Lexus NX: Installation

INSTALLATION

PROCEDURE

1. INSTALL TIMING CHAIN COVER ASSEMBLY

(a) Apply a light coat of engine oil to the 3 new gaskets.

(b) Install the 3 gaskets to the stiffening crankcase assembly.

(c) Align the positions of the drive rotor spline and crankshaft timing sprocket as shown in the illustration.

*1

Drive Rotor Spline

*2

Crankshaft Timing Sprocket

(d) Apply a coating of seal packing to the timing chain cover assembly at the points shown in the illustration.

*a

7.0 mm (0.276 in.) or more

*b

3.0 mm (0.118 in.) or more

*c

13.0 mm (0.512 in.) or more

*d

28 mm (1.10 in.)

*e

25 mm (0.984 in.)

*f

26 mm (1.02 in.)

*g

3.0 mm (0.118 in.)

*h

2.5 to 3.5 mm (0.0984 to 0.138 in.)

*i

2.5 mm (0.0984 in.)

*j

5.0 mm (0.197 in.)

*k

7.0 mm (0.276 in.)

-

-

Seal packing:

Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent.

Seal Packing Application Specification:

Line Type and Area

Seal Packing Diameter

Application Area

Seal Packing Application Length

Coating Width

Dashed Line

2.5 to 3.5 mm (0.0984 to 0.138 in.)

2.5 mm (0.0984 in.)

-

-

A - A

2.5 to 3.5 mm (0.0984 to 0.138 in.)

2.5 mm (0.0984 in.)

-

-

B - B

5.0 mm (0.197 in.)

3.0 mm (0.118 in.)

28 mm (1.10 in.)

Width 7.0 mm (0.276 in.) or more

Thickness 3.0 mm (0.118 in.) or more

C - C

7.0 mm (0.276 in.)

5.0 mm (0.197 in.)

25 mm (0.984 in.)

Width 13 mm (0.512 in.) or more

Thickness 3.0 mm (0.118 in.) or more

D - D

5.0 mm (0.197 in.)

3.0 mm (0.118 in.)

26 mm (1.02 in.)

Width 7.0 mm (0.276 in.) or more

Thickness 3.0 mm (0.118 in.) or more

E

2.5 to 3.5 mm (0.0984 to 0.138 in.)

3.0 mm (0.118 in.)

-

-

NOTICE:

  • Using non-residue solvent, clean and remove any oil from the installation surface.
  • Install the part within 3 minutes and tighten the bolts within 10 minutes after applying seal packing.
  • Do not add engine oil for at least 2 hours after installation.
  • Do not start the engine within 2 hours after installation.

(e) Temporarily install the timing chain cover assembly with the 2 nuts and 17 bolts.

*1

Nut

-

-

*a

Types of nut and bolt

*b

Tightening Order

Bolt Length:

Item

Length

Thread Diameter

Bolt A

30 mm (1.18 in.)

8 mm (0.315 in.)

Bolt B

35 mm (1.38 in.)

10 mm (0.394 in.)

Bolt C

45 mm (1.77 in.)

8 mm (0.315 in.)

NOTICE:

Do not apply oil to bolts. Clean off if any oil is applied to bolts.

(f) Tighten the 17 bolts and 2 nuts in several steps, in the sequence shown in the illustration.

Torque:

Bolts A, C and nut :

21 N·m {214 kgf·cm, 15 ft·lbf}

Bolt B :

55 N·m {561 kgf·cm, 41 ft·lbf}

2. INSTALL ENGINE MOUNTING BRACKET RH

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3. INSTALL TIMING CHAIN COVER OIL SEAL

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4. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY

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5. INSTALL CRANKSHAFT PULLEY ASSEMBLY

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6. INSTALL CRANKSHAFT POSITION SENSOR

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7. INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY

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8. INSTALL IGNITION COIL ASSEMBLY

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9. INSTALL ENGINE WIRE

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10. INSTALL ENGINE AND TRANSAXLE

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