Removal [08/2023 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.
- REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY
Refer to REMOVAL [08/2023 - ]
- RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM (for PHEV Model)
Refer to PROCEDURE - Step 2
- DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY (for PHEV Model)
Refer to PROCEDURE - Step 2
- DISCONNECT NO. 1 COOLER REFRIGERANT SUCTION HOSE (for PHEV Model)
Refer to PROCEDURE - Step 3 - REMOVE AIR CONDITIONING HOSE AND ACCESSORY (for PHEV Model)
Refer to PROCEDURE - Step 9 - DISCONNECT LIQUID TUBE SUB-ASSEMBLY A (for PHEV Model)
Refer to PROCEDURE - Step 6 - REMOVE EARTH BOLT CAP
Refer to PROCEDURE - Step 3
- DISCONNECT NO. 2 EARTH WIRE
Refer to PROCEDURE - Step 4
- DISCONNECT 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 5 - REMOVE CAM TIMING OIL CONTROL SOLENOID O-RING
Refer to PROCEDURE - Step 6 - REMOVE CAMSHAFT TIMING VALVE ASSEMBLY
Refer to PROCEDURE - Step 11 - REMOVE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY
Refer to PROCEDURE - Step 8 - REMOVE CAM TIMING CONTROL MOTOR O-RING
Refer to PROCEDURE - Step 9
- REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY
Refer to PROCEDURE - Step 30 - REMOVE SPARK PLUG TUBE GASKET
Refer to PROCEDURE - Step 31 - REMOVE FUEL PUMP LIFTER GUIDE
Refer to PROCEDURE - Step 47 - SET NO. 1 CYLINDER TO TDC (COMPRESSION)
*a Paint Mark *b Timing Mark *c "0" Timing Mark - - - Turn the crankshaft clockwise to align the timing mark (cutout) on the crankshaft pulley assembly with the "0" timing mark on the No. 2 timing chain cover assembly.
- Check that the timing marks are positioned as shown in the illustration.
- 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 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 33 - REMOVE CAMSHAFT
*a Approximately 15° *b Pin *c Pin Hole (No. 1 Chain Tensioner Assembly Side) *d Pin Hole (Chain Tensioner Slipper Side) *e Hold - - Turn - - - Rotate the crankshaft approximately 15° clockwise.
- Rotate the crankshaft approximately 15° counterclockwise.
- 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.
- Using the hexagonal portion of the No. 2 camshaft, hold the No. 2 camshaft.NOTE:
Do not damage the camshaft housing sub-assembly, cylinder head sub-assembly and spark plug tube.
- Using a 5 mm hexagon socket wrench, remove the 2 bolts from the camshaft timing exhaust gear assembly.
- Using the hexagonal portion of the camshaft, hold the camshaft.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 SST and a 10 mm bi-hexagon socket wrench, remove the bolt from the camshaft timing gear assembly.
- SST: 09961-01270
*a Hold - - Turn - - - Using the hexagonal portion of the No. 2 camshaft, loosen and hold the chain sub-assembly while moving the No. 2 camshaft in the direction shown in the illustration.NOTE:
Do not damage the camshaft housing sub-assembly, cylinder head sub-assembly and spark plug tube.
- Using the hexagonal portion of the No. 2 camshaft, loosen and hold the chain sub-assembly while moving the No. 2 camshaft in the direction shown in the illustration.
*1 Camshaft Timing Gear Assembly *2 Camshaft Timing Exhaust Gear Assembly *3 Chain Sub-assembly - - Remove in this Direction - - - Move the camshaft timing gear assembly together with the camshaft timing exhaust gear assembly and chain sub-assembly toward the No. 2 timing chain cover assembly as shown in the illustration.
- Remove the camshaft timing exhaust gear assembly from the chain sub-assembly.
- Remove the camshaft timing gear assembly from the chain sub-assembly.
*1 No. 1 Camshaft Bearing Cap *2 No. 2 Camshaft Bearing Cap *3 No. 3 Camshaft Bearing Cap *4 No. 4 Camshaft Bearing Cap - Secure the chain sub-assembly to the vehicle using rope, etc.NOTE:
Do not drop the chain sub-assembly into the No. 2 timing chain cover assembly.
- Uniformly loosen and remove the 8 bolts in the order shown in the illustration.
- Uniformly loosen and remove the 14 bolts in the order shown in the illustration.NOTE:
Uniformly loosen the bolts while holding the camshaft horizontally.
- Remove the No. 1 camshaft bearing cap, No. 2 camshaft bearing cap, 2 No. 3 camshaft bearing caps and No. 4 camshaft bearing cap.
- Remove the camshaft from the camshaft housing sub-assembly.
- Remove the No. 2 camshaft from the camshaft housing sub-assembly.
- Secure the chain sub-assembly to the vehicle using rope, etc.