CYLINDER HEAD 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 engine unit 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	Memorize steering angle neutral point	Lane departure alert system (w/ Steering Control)	Click here
		Intelligent clearance sonar system*1
		Simple advanced parking guidance system*1
		Pre-collision system
		Adaptive high beam system
		Parking assist monitor system	Click here
	Initialize back door lock	Power door lock control system	Click here
Replacement of inverter with converter assembly	Resolver learning	DTCs are stored Slight vibration at a vehicle speed of 5 km/h (3 mph) or less Shock or vibration during acceleration	Click here
Replacement of ECM	Perform Vehicle Identification Number (VIN) registration (w/ Canister Pump Module)	MIL comes on	Click here
Replacement of ECM	Perform Vehicle Identification Number (VIN) or frame number registration (w/o Canister Pump Module)	MIL comes on	Click here
for SFI system (w/ Canister Pump Module) Replacement of throttle body assembly Replacement of cylinder head sub-assembly Replacement of camshaft (for intake or exhaust camshaft) Replacement of camshaft timing gear assembly Replacement of fuel injector assembly Replacement of spark plug Replacement of ignition coil assembly Replacement of EGR valve assembly Gas leak from exhaust system is repaired Replacement of knock control sensor	Inspection After Repair	Poor idle, etc. Engine start function, etc.	Click here
for SFI system (w/o Canister Pump Module) Replacement of throttle body assembly Replacement of cylinder head sub-assembly Replacement of camshaft (for intake or exhaust camshaft) Replacement of camshaft timing gear assembly Replacement of fuel injector assembly Replacement of spark plug Replacement of ignition coil assembly Replacement of EGR valve assembly Gas leak from exhaust system is repaired Replacement of knock control sensor	Inspection After Repair	Poor idle, etc. Engine start function, etc.	Click here
Suspension, tires, etc. (The vehicle height changes because of suspension or tire replacement)	Ultrasonic sensor detection angle Ultrasonic sensor detection angle registration	Intelligent clearance sonar system Simple advanced parking guidance system	Click here
	Rear television camera assembly optical axis (Back camera position setting)	Parking assist monitor system	Click here
	Initialize No. 1 headlight ECU sub-assembly LH	Automatic headlight beam level control system Adaptive high beam system*2	Click here
Front wheel alignment adjustment	Clear zero point calibration data. Perform yaw rate and acceleration sensor zero point calibration.	DTCs are stored ABS warning light illuminates Brake warning light/yellow (minor malfunction) illuminates Slip indicator light illuminates VSC disabled or malfunctions	Click here
Replacement of hybrid vehicle transaxle assembly	Resolver learning Initialize resolver	DTCs are stored Slight vibration at a vehicle speed of 5 km/h (3 mph) or less Shock or vibration during acceleration	Click here

*1: When performing learning using the GTS.

Click here

*2: w/ Adaptive High Beam System

PROCEDURE

REMOVE INTAKE VALVE
1. *a Wooden Block
  
  Using SST and wooden blocks, compress the inner compression spring and remove the 8 valve spring retainer locks.
  
  SST
  
  09202-70020 ( 09202-01010, 09202-01020 )
  
  09202-00021
  
  Tech Tips
  
  Arrange the removed parts in such a way that they can be reinstalled to their original locations.
2. Remove the 8 valve spring retainers, 8 inner compression springs and 8 intake valves from the cylinder head sub-assembly.
  
  Tech Tips
  
  Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE EXHAUST VALVE
1. *a Wooden Block
  
  Using SST and wooden blocks, compress the inner compression spring and remove the 8 valve spring retainer locks.
  
  SST
  
  09202-70020 ( 09202-01010, 09202-01020 )
  
  09202-00021
  
  Tech Tips
  
  Arrange the removed parts in such a way that they can be reinstalled to their original locations.
2. Remove the 8 valve spring retainers, 8 inner compression springs and 8 exhaust valves from the cylinder head sub-assembly.
  
  Tech Tips
  
  Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE VALVE STEM OIL SEAL
1. Using needle-nose pliers, remove the 16 valve stem oil seals.
REMOVE VALVE SPRING SEAT
1. Using compressed air and a Magnet Hand, remove the 16 valve spring seats from the cylinder head sub-assembly by blowing air onto them.
REMOVE NO. 2 STRAIGHT SCREW PLUG
Note

If coolant leaks from the No. 2 straight screw plug or the No. 2 straight screw plug is corroded, replace it.
1. Using a 10 mm straight hexagon wrench, remove the 3 No. 2 straight screw plugs and 3 gaskets from the cylinder head sub-assembly.