Lexus SC300 / Lexus SC400. Manual — part 704
10. REMOVE LH ENGINE WIRE COVER
Remove the two bolts and engine wire cover.
11. REMOVE VSV FOR EVAP SYSTEM
Remove the two bolts, and disconnect the VSV from cylinder
head and timing belt cover.
12. REMOVE RH NO.3 TIMING BELT COVER
Remove the three bolts and timing belt cover.
13. REMOVE LH NO.3 TIMING BELT COVER
(a) Remove the four mounting bolts.
(b) Disconnect
the cord grommet from the timing belt cover,
and remove the timing belt cover.
(c) Remove the cord grommet from the high–tension cord.
14. DISCONNECT RADIATOR HOSE FROM WATER INLET
15. REMOVE DRIVE BELT IDLER PULLEY
Remove the pulley bolt, cover plate and idler pulley.
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COOLIING SYSTEM
Electronically Controlled Hydraulic
Cooling Fan (Hydraulic Pump)
CO–29
15. REMOVE RH NO.2 TIMING BELT COVER
(a) Disconnect the cam position sensor connector from the
ignition coil bracket.
(b) Disconnect
the
cam position sensor wire from the clamp
on the timing belt cover.
(c) Remove the five mounting bolts.
(d) Disconnect the wire clamp from the timing belt cover,
and remove the timing belt cover and four gasket.
16. REMOVE LH NO.2 TIMING BELT COVER
(a) Disconnect
the
cam position sensor wire from the clamp
on the timing belt cover.
(b) Disconnect the cam position sensor connector.
(c) Remove the three mounting bolts.
(d) Disconnect the connector grommet from the timing belt
cover, and remove the timing belt cover and two
gaskets.
17. DISCONNECT PRESSURE AND SUCTION HOSES FROM
HYDRAULIC PUMP
18. REMOVE HYDRAULIC PUMP
(a) Disconnect the solenoid valve connector.
(b) Remove the two mounting bolts and two nuts.
(c) Disconnect the engine speed sensor wire clamp.
(d) Remove the hydraulic pump.
CO–30
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COOLIING SYSTEM
Electronically Controlled Hydraulic
Cooling Fan (Hydraulic Pump)
COMPONENTS FOR DISASSEMBLY AND
ASSEMBLY
DISASSEMBLY OF HYDRAULIC PUMP
1.
REMOVE SUCTION PORT UNION
(a) Remove the mounting bolt.
(b) Pull out the port union.
(c) Remove the O–ring from the port union.
2.
REMOVE WIRE CLAMP
(a) Disconnect the wire clamp from the rear housing.
(b) Remove the wire clamp from the read wire.
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COOLIING SYSTEM
Electronically Controlled Hydraulic
Cooling Fan (Hydraulic Pump)
CO–31
3.
MOUNT REAR HOUSING
HINT: Mount the parts in a vise as shown in the illustration.
4.
REMOVE SOLENOID VALVE
(a) Remove the solenoid valve.
(b) Remove the O–ring from the solenoid valve.
(c) Remove the O–ring from the rear housing.
5.
REMOVE PUMP PULLEY
(a) Using
SST,
remove the pulley nut by turning it clockwise.
SST 09278–54012
(b) Using SST, remove the pulley.
SST 09286–46011
6.
REMOVE FRONT HOUSING
(a) Remove the five mounting bolts.
CO–32
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COOLIING SYSTEM
Electronically Controlled Hydraulic
Cooling Fan (Hydraulic Pump)
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