RM38N0EC _51 Engine / Hybrid System _111786 M20C-FKS, M20D-FKS ENGINE MECHANICAL _0499724 CYLINDER HEAD A

M20C-FKS, M20D-FKS ENGINE MECHANICAL 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 cylinder head gasket removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
: Even when not replacing the part, it is necessary to perform the specified necessary procedures afterinstallation. 1: Also necessary after performing a tire rotation. 2: It is not necessary to perform this procedure if the tire pressure warning valve and transmitters areinstalled to the same location. 3: When the starter assembly is replaced, "ST relay" must be also replaced. 4: The vehicle height changes because of suspension or tire replacement. 5: If transaxle compensation code read from ECM *6: If transaxle compensation code not read from ECM
Battery terminal is disconnected/reconnected	Reset back door close position	Power Back Door System	(202111,999999,_59,_111831,_0505274,RM100000001ZMEG,)
Replacement of ECM	Update ECU security key	Vehicle Control History (RoB) are stored	(202111,999999,_V1,_111780,_0504977,RM100000001ZKRX,)
	Perform Vehicle Identification Number (VIN) or frame number registration	DTC is output	(202303,999999,_51,_111785,_0504416,RM1000000029BFA,)
	Code registration	Engine start	See Service Bulletin for the registration method
	· Transfer transaxle compensation code5 · Reset transaxle compensation code6 · CVT oil pressure calibration · Perform road test to allow ECM to learn	· Large shift shock · Deterioration of fuel efficiency	Initialization:(202303,999999,_52,_111806,_0584611,RM1000000029R1M,) Registration:(202303,999999,_52,_111806,_0584611,RM1000000029R1L,)
· Replacement of throttle body with motor assembly · Cleaning the deposits from the throttle body with motor assembly · Replacement of cam timing control motor with EDU assembly* · Replacement of camshaft timing gear assembly* · Replacement of engine assembly · Replacement of cylinder head subassembly · Replacement of camshaft (for intake or exhaust camshaft) · Replacement of camshaft timing exhaust gear assembly · Replacement of port fuel injector assembly · Replacement of direct fuel injector assembly · Replacement of fuel pump assembly (for high pressure side) · Replacement of ignition coil assembly · Replacement of Spark plug · Replacement of EGR valve assembly · Gas leak from exhaust system is repaired	Inspection after repair	· Poor idle, etc. · Engine start function, etc.	(202303,999999,_51,_111785,_0504416,RM1000000029BFF,)
Replacement of Starter assembly*3	Clear the number of starteroperations	Stop and Start System	(202111,999999,_51,_111803,_0509671,RM1000000020651,)
Replacement of Battery	Integrated current valueinitialization
· Replacement of Continuously variabletransaxle assembly · Replacement of CVT Fluid	Air bleed the oil pump withmotor assembly
Replacement of continuously variable transaxle assembly	· Input transaxle compensation code into ECM · Perform reset memory · CVT oil pressure calibration · Perform road test to allow ECM to learn	· Large shift shock · Deterioration of fuel efficiency	(202303,999999,_52,_111806,_0584611,RM1000000029R1M,)for K121, K121F Initialization (202303,999999,_52,_111806,_0584611,RM1000000029R1L,)for K121, K121F Registration
Replacement of CVT fluid	ATF thermal degradation estimate reset	The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly	(202303,999999,_52,_111806,_0584611,RM1000000029R1M,)
Tires	· Initialization12 · Tire Position Identification12	Tire Pressure Warning System	Refer to Procedures Necessary When Replacing Parts (for Tire Pressure Warning System) table below
Suspension parts*4	Parking assist ECU initialization	Panoramic View Monitor System	(202409,999999,_56,_111825,_0500432,RM100000002O1F6,)
Suspension parts*4	Rear television camera assembly optical axis (Back camera position setting)	Parking Assist Monitor System	(202409,999999,_56,_111825,_0524148,RM100000002OUWG,)
Front wheel alignment adjustment	· Perform reset memory · Perform "Calibration"	· DTCs are stored · ABS warning light illuminates · Slip indicator light illuminates · Electronically controlled brake system does not operate correctly	(202203,999999,_54,_111814,_0500728,RM1000000022HI0,)
Front bumper assembly*	Front television camera view adjustment	Panoramic View Monitor System	(202409,999999,_56,_111825,_0500432,RM100000002O1F6,)

HINT:

When the cable is disconnected / reconnected to the battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

Items for which learning is completed by driving the vehicle
Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Lane Tracing Assist System	Drive the vehicle straight ahead at 15 km/h (10 mph) or more for 1 seconds or more.	(202111,999999,_95,_111850,_0502173,RM100000001Z92I,)
Pre-collision System		(202111,999999,_95,_111850,_0502173,RM100000001Z92I,)
Stop and Start System	Idle the engine for approximately 5 to 60minutes or drive the vehicle until stop andstart control is permitted	(202406,999999,_51,_111803,_0509671,RM100000002KOGF,)

Items for which learning is completed by operating the vehicle normally
Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Power Door Lock Control System · Back door opener	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.	(202111,999999,_58,_111830,_0505351,RM100000001ZMT3,)
Air Conditioning System	After the ignition switch is turned to ON, the servo motor standard position is recognized.	-

PROCEDURE

Hide Display 13711 1.REMOVE INTAKE VALVE

2.146,1.833 1.802,2 false 1.563,0.135 0.958,0.438 true 1.469,1.917 1.927,2.115 0.458,0.198 10 false SST 1.635,0.052 2.094,0.25 0.458,0.198 10 false SST

Using SST, compress each compression spring and remove the 8 valve spring retainer locks.

SST: 09202-70020 (09202-01010, 09202-01020)
09202-00021

HINT:: Arrange the removed parts in such a way that they can be reinstalled to their original locations.

Remove the 8 valve spring retainers, 8 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.

Hide Display 13715 2.REMOVE EXHAUST VALVE

1.542,1.75 1.729,1.958 false 1.885,0.156 2.323,0.24 true 1.771,1.865 2.229,2.063 0.458,0.198 10 false SST 1.573,0.073 2.031,0.271 0.458,0.198 10 false SST

Using SST, compress each compression spring and remove the 8 valve spring retainer locks.

SST: 09202-70020 (09202-01010, 09202-01020)
09202-00021

HINT:: Arrange the removed parts in such a way that they can be reinstalled to their original locations.

Remove the 8 valve spring retainers, 8 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.

Hide Display 3.REMOVE VALVE STEM OIL SEAL

Using needle-nose pliers, remove the 16 valve stem oil seals.

Hide Display 4.REMOVE VALVE SPRING SEAT

Using compressed air and a Magnet Hand, remove the 16 valve spring seats from the cylinder head sub-assembly by blowing air onto them.

Hide Display 11117E 5.REMOVE NO. 1 STRAIGHT SCREW PLUG

NOTICE:: If coolant leaks from a No. 1 straight screw plug or a plug is corroded, replace it.

Using a 6 mm hexagon socket wrench, remove the 4 No. 1 straight screw plugs from the cylinder head sub-assembly.

Hide Display 6.REMOVE STUD BOLT

NOTICE:: If a stud bolt is deformed or its threads are damaged, replace it.

Using an E8 "TORX" socket wrench, remove the 7 stud bolts.