Lexus RX300 (MCU15). Manual — part 187
B04395
Radiator Assembly
Radiator Reservoir Hose
Upper Radiator Hose
A/T Oil Cooler Hose
No.2 Electric Cooling
Fan Connector
Upper Radiator Support
Lower Radiator Hose
No.1 Electric Cooling
Fan Connector
Lower Radiator Support
No.1 Water Temperature
Switch Connector
Drain Plug
Radiator Cap
z O–Ring
–
COOLING
RADIATOR
CO–17
LEXUS RX300 (RM785E)
B04247
Radiator
Electric
Cooling Fan
x 6
B04248
Upper Tank
z O–Ring
Core
Lower Tank
No.1 Water Temperature Switch
Drain Plug
Oil Cooler
Pipe
Nut
z O–Ring
z O–Ring
z O–Ring
Radiator Cap
Plate Washer
z Non–reusable part
z O–Ring
CO–18
–
COOLING
RADIATOR
LEXUS RX300 (RM785E)
CO06J–05
B04232
–
COOLING
RADIATOR
CO–19
LEXUS RX300 (RM785E)
REMOVAL
HINT:
S
AT the time of installation, please refer to the following
items.
S
Start the engine, and check for coolant and A/T fluid
leaks.
S
Check the A/T fluid level (See page DI–144).
1.
REMOVE ENGINE UNDER COVER
2.
DRAIN ENGINE COOLANT
3.
REMOVE A/C CONDENSER (See page AC–55)
4.
REMOVE RADIATOR ASSEMBLY
(a)
Disconnect these connectors and hoses:
(1)
Disconnect the No.1 electric cooling fan connector.
(2)
Disconnect the No.2 electric cooling fan connector.
(3)
Disconnect the No.1 water temperature switch con-
nector.
(4)
Disconnect the upper radiator hose from radiator.
(5)
Disconnect the lower radiator hose from radiator.
(6)
Disconnect the radiator reservoir hose.
(7)
Disconnect the 2 oil cooler hoses from radiator.
(b)
Remove the 2 bolts and 2 upper radiator supports.
Torque: 12.8 N·m (130 kgf·cm, 9 ft·lbf)
(c)
Lift out the radiator assembly.
(d)
Remove the 2 lower radiator supports.
5.
REMOVE ELECTRIC COOLING FAN FROM RADIA-
TOR
Remove the 6 bolts and cooling fan.
Torque: 5.0 N·m (50 kgf·cm, 44 in.·lbf)
CO0II–02
B04250
CO1205
Dimension ”B”
Overhaul Handle
Stopper Bolt
SST
Part ”A”
Claw
B04235
Stopper
Bolt
SST
Tank
Lock
Plate
B04234
Tap
B04233
CO–20
–
COOLING
RADIATOR
LEXUS RX300 (RM785E)
DISASSEMBLY
1.
REMOVE NO.1 WATER TEMPERATURE SWITCH
(a)
Remove the No.1 water temperature switch.
(b)
Remove the O–ring.
2.
REMOVE DRAIN PLUG
(a)
Remove the drain plug.
(b)
Remove the O–ring.
3.
ASSEMBLE SST
SST
09230–01010
(a)
Install the claw to the overhaul handle, inserting it in the
hole in part ”A” as shown in the diagram.
(b)
While gripping the handle, adjust the stopper bolt so that
dimension ”B” shown in the diagram is 0.2 – 0.3 mm
(0.008 – 0.012 in.).
NOTICE:
If this adjustment is not done the claw may be damaged.
4.
UNCAULK LOCK PLATES
Using SST to release the caulking, squeeze the handle until
stopped by the stopper bolt.
SST
09230–01010
5.
REMOVE TANKS AND O–RINGS
Lightly tap the bracket of the radiator (or radiator inlet or outlet)
with a soft–faced hammer, and remove the tank and the O–ring.
6.
REMOVE OIL COOLER FROM LOWER TANK
(a)
Loosen the nut, and remove the cooler pipe.
Remove the 2 cooler pipes.
(b)
Remove the 2 nuts and plate washers.
(c)
Remove the oil cooler and 2 O–rings.
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