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110U2±01
A77915
±
FUELFUEL PRESSURE PULSATION DAMPER
ASSY(1AZ±FE)11±29
AVENSIS REPAIR MANUAL (RM1018E)
FUEL PRESSURE PULSATION DAMPER ASSY(1AZ±FE)
REPLACEMENT
1.DISCHARGE FUEL SYSTEM PRESSURE (See page 11±15)
2.REMOVE ENGINE COVER SUB±ASSY NO.1 (See page 10±26)
3.REMOVE AIR CLEANER CAP SUB±ASSY (See page 10±26)
4.DISCONNECT FUEL TUBE SUB±ASSY (See page 11±26)
SST09268±21010
5.REMOVE FUEL PRESSURE PULSATION DAMPERASSY
(a)Remove the 2 bolts, and then remove the fuel pressure pulsation damper.
6.INSTALL FUEL PRESSURE PULSATION DAMPER ASSY
(a)Apply a light coat of spindle oil or gasoline to a new O±ring, and instal\
l it to the fuel pressure pulsation damper.
(b)Install the fuel pressure pulsation damper with the 2 bolts. Torque: 9.0 N m (92 kgfcm, 80 in. lbf)
7.CONNECT FUEL TUBE SUB±ASSY (See page 11±26)
8. INSTALL AIR CLEANER CAP SUB±ASSY
9.CHECK FOR FUEL LEAKS (See page 11±19)
10.INSTALL ENGINE COVER SUB±ASSY NO.1 (See page 10±26)
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110TA±01
A78507
Mass Air Flow
Meter Connector
N´m (kgf´cm, ft´lbf) : Specified torqueEngine Cover Sub±assy
No. 1
7.0 (71, 62 in.
lbf)
Air Cleaner Cap
Sub±assy VSV
Connector
Fuel Vapor Feed Hose
Clip
Engine Room Cover Side
Radiator Support Opening Cover
Clip Retainer
x2
x4
1.5 (15, 13 in.lbf)
±
FUEL FUEL PUMP ASSY (1AZ±FSE)
11±49
AVENSIS REPAIR MANUAL (RM1018E)
FUEL PUMP ASSY (1AZ±FSE)
COMPONENTS
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A78508 Non±reusable part
N´m (kgf´cm, ft´lbf) : Specified torque Throttle Body Assy
Throttle Motor Connector
Throttle Body Gasket
Water By±pass Hose No. 2
Water By±pass Hose No. 1
9.0 (90, 80 in. lbf)
x4
x4
21 (210, 15)Throttle Body Bracket
8.4 (86, 74 in. lbf)
Ground Terminal
Wire Harness Protector
8.4 (86, 74 in.lbf)
11±50
±
FUEL FUEL PUMP ASSY (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
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A79577
N´m (kgf´cm, ft´lbf): Specified torque
Non±reusable part
Gasket
Gasket Fuel Tube Sub±assy
Fuel Pipe Clamp
Fuel Pressure Pulsation
Damper Assy
Fuel Pump Assy
Fuel Pump
Insulator
Fuel HoseFuel pipe Sub±assy No. 1
Fuel Injector Back±up Ring No. 1
25 (255, 18)
33 (331, 24)
9.0 (92, 80 in. lbf)
38 (388, 28 )
30 (306, 22)
Fuel Injector Back±up Ring No. 2
Fuel Injector Back±up Ring No. 3
O±ring
Engine Cover Bracket
±
FUEL FUEL PUMP ASSY (1AZ±FSE)
11±51
AVENSIS REPAIR MANUAL (RM1018E)
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110TB±01
A79569
A79570
SST
A79571
A79572
11±52
±
FUELFUEL PUMP ASSY(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
1.DISCHARGE FUEL SYSTEM PRESSURE (See page 11±30)
2.REMOVE RADIATOR SUPPORT OPENING COVER (See page 18±16)
3.REMOVE ENGINE COVER SUB±ASSY NO.1 (See page 10±44)
4.REMOVE AIR CLEANER CAP SUB±ASSY (See page 10±44) 5.REMOVE ENGINE COVER BRACKET
(a)Remove the bolt and the engine cover bracket.
6.REMOVE FUEL PRESSURE PULSATION DAMPERASSY
(a)Disconnect the fuel tube sub±assy. (See page 11±30)
(b) Using SST, remove the fuel pressure pulsation damper assy, the fuel tube sub±assy and the 2 gasket.
SST 09617±24011
7. REMOVE FUEL PIPE SUB±ASSY NO.1
(a) Remove the fuel hose.
(b) Clamp the union bolt on the fuel pump assy with a 21 mm wrench and remove the fuel pipe sub±assy No. 1 from the
fuel pump assy using a 19 mm union±nut wrench.
NOTICE:
Do not loosen the union bolt on the fuel pump assy. If it be-
come loose, replace the fuel pump assy with new fuel
pump assy.
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A79573
A79574
A79834
±
FUEL FUEL PUMP ASSY (1AZ±FSE)
11±53
AVENSIS REPAIR MANUAL (RM1018E)
(c) Remove the 2 bolts first, then remove the fuel pipe sub±
assy No. 1 from the fuel delivery pipe sub±assy.
NOTICE:
Be careful not to damage both the sealing surfaces of the
fuel delivery pipe and the fuel pump when removing the
fuel pipe No.1.
8. REMOVE FUEL PUMP ASSY
(a) Disconnect the fuel pump assy connector.
(b) Remove the 2 nuts and the fuel pump assy.
(c) Remove the fuel pump insulator.
9. INSTALL FUEL PUMP ASSY
(a) Turn the crankshaft and set the camshaft to the position
where the oil port of the camshaft can be seen from the
fuel pump mounting hole.
(b) From the fuel pump mounting hole of the cylinder head,
pour 35 to 45cc (2.14 to 2.75 cu in) engine oil into the cyl-
inder head.
(c) For more smooth rotation, apply engine oil on the cam lobe which can be seen from the fuel pump mounting hole
using fingers.
(d) Set a new fuel pump insulator and fuel pump assy with the 2 nuts.
Torque: 25 N m (255 kgf cm, 18 ftlbf)
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A79575
Fuel Injector
Back±up Ring No. 1
Fuel Injector
Back±up Ring No. 2
O±ring
Fuel injector
Back±up Ring No. 3
A79576
A79570
SST
11±54
±
FUEL FUEL PUMP ASSY (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
10. INSTALL FUEL PIPE SUB±ASSY NO.1
(a) Attach a new O±ring, fuel injector back±up ring No. 1, No. 2 and No. 3 to the fuel pipe sub±assy No.1.
(b) Apply a small amount of fuel on the O±ring and install the fuel pipe sub±assy No. 1 to the fuel pump assy and the
fuel delivery pipe sub±assy.
NOTICE:
Be careful not to damage both the sealing surfaces of the
fuel delivery pipe and the fuel pump when installing the fuel
pipe No.1.
(c) Tighten the nut by hand to attach the fuel pipe sub±assy No. 1 to the fuel pump assy.
(d) In order to secure the fuel pipe sub±assy No. 1 to the fuel delivery pipe sub±assy, tighten the 2 bolts to the specified
torque.
Torque: 9.0 N m (92 kgfcm, 80 in. lbf)
(e) Clamp the union bolt on the fuel pump assy with a 21 mm wrench and tighten the nut with the specified torque to se-
cure the fuel pipe sub±assy No. 1 to the fuel pump assy
using a 19 mm union±nut wrench.
Torque: 30 N m (306 kgf cm, 22 ftlbf)
11. INSTALL FUEL PRESSURE PULSATION DAMPER ASSY
(a) Install the fuel pulsation damper assy to the fuel pump assy after fitting new 2 gaskets and fuel tube sub±assy
between those assys.
(b) Using SST, install the fuel pressure pulsation damper assy to the fuel pump assy.
SST 09617±24011
Torque: 33 N m (331 kgf cm, 24 ftlbf)
(c) Connect the fuel tube sub±assy.
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±
FUELFUEL PUMP ASSY(1AZ±FSE)
11±55
AVENSIS REPAIR MANUAL (RM1018E)
12.INSTALL ENGINE COVER BRACKET
(a)Install the engine cover bracket with the bolt.
Torque: 38 N m (388 kgfcm, 28 ftlbf)
13.INSTALL AIR CLEANER CAP SUB±ASSY (See page 10±44)
14. CHECK FOR FUEL LEAKS
15. INSTALL ENGINE COVER SUB±ASSY NO.1 Torque: 7.0 N m (71 kgf cm, 62 in. lbf)
16. INSTALL RADIATOR SUPPORT OPENING COVER
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