Lexus RX300 (MCU15). Service manual — part 428
B12568
N·m (kgf·cm, ft·lbf) : Specified torque
z
Non–reusable part
WU–TWC for Bank 2
z
Gasket
WU–TWC
(for Bank 2)
62 (630, 46)
56 (570, 41)
z
Gasket
Engine Under Cover
z
z
x 8
–
EMISSION CONTROL
WARM UP THREE–WAY CATALYTIC CONVERTER
(WU–TWC) SYSTEM
EC–9
LEXUS RX300 (RM785E)
EC022–02
EC–10
–
EMISSION CONTROL
THREE–WAY CATALYTIC CONVERTER (TWC)
SYSTEM
LEXUS RX300 (RM785E)
THREE–WAY CATALYTIC CONVERTER (TWC) SYSTEM
ON–VEHICLE INSPECTION
1.
INSPECT EXHAUST PIPE ASSEMBLY
(a)
Check the connections for looseness or damage.
(b)
Check the clamps for weakness, cracks or damage.
2.
INSPECT TWC
Check for dents or damage.
If any part of the protector is damaged or dented to the extent that it contacts the TWC, repair or replace
it.
3.
INSPECT TWC HEAT INSULATOR
(a)
Check the heat insulator for damage.
(b)
Check for adequate clearance between the catalytic converter and heat insulator.
EC023–08
B12569
N·m (kgf·cm, ft·lbf) : Specified torque
z
Non–reusable part
z
Gasket
z
Gasket
Center Exhaust Pipe
48 (490, 36)
48 (490, 36)
Ring
Ring
TWC
Heated Oxygen
Sensor Protector
Gasket
Heated Oxygen Sensor
(Bank 1 Sensor 1)
z
20 (200, 14)
Compression Spring
62 (630, 46)
Compression Spring
Compression Spring
–
EMISSION CONTROL
THREE–WAY CATALYTIC CONVERTER (TWC)
SYSTEM
EC–11
LEXUS RX300 (RM785E)
COMPONENTS
ENGINE MECHANICAL
CO/HC
EM–1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COMPRESSION
EM–3
. . . . . . . . . . . . . . . . . . . . . . . . .
VALVE CLEARANCE
EM–4
. . . . . . . . . . . . . . . . . . . . .
IGNITION TIMING
EM–10
. . . . . . . . . . . . . . . . . . . . . . .
IDLE SPEED
EM–12
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIMING BELT
EM–13
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER HEAD
EM–27
. . . . . . . . . . . . . . . . . . . . . . . .
ENGINE UNIT
EM–71
. . . . . . . . . . . . . . . . . . . . . . . . . . .
CYLINDER BLOCK
EM–88
. . . . . . . . . . . . . . . . . . . . . . .
EXHAUST SYSTEM
EM–117
. . . . . . . . . . . . . . . . . . . . . .
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