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. |
|
(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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