2GR-FKS Engine - toyotareference.com

1 NEW FEATURES 2GR-FKS ENGINE692GR-FKS ENGINEJDESCRIPTIONThe 2GR-FKS Engine is a , 24-valve DOHC V6 Engine . This Engine uses a VVT-iW ( variable ValveTiming-intelligent Wide) VVT-i ( variable Valve timing -intelligent) system, DIS (Direct Ignition System),ACIS (Acoustic Control Induction System) and ETCS-i (Electronic Throttle Control System-intelligent).These control functions achieve improved Engine performance, fuel economy, and clean emissions." Engine Specifications AEngine Type2GR-FKSNo. of Cyls. & Arrangement6-Cylinder, V TypeValve Mechanism24-Valve DOHC, Chain Drive (with VVT-iW andVVT-i)Combustion ChamberPentroof TypeFlow of Intake and Exhaust GassesCross-FlowFuel SystemSFI D-4 SIgnition SystemDISD isplacementcm3 (cu. in.)3456 ( )Bore Strokemm (in.) ( )Compression : 1 Max. Output (SAE-NET)*207 kW @ 6000 rpm(278 HP @ 6000 rpm)Max. Torque (SAE-NET)*359 N m @ 4600 rpm(265 ft lbf @ 4600 rpm)Spark PlugTypeDENSOFK20 HBR8 (Iridium)Plug Gapmm (in.)

2 ( )Firing Order1 2 3 4 5 6 Fuel Octane Rating91 or higherEmissionRegulationTailpipeCaliforn iaULEVIII, SFTPE xcept CaliforniaTier2-Bin5, SFTPE vaporativeLEVII, ORVR*: Maximum output and torque rating is determined by revised SAE J1349 FEATURES 2GR-FKS ENGINE26L0EG111 Intake VVT-iW Operation RangeExhaust VVT-i Operation Range: Intake Valve Opening Angle: Exhaust Valve Opening AngleTDC105_47_0_ VVT-iW Operation Range25_BDC14_64_Exhaust VVT-i Operation Range70" Valve timing AIntakeOpen 33_ to 47_ BTDCC lose105_ to 25_ ABDCE xhaustOpen64_ to 14_ BBDCC lose0_ to ATDCNEW FEATURES 2GR-FKS ENGINE71 JFeatures of 2GR-FKS EngineThe 2GR-FKS Engine has achieved the following performance through the use of the items listed below.(1) High performance and reliability(2) Low noise and vibration(3) Lightweight and compact design(4) Good serviceability(5) Clean emission and fuel economyItem(1)(2)(3)(4)(5) Engine ProperA high-expansion cycle (Atkinson cycle) is fA steel laminate type cylinder head gasket is A taper squish shape is used for fA cylinder block sub-assembly made of aluminumalloy is used.

3 F The skirt portion of each piston has a resin coatingapplied to reduce fAn oil pan sub-assembly made of aluminum alloy isused. ff Valve MechanismA VVT-i ( variable Valve timing -intelligent)system is fA VVT-iW ( variable Valve timing -intelligentWide) system is fHydraulic lash adjusters are f A chain sub-assemblies and chain tensionerassemblies are used. fff Roller rocker arms are fLubrication SystemAn oil filter with a replaceable element is used. f Cooling SystemThe Engine coolant is used the TOYOTA GenuineSLLC (Super Long Life Coolant). f Intake andExhaust SystemA linkless type throttle body is used. ff An intake air surge tank assembly made of plastic isused. f A stainless steel exhaust manifold is used. f fAn ultra thin-wall, high-cell density ceramic typeTWC (Three-Way Catalytic converter) is used. fFuel SystemA Direct injection 4-stroke gasoline Engine Superiorversion (D-4S) system is fQuick connectors are used to connect the fuel hosewith the fuel pipe.

4 F (Continued)NEW FEATURES 2GR-FKS ENGINE72 Item(1)(2)(3)(4)(5)Ignition SystemThe DIS (Direct Ignition System) makes ignitiontiming adjustment ffLong-reach type iridium-tipped spark plugs ffCharging SystemA segment conductor type generator is f A generator pulley with a one way clutch is fStarting SystemA PS (Planetary reduction-Segment conductormotor) type starter is used. f Serpentine BeltDrive SystemA serpentine belt drive system is used. ff Engine ControlSystemMRE (Magnetic Resistance Element) type VVTsensors are The ETCS-i (Electronic Throttle ControlSystem-intelligent) is fAn ACIS (Acoustic Control Induction System) An evaporative emission control system is used. ff: Applicable : Not ApplicableNEW FEATURES 2GR-FKS ENGINE26L0EG01*2*1*3*6*5*4*173 JEngine Proper1. Cylinder Head CoverDA light-weight, resin cylinder head cover has been oil delivery pipe is installed inside the cylinder head cover sub-assemblies.

5 This ensures lubricationto the sliding parts of the roller rocker arms, improving reliability." Text in Illustration A*1 Oil Delivery Pipe*2 Cylinder Head Cover Sub-assemblyRH*3 Cylinder Head Cover Gasket*4No. 2 Cylinder Head Cover Gasket*5 Cylinder Head Cover Sub-assemblyLH*6 Oil Filler Cap Sub-assemblyNEW FEATURES 2GR-FKS ENGINE26L0EG02AA*a*1*c*b26L0EG68742. Cylinder Head GasketSteel-laminate type cylinder head gaskets are used. A shim is used around the cylinder bore of each gasketto help enhance sealing performance and durability." Text in Illustration A*1 Shim *afor Right Bank*bfor Left Bank*cA A Cross Section Engine Front NEW FEATURES 2GR-FKS ENGINE26L0EG03A*c*1*2*3A*d*a*4*d*5*b*c26 L0EG112*a*b753. Cylinder HeadDThe cylinder head sub-assemblies structure is simplified by separating the cam journal portion (camshafthousing sub-assembly) from the cylinder cylinder head sub-assemblies, which is made of aluminum, contains pentroof-type combustionchambers.

6 The spark plug is located in the center of the combustion chamber in order to improve theengine s antiknock taper squish combustion chamber is used to improve anti-knock performance and intake efficiency. Inaddition, Engine performance and fuel economy are port configuration is an efficient cross-flow type in which the intake ports face the inside of the V bankand the exhaust ports face the siamese type intake port is used. The port diameter gradually decreases toward the combustion chamberto optimize the airflow speed and intake pulsation." Text in Illustration A*1 Intake Valve*2 Spark Plug Hole*3 Exhaust Valve*4 Camshaft Housing*5 Taper Squish *aView from Bottom Side*bA A Cross Section*cIntake Side*dExhaust Side REFERENCE " Text in Illustration A*aSiamese Type*bIndependent TypeNEW FEATURES 2GR-FKS ENGINE26L0EG0460_* mm ( in.) mm ( in.)26L0EG05*a764. Cylinder BlockDThe cylinder block sub-assembly is made of aluminum alloy, thus making it cylinder block sub-assembly has a bank angle of 60_, a bank offset of mm ( in.)

7 And a borepitch of mm ( in.), resulting in a compact block (length and width) for its bosses for the 2 knock control sensors are located on the inside of the left and right banks." Text in Illustration A*aKnock Control Sensor Boss DA water passage has been provided between the cylinder bores. By allowing the Engine coolant to flowbetween the cylinder bores, this construction enables the temperature of the cylinder walls to be keptuniform." Text in Illustration A*aWater Passage NEW FEATURES 2GR-FKS ENGINE26L0EG06*1*2*a26L0EG08*1*a26L0EG69 26L0EG7077DA compact block has been achieved by producing the thin cast-iron liners and cylinder block sub-assemblyas a unit. It is not possible to rebore a block which uses this type of liners are a spiny-type, which have been manufactured so that their casting exterior forms a largeirregular surface in order to enhance the adhesion between the liners and the aluminum cylinder blocksub-assembly.

8 The enhanced adhesion helps improve heat dissipation, resulting in a lower overalltemperature and reduced heat deformation of the cylinder bores." Text in Illustration A*1 Liner*2 Cylinder Block Sub-assembly*aIrregularly Shaped Outer Casting Surface of Liner 5. PistonDThe pistons are made of aluminum top of the pistons use a taper squish shape to achieve fuel combustion piston skirt is coated with resin to reduce friction groove of the top ring is coated with alumite to ensure abrasion increasing the machining precision of the cylinder bore diameter in the cylinder block sub-assembly,only one size piston is required." Text in Illustration A*1 Front Mark *aTaper Squish Shape Resin CoatingAlumite CoatingNEW FEATURES 2GR-FKS ENGINE26L0EG09*1*3*2*3*a*4786. Connecting Rod and Connecting Rod BearingDConnecting rod sub-assemblies that have been forged for high strength are used for weight pins are used at the mating surfaces of the connecting rod caps to minimize the shifting of theconnecting rod caps during plastic region tightening bolts (connecting rod bolts) are used on the connecting rodsub-assemblies for a lighter bearings are used for the connecting rod connecting rod bearings are reduced in width to reduce friction.

9 The bearing lining surface is coatedwith resin to improve wear and seizure resistance." Text in Illustration A*1 Connecting Rod Sub-assembly*2 Knock Pin*3 Plastic Region Tightening Bolt (Connecting Rod Bolt)*4 Connecting Rod Bearing*aResin Coating NEW FEATURES 2GR-FKS ENGINE26L0EG10*5*1*2*3*426L0EG68797. CrankshaftDA crankshaft made of forged steel, which excels in rigidity and wear resistance, is crankshaft has 4 main bearing journals and 5 balance weights." Text in Illustration A*1No. 1 Bearing Journal*2No. 2 Bearing Journal*3No. 3 Bearing Journal*4No. 4 Bearing Journal*5 Balance Weight Engine Front NEW FEATURES 2GR-FKS ENGINE26L0EG11*1*2*3*a*6*4*5808. Crankshaft Bearing and Crankshaft Bearing CapDThe crankshaft bearings are made of aluminum crankshaft bearings are reduced in width to reduce bearing lining surface is coated with resin to improve wear and seizure upper crankshaft bearings have an oil groove around the inside crankshaft bearing caps are tightened using 4 plastic region tightening bolts (crankshaft bearing capset bolts) for each journal.

10 In addition, each cap is tightened laterally to improve its reliability." Text in Illustration A*1 Plastic Region Tightening Bolt (Crankshaft Bearing Cap Set Bolt)*2 Crankshaft Bearing Cap*3 Seal Washer*4 Resin Coating*5 Lower Crankshaft Bearing*6 Upper Crankshaft Bearing*aOil Groove NEW FEATURES 2GR-FKS ENGINE26L0EG12*126L0EG13*3*1*2819. Crankshaft PulleyThe rigidity of the crankshaft pulley with its built-in torsional damper rubber reduces noise." Text in Illustration A*1 Torsional Damper Rubber 10. Oil PanDThe oil pan sub-assembly is made of aluminum No. 2 oil pan sub-assembly is made of oil pan sub-assembly is secured to the cylinder block sub-assembly and the transmission housing toincrease rigidity." Text in Illustration A*1 Oil Filter Case*2No. 2 Oil Pan Sub-assembly*3 Oil Pan Sub-assembly NEW FEATURES 2GR-FKS ENGINE26L0EG113 Valve LiftRetard Advance RetardLock PositionExhaustCrank Angle (CA)IntakeVVT-iW (Intake) + VVT-i (Exhaust)Dual VVT-i (Reference)RetardAdvanceValve LiftCrank Angle (CA)82 JVALVE MECHANISM1.