RM3660EC _51 Engine / Hybrid System _080739 NR Series ENGINE MECHANICAL _0391937 CYLINDER HEAD A

NR Series 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 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
Replacement of ECM	Perform Vehicle Identification Number (VIN) or frame number registration	DTC is stored	(201906,999999,_51,_080777,_0393969,RM100000001I1RD,)
	1. Reset memory 2. Deceleration sensor zero point calibration 3. CVT oil pressure calibration	· Large shift shock · Deterioration of fuel efficiency	(201906,999999,_52,_080728,_0392261,RM100000001HP98,)
	Code registration (Immobiliser system)	Engine start	See Service Bulletin for the registration method
Replacement of piston ring	Clear Heavy Knock History	-	(201906,999999,_51,_080777,_0393969,RM100000001I1RE,)
· Replacement of throttle body with motor assembly · Replacement of engine assembly · Replacement of cylinder head sub-assembly · Replacement of camshaft (for intake or exhaust camshaft) · Replacement of camshaft timing gear assembly · Replacement of camshaft timing exhaust gear assembly · Replacement of mass air flow meter sub-assembly · Replacement of fuel injector assembly · Replacement of fuel pump (for high pressure side) · Replacement of engine coolant temperature sensor · Replacement of spark plug · Replacement of ignition coil assembly · Gas leaks from exhaust system · Replacement of knock control sensor · Replacement of fuel delivery pipe (fuel pressure sensor)	Inspection After Repair	· Poor idle, etc. · Engine start function, etc.	(201906,999999,_51,_080777,_0393969,RM100000001I1RE,)
Replacement of starter assembly	Clear the number of starter operations	Stop and Start System	(201906,999999,_51,_080774,_0393362,RM100000001HXHH,)
Replacement of battery	Integrated current value initialization	Stop and Start System	(201906,999999,_51,_080774,_0393362,RM100000001HXHH,)
Replacement of continuously variable transaxle assembly	Air bleed the oil pump with motor assembly	Stop and Start System	(201906,999999,_51,_080774,_0393362,RM100000001HXHH,)
Replacement of continuously variable transaxle assembly	1. Reset memory 2. Deceleration sensor zero point calibration 3. CVT oil pressure calibration	· Large shift shock · Deterioration of fuel efficiency	(201906,999999,_52,_080728,_0392261,RM100000001HP98,)
Replacement of CVT fluid	Air bleed the oil pump with motor assembly	Stop and Start System	(201906,999999,_51,_080774,_0393362,RM100000001HXHH,)
Replacement of CVT fluid	ATF thermal degradation estimate reset	The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly	(201906,999999,_52,_080728,_0392261,RM100000001HP98,)
Tires	Rear television camera assembly optical axis (Back camera position setting)	Parking Assist Monitor System	(202304,999999,_56,_080754,_0596561,RM100000002AX0C,)
Suspension parts	Rear television camera assembly optical axis (Back camera position setting)	Parking Assist Monitor System	(202304,999999,_56,_080754,_0596561,RM100000002AX0C,)
Front wheel alignment adjustment	· Perform "Reset Memory" · Perform acceleration sensor zero point calibration and store system information memorization	· VSC is disabled or malfunctions · DTCs are stored · Slip indicator light illuminates · ABS warning light illuminates	(202304,999999,_54,_080770,_0599814,RM100000002BA8F,)

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.

Learning completes when vehicle is driven
Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Stop and Start System	Idle the engine for approximately 5 to 60 minutes or drive the vehicle until stop and start control is permitted	(201906,999999,_51,_080774,_0393362,RM100000001HXHC,)
Pre-collision System	Perform steering sensor zero point calibration	(202304,999999,_95,_139716,_0601175,RM100000002BFOE,)
Lane Tracing Assist System	Perform steering sensor zero point calibration	(202304,999999,_95,_139716,_0601175,RM100000002BFOE,)

PROCEDURE

Hide Display 13711 1.REMOVE INTAKE VALVE

1.813,1.219 1.51,0.365 1.51,0.365 1.802,0.771 true 2.604,1.969 3.063,1.958 3.063,1.958 3.094,1.615 true 1.365,0.198 1.823,0.396 0.458,0.198 10 false SST 3.073,1.979 3.385,2.177 0.313,0.198 10 false *a

*a	Wooden Block

Using SST and wooden blocks, compress the intake valve compression spring and remove the 8 valve spring retainer locks.

SST: 09202-70020
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 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.

Hide Display 13715 2.REMOVE EXHAUST VALVE

1.01,1.063 1.125,0.625 1.125,0.625 0.979,0.615 true 1.979,1.958 2.646,1.917 2.646,1.917 2.469,1.625 true 1.177,0.521 1.635,0.719 0.458,0.198 10 false SST 2.708,1.906 3.021,2.104 0.313,0.198 10 false *a

*a	Wooden Block

Using SST and wooden blocks, compress the exhaust valve compression spring and remove the 8 valve spring retainer locks.

SST: 09202-70020
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 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.

Hide Display 13711E 3.REMOVE INTAKE VALVE STEM OIL SEAL

Using needle-nose pliers, remove the 8 intake valve stem oil seals.

Hide Display 13715A 4.REMOVE EXHAUST VALVE STEM OIL SEAL

HINT:: Use the same procedure as for the intake side.

Hide Display 13734 5.REMOVE VALVE SPRING SEAT

Using compressed air and a magnet hand, remove the 16 valve spring seats by blowing air onto them.

Hide Display 11117E 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.

Using a 6 mm hexagon wrench, remove the 2 No. 1 straight screw plugs from the cylinder head sub-assembly.

Hide Display 11117F 7.REMOVE NO. 2 STRAIGHT SCREW PLUG

NOTICE:: If coolant leaks from a No. 2 straight screw plug or a plug is corroded, replace it.

Using a 10 mm hexagon wrench, remove the No. 2 straight screw plug and cylinder head screw plug gasket from the cylinder head sub-assembly.

Hide Display 11117G 8.REMOVE NO. 3 STRAIGHT SCREW PLUG

NOTICE:: If coolant leaks from a No. 3 straight screw plug or the plug is corroded, replace it.

Using a 14 mm hexagon wrench, remove the 2 No. 3 straight screw plugs and 2 No. 2 cylinder head screw plug gaskets from the cylinder head sub-assembly.