM FUEL
PRESSURE REGULATOR
2.
DISCONNECT NO. 2 FUEL PIPE FROM FUEL PRESSURE
REGULATOR
Remove the union bolt and two gasket, and disconnect the
fuel pipe from the pressure regulator.
HINT:
•
Put a suitable container or shop towel under the
pressure regulator.
•
Slowly loosen the union bolt.
3.
REMOVE FUEL PRESSURE REGULATOR
(a) Remove the two bolts and pressure regulator.
(b) Remove the O–ring from the pressure regulator.
FI–24
–
EFI SYSTEM
Fuel System (Fuel Pressure Regulator)
INSTALLATION OF FUEL PRESSURE
REGULATOR
(See components on page
1. INSTALL FUEL PRESSURE REGULATOR AND FUEL
RETURN PIPE
(a) Apply
a
light coat of gasoline to a new O–ring, and install
it to the pressure regulator.
(b) Install the pressure regulator with the two bolts.
Torque: 8.8 N
⋅
m (90 kgf
⋅
cm, 78 in.
⋅
lbf)
2. CONNECT NO. 2 FUEL PIPE TO FUEL PRESSURE
REGULATOR
Connect the fuel pipe to the pressure regulator with new two
gaskets and the union bolt.
Torque: 27 N
⋅
m (280 kgf
⋅
cm, 20 ft
⋅
lbf)
3. CONNECT VACUUM SENSING HOSE TO FUEL
PRESSURE REGULATOR
4.
CHECK FOR FUEL LEAKS (See page
)
–
EFI SYSTEM
Fuel System (Fuel Pressure Regulator)
FI–25
Cold Start Injector
FI–25
– Fuel System (Cold Start Injector)
EFI SYSTEM
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