ENGINE UNIT


  1. OUTLINE


    1. The 1KR-FE engine is a 1.0-liter, 12-valve DOHC, in-line 3-cylinder gasoline engine.

    2. This engine uses the Direct Ignition System (DIS), Variable Valve Timing-intelligent (VVT-i) system and Electronic Throttle Control System-intelligent (ETCS-i). It has been developed to realize high performance, quietness, fuel economy and clean emission.

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  2. SPECIFICATION

    Engine Type 1KR-FE
    No. of Cyls. and Arrangement 3-cylinder, In-line
    Valve Mechanism 12-valve DOHC, Chain Drive (with VVT-i)
    Combustion Chamber Pentroof Type
    Flow of Intake and Exhaust Gasses Cross-Flow
    Fuel System SFI
    Ignition System DIS
    Displacement

    998 cm3(60.9 cu. in.)
    Bore x Stroke 71.0 mm X 84.0 mm (2.8 in. X 3.3 in.)
    Compression Ratio 11.0:1
    Max. Output (EEC) 51 Kw @ 6000 rpm
    Max. Torque (EEC) 93 N*m @ 3600 rpm
    Valve Timing Intake Open 40°BTDC to 5°ATDC
    Closed 10°ABDC to 55°ABDC
    Exhaust Open 40°BBDC
    Closed 2°ATDC
    Firing Order 1 - 2 - 3
    Fuel Unleaded Gasoline
    Research Octane Number (RON) 95 or higher
    Oil Grade

    • API grade SL and energy-conserving

    • API grade SM and energy-conserving

    • ILSAC multigrade engine oil
    Emission Regulation EURO 5
    Engine Service Mass* (Reference) 65 kg (143 lb)

    • *: Weight shows the figure with oil and water fully filled.

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  3. MAIN FEATURES


    1. The 1KR-FE engine has achieved the following performance through the adoption 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 economy

        Item (1) (2) (3) (4) (5)
        Engine Proper A cylinder block sub-assembly made of aluminum alloy is used. - - ○ - -
        Spiny type liners are used. ○ - - - -
        An offset crankshaft is used. ○ ○ - - ○
        Cylinder block water jacket spacer is used. ○ - - - -
        A taper squish shape is used for the top of the pistons. ○ - - - ○
        Low Friction Resin with Alumina (LFA) coating is used on the sliding surface of the piston. ○ - - - ○
        Low-tension piston rings are used. ○ - - - ○
        Oil strainer made of plastic is used. - - ○ - -
        Valve Mechanism The Variable Valve Timing-intelligent (VVT-i) system is used. ○ - - - ○
        A shimless type valve lifters are used. - - ○ - -
        A timing chain (chain sub-assembly) and No. 1 Chain Tensioner Assemblies are used. ○ - - ○ -
        Intake and Exhaust System An intake manifold made of plastic is used. - - ○ - -
        A linkless type throttle with motor body assembly is used. - - ○ ○ -
        A stainless steel exhaust manifold is used. - - ○ - -
        Fuel System 4-hole type fuel injector assemblies are used. ○ - - - ○
        A fuel delivery pipe made of plastic is used. - - ○ - -
        A fuel returnless system is used. - - ○ ○ ○
        A multi-layer plastic fuel tank assembly is used. - - ○ - ○
        Quick connectors are used to connect the fuel hoses and fuel pipes. - - - ○ -
        Ignition System A Direct Ignition System (DIS) is used. ○ - - ○ ○
        The long-reach type spark plugs are used. ○ - - - -
        Engine Control System The Electronic Throttle Control System-intelligent (ETCS-i) is used. ○ - - ○ ○
        The flat type knock sensor is used. ○ - - - -
        The vacuum sensor and the intake air temperature sensor are integrated. - - ○ - -