Lexus NX: Repair
REPAIR
PROCEDURE
1. REPAIR INTAKE VALVE SEAT
NOTICE:
- Repair the seat while checking the seating position.
- Keep the lip free of foreign matter.
- Take off the cutter gradually to make the intake valve seat smooth.
| (a) Using a 45° cutter, resurface the valve seat so that the valve seat width is more than the specification. |
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| (b) Using 30° and 60° cutters, correct the valve seat so that the valve contacts the entire circumference of the seat. The contact should be in the center of the valve seat, and the valve seat width should be maintained within the specified range around the entire circumference of the seat. Standard width: 1.0 to 1.4 mm (0.0394 to 0.0551 in.) |
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(c) Hand-lap the valve and valve seat with an abrasive compound.
(d) Check the valve seating position.
2. REPAIR EXHAUST VALVE SEAT
NOTICE:
- Repair the seat while checking the seating position.
- Keep the lip free of foreign matter.
- Take off the cutter gradually to make the exhaust valve seat smooth.
| (a) Using a 45° cutter, resurface the valve seat so that the valve seat width is more than the specification. |
|
| (b) Using 30° and 75° cutters, correct the valve seat so that the valve contacts the entire circumference of the seat. The contact should be in the center of the valve seat, and the valve seat width should be maintained within the specified range around the entire circumference of the seat. Standard width: 1.2 to 1.6 mm (0.0472 to 0.0630 in.) |
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(c) Hand-lap the valve and valve seat with an abrasive compound.
(d) Check the valve seating position.
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Components
COMPONENTS ILLUSTRATION *1 EGR COOLER ASSEMBLY *2 EGR VALVE ASSEMBLY *3 FUEL DELIVERY PIPE *4 INJECTOR VIBRATION INSULATOR *5 INTAKE MANIFOLD *6 NO. 1 EGR PIPE *7 N
Removal
REMOVAL PROCEDURE 1. REMOVE TIMING CHAIN COVER ASSEMBLY Click here 2. REMOVE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY Click here 3. REMOVE THROTTLE WITH MOTOR BODY ASSEMBLY Click here 4. REMOVE W
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Installation
INSTALLATION CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. PROCEDURE 1. INSTALL BENCH TYPE REAR SEAT CUSHION COVER (REAR SEAT CUSHION HEATER) HINT:
When installing the seat cover, refer to the precautions in order to prevent wrinkles from
Installation
INSTALLATION PROCEDURE 1. INSTALL FRONT SEAT INNER BELT ASSEMBLY LH (a) Install the front seat belt anchor plate. (b) Install the front seat inner belt assembly LH with the nut. Torque: 42 N·m {428 kgf·cm, 31 ft·lbf} NOTICE: Do not allow the anchor part of the front seat inner belt assembly L
