Lexus ES manuals

Lexus ES: Repair

REPAIR

PROCEDURE

1. REPAIR EXHAUST VALVE SEAT

NOTICE:

  • While repairing the exhaust valve seat, make sure to constantly check the valve seat width and valve seating position.
  • Release the cutter gradually to make the exhaust valve seat smooth.

(a) Using 45° cutters, correct the exhaust valve seat so that the exhaust valve contacts the entire circumference of the exhaust valve seat. The contact should be in the center of the exhaust valve seat, and the exhaust valve seat width should be as specified around the entire circumference of the exhaust valve seat.

*a

Width

-

-

Standard Width:

1.3 to 1.7 mm (0.0512 to 0.0669 in.)

(b) Hand lap the exhaust valve and exhaust valve seat with an abrasive compound.

(c) Check the exhaust valve seating position.

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 Cylinder Head Gasket

 Components

COMPONENTS ILLUSTRATION *A Type A - - *1 EXHAUST MANIFOLD (TWC: Front Catalyst) *2 NO. 1 EXHAUST MANIFOLD HEAT INSULATOR *3 MANIFOLD STAY *4 EXHAUST MANIFOLD TO HEAD GASK

 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 cyl

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 Removal

REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. REMOVE OUTER MIRROR (a) Apply protective tape to the areas shown in the illustration. Protective Tape Move in this Direction (b)

 Automatic High Beam System (B124B)

DESCRIPTION The main body ECU (multiplex network body ECU) determines the status of the automatic high beam system based on the automatic high beam system signal from the forward recognition camera. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from B124B Au

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