Lexus ES: Disassembly
DISASSEMBLY
CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during cylinder head removal/installation are shown below.
Necessary Procedure After Parts Removed/Installed/Replaced| Replaced Part or Performed Procedure | Necessary Procedure | Effect/Inoperative Function when Necessary Procedure not Performed | Link |
|---|---|---|---|
| Auxiliary battery terminal is disconnected/reconnected | Perform steering sensor zero point calibration | Lane control system (for HV Model) | |
| Pre-collision system (for HV Model) | |||
| Parking support brake system (for HV Model)* | |||
| Lighting system (for HV Model) | |||
| Memorize steering angle neutral point | Parking assist monitor system (for HV Model) | | |
| Panoramic view monitor system (for HV Model) | | ||
| Initialize power trunk lid system | Power trunk lid system (for HV Model) | | |
| Replacement of ECM | Perform Vehicle Identification Number (VIN) registration | MIL illuminates | |
| Inspection After Repair |
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| Replacement of inverter with converter assembly | Resolver learning |
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| Replacement of hybrid vehicle transaxle assembly |
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| Front wheel alignment adjustment |
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| Suspension, tires, etc.*1 | Rear television camera assembly optical axis (Back camera position setting) | Parking assist monitor system (for HV Model) | |
| Replacement of front bumper assembly | Front television camera view adjustment | Panoramic view monitor system (for HV Model) | |
| Suspension, tires, etc.*1 |
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| Replacement of headlight ECU sub-assembly LH |
| Lighting system (for HV Model) | |
| Suspension, tires, etc.*1 | Perform headlight ECU sub-assembly LH initialization*2 |
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*: When performing learning using the Techstream.
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- *1: If the vehicle height has changed due to suspension or tire replacement.
- *2: for LED type turn signal light
NOTICE:
- After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System)
- After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Navigation System)
PROCEDURE
1. REMOVE INTAKE VALVE
| (a) Using SST, compress each intake valve compression spring and remove the 8 valve spring retainer locks. SST: 09202-70020 09202-01010 09202-01020 SST: 09202-00021 HINT: Arrange the removed parts in such a way that they can be reinstalled to their original locations. |
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(b) Remove the 8 valve spring retainers, 8 intake valve compression springs and 8 intake valves from the cylinder head sub-assembly.
HINT:
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
2. REMOVE EXHAUST VALVE
| (a) Using SST, compress each exhaust valve compression spring and remove the 8 valve spring retainer locks. SST: 09202-70020 09202-01010 09202-01020 SST: 09202-00021 HINT: Arrange the removed parts in such a way that they can be reinstalled to their original locations. |
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(b) Remove the 8 valve spring retainers, 8 exhaust valve compression springs and 8 exhaust valves from the cylinder head sub-assembly.
HINT:
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
3. REMOVE VALVE STEM OIL SEAL
| (a) Using needle-nose pliers, remove the 16 valve stem oil seals. |
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4. REMOVE INTAKE VALVE SPRING SEAT
| (a) Using compressed air and a Magnet Hand, remove the 8 intake valve spring seats from the cylinder head sub-assembly by blowing air onto them. |
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5. REMOVE EXHAUST VALVE SPRING SEAT
(a) Using compressed air and a Magnet Hand, remove the 8 exhaust valve spring seats from the cylinder head sub-assembly by blowing air onto them.
6. REMOVE NO. 1 STRAIGHT SCREW PLUG
NOTICE:
If coolant leaks from a No. 1 straight screw plug or a plug is corroded, replace it.
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(a) Using a 6 mm hexagon socket wrench, remove the 4 No. 1 straight screw plugs from the cylinder head sub-assembly.
7. REMOVE STUD BOLT
NOTICE:
If a stud bolt is deformed or its threads are damaged, replace it.
| (a) Using an E8 "TORX" socket wrench, remove the 7 stud bolts. |
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READ NEXT:
Inspection
INSPECTION PROCEDURE 1. INSPECT CYLINDER HEAD SUB-ASSEMBLY (a) Using a precision straightedge and feeler gauge, measure the warpage of the contact surfaces where the cylinder head sub-assembly contact
Replacement
REPLACEMENT PROCEDURE 1. REPLACE INTAKE VALVE GUIDE BUSH (a) Heat the cylinder head sub-assembly to between 80 and 100°C (176 and 212°F). (b) Place the cylinder head sub-assembly on wooden blocks. C
Reassembly
REASSEMBLY PROCEDURE 1. INSTALL SPARK PLUG TUBE HINT: When using a new cylinder head sub-assembly, the spark plug tubes must be replaced. (a) Apply adhesive to a new spark plug tube as shown in the
SEE MORE:
On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT BRAKE FLUID LEVEL IN RESERVOIR (a) Check the fluid level. Brake Fluid: SAE J1703 or FMVSS No. 116 DOT3 SAE J1704 or FMVSS No. 116 DOT4 NOTICE: If using a dropper to adjust the fluid amount, make sure that the dropper has not been used with mineral oils,
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 engine assembly removal/installation are shown below. Necessary Procedure After Parts Removed/Installed/
