Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Installation

INSTALLATION

CAUTION / NOTICE / HINT

CAUTION:

  • The engine assembly with transaxle is very heavy. Be sure to follow the procedure described in the repair manual, or the engine lifter may suddenly drop or the engine assembly with transaxle may fall off the engine lifter.
  • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

PROCEDURE

1. INSTALL CAMSHAFT TIMING GEAR BOLT (for Exhaust Side of Bank 1)

NOTICE:

There are different types of camshaft timing gear bolts. Make sure to check the identification mark to determine the tightening torque.

*a

Identification Mark Stamp

Identification Mark

Item

Identification Mark Stamp

Intake Side

Exhaust Side

Type A

A

B

Type B

D

G

(a) Make sure that the No. 1 cylinder is at TDC/compression.

HINT:

Check that the cutout of the camshaft timing gear assembly is at the top and align the timing mark (cutout) of the crankshaft pulley with the timing mark on the timing chain cover assembly.

(b) Apply engine oil to the areas of the camshaft timing gear bolt shown in the illustration.

(c) While holding the crankshaft pulley, temporarily install the camshaft timing gear bolt.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

NOTICE:

  • If the camshaft timing gear bolt has been struck or dropped, replace it.
  • If there is any abnormal resistance when temporarily installing the camshaft timing gear bolt, loosen it and make sure that the No. 1 cylinder is at TDC/compression, and then temporarily install the camshaft timing gear bolt again.

HINT:

Make sure that the flange part of the camshaft timing gear bolt contacts the entire circumference of the camshaft timing gear assembly.

(d) While holding the crankshaft pulley, tighten the camshaft timing gear bolt.

Torque:

Type A :

120 N·m {1224 kgf·cm, 89 ft·lbf}

Type B :

95 N·m {969 kgf·cm, 70 ft·lbf}

NOTICE:

Do not use an impact wrench.

2. INSTALL CAMSHAFT TIMING GEAR BOLT (for Intake Side of Bank 1)

NOTICE:

There are different types of camshaft timing gear bolts. Make sure to check the identification mark to determine the tightening torque.

*a

Identification Mark Stamp

Identification Mark

Item

Identification Mark Stamp

Intake Side

Exhaust Side

Type A

A

B

Type B

D

G

(a) Make sure that the No. 1 cylinder is at TDC/compression.

HINT:

Check that the cutout of the camshaft timing gear assembly is at the top and align the timing mark (cutout) of the crankshaft pulley with the timing mark on the timing chain cover assembly.

(b) Apply engine oil to the areas of the camshaft timing gear bolt shown in the illustration.

(c) While holding the crankshaft pulley, temporarily install the camshaft timing gear bolt.

Torque:

10 N·m {102 kgf·cm, 7 ft·lbf}

NOTICE:

  • If the camshaft timing gear bolt has been struck or dropped, replace it.
  • If there is any abnormal resistance when temporarily installing the camshaft timing gear bolt, loosen it and make sure that the No. 1 cylinder is at TDC/compression, and then temporarily install the camshaft timing gear bolt again.

HINT:

Make sure that the flange part of the camshaft timing gear bolt contacts the entire circumference of the camshaft timing gear assembly.

(d) While holding the crankshaft pulley, loosen the camshaft timing gear bolt 60 to 180°.

(e) Turn the crankshaft pulley counterclockwise 30 to 90°.

(f) While holding the crankshaft pulley, tighten the camshaft timing gear bolt.

Torque:

Type A :

120 N·m {1224 kgf·cm, 89 ft·lbf}

Type B :

95 N·m {969 kgf·cm, 70 ft·lbf}

NOTICE:

Do not use an impact wrench.

3. INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 1)

Click here

4. INSTALL CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 1)

Click here

5. INSTALL ENGINE ASSEMBLY WITH TRANSAXLE

Click here

    On-vehicle Inspection
    ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY Click here 2. INSPECT CAMSHAFT TIMING GEAR BOLT (a) for intake side: (1) Check the stroke of the plunger ...

    Removal
    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during cams ...

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