Removal [10/2018 - 07/2022]: Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY (for High Pressure)
Refer to PROCEDURE - Step 8
REMOVE NO. 1 FUEL VAPOR FEED HOSE
See step 28
REMOVE PURGE VALVE (PURGE VSV)
Refer to PROCEDURE - Step 1
REMOVE FUEL VAPOR FEED PIPE
See step 30
REMOVE NO. 2 FUEL VAPOR FEED PIPE
See step 53

DISCONNECT ENGINE WIRE

Disconnect the 7 connectors.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Detach the 2 clamps and disconnect the engine wire.

REMOVE IGNITION COIL ASSEMBLY
Refer to PROCEDURE - Step 2
REMOVE CAMSHAFT POSITION SENSOR (for Intake Side)
Refer to PROCEDURE - Step 2
REMOVE CAMSHAFT POSITION SENSOR (for Exhaust Side)
Refer to PROCEDURE - Step 3
REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY
Refer to PROCEDURE - Step 1
REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (EXHAUST CAMSHAFT TIMING GEAR BOLT ASSEMBLY)
Refer to PROCEDURE - Step 2
REMOVE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY
Refer to PROCEDURE - Step 2
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
Refer to PROCEDURE - Step 17
REMOVE SPARK PLUG TUBE GASKET
Refer to PROCEDURE - Step 18
REMOVE FUEL PUMP LIFTER GUIDE
Refer to PROCEDURE - Step 34

SET NO. 1 CYLINDER TO TDC (COMPRESSION)

Turn the crankshaft clockwise to align the timing mark (cutout) on the crankshaft pulley with the "0" timing mark on the No. 2 timing chain cover assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Paint Mark
*b	Timing Mark
*c	"0" Timing Mark

Check that the timing marks are positioned as shown in the illustration.
HINT:

If the timing marks are not positioned as shown in the illustration, turn the crankshaft clockwise and then align them again.
Place paint marks on the timing chain sub-assembly at points aligned with the timing marks on the camshaft timing gear assembly and camshaft timing exhaust gear assembly.

REMOVE STRAIGHT SCREW PLUG
Refer to PROCEDURE - Step 20

REMOVE CAMSHAFT

Rotate the crankshaft approximately 15° clockwise.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Approximately 15°

Rotate the crankshaft approximately 15° counterclockwise.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Approximately 15°

Align the pin hole of the No. 1 chain tensioner assembly with the pin hole of the chain tensioner slipper, and then insert the pin.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Pin
*b	Pin Hole (No. 1 Chain Tensioner Assembly Side)
*c	Pin Hole (Chain Tensioner Slipper Side)

Using the hexagonal portion of the exhaust camshaft sub-assembly, secure the exhaust camshaft sub-assembly.

NOTE:

Do not damage the camshaft housing sub-assembly, cylinder head sub-assembly and spark plug tube.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Hold

Remove the 2 bolts from the camshaft timing exhaust gear assembly.

Using the hexagonal portion of the intake camshaft sub-assembly, secure the intake camshaft sub-assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Hold
	Turn

NOTE:

Do not damage the camshaft housing sub-assembly, cylinder head sub-assembly and spark plug tube.
Do not disassemble the camshaft timing gear assembly.

Using a bi-hexagon socket wrench (10 mm), remove the bolt from the camshaft timing gear assembly.

Using the hexagonal portion of the exhaust camshaft sub-assembly, loosen and hold the timing chain sub-assembly while moving the exhaust camshaft sub-assembly in the direction shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Hold	-	-
	Turn	-	-

Move the camshaft timing gear assembly together with the camshaft timing exhaust gear assembly and timing chain sub-assembly toward the No. 2 timing chain cover assembly as shown in the illustration.

*1	Camshaft Timing Gear Assembly	*2	Camshaft Timing Exhaust Gear Assembly
*3	Timing Chain Sub-assembly	-	-
	Remove in this Direction	-	-

Remove the camshaft timing exhaust gear assembly from the timing chain sub-assembly.
Remove the camshaft timing gear assembly from the timing chain sub-assembly.

Secure the timing chain sub-assembly to the vehicle using rope, etc.

NOTE:

Do not drop the timing chain sub-assembly into the timing chain cover assembly.

Uniformly loosen and remove the 9 camshaft bearing cap bolts in the order shown in the illustration.

Fig 1: Camshaft Bearing Cap Bolts Loosening Sequence (9 Bolts)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Uniformly loosen and remove the 13 camshaft bearing cap bolts in the order shown in the illustration.

NOTE:

Uniformly loosen the camshaft bearing cap bolts while holding the camshaft horizontally.

*1	No. 1 Camshaft Bearing Cap
*2	No. 2 Camshaft Bearing Cap
*3	No. 3 Camshaft Bearing Cap
*4	No. 4 Camshaft Bearing Cap

Remove the No. 1 camshaft bearing cap, No. 2 camshaft bearing cap, 2 No. 3 camshaft bearing caps and No. 4 camshaft bearing cap.
HINT:

Arrange the removed parts so that they can be reinstalled in their original locations.

Remove the intake camshaft sub-assembly from the camshaft housing sub-assembly.

Remove the exhaust camshaft sub-assembly from the camshaft housing sub-assembly.