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02-18
Vacuum pump
Pump capacity: 210 cc/rev
Camshaft speed:
375 to 3,000 rpm
Lubrication temperature:
-40 to 155°C
Oil: 5W30
Drive type: Driven by exhaust
Camshaft sprocket
EGR cooler bypass valve
This valve is controlled by ECU. When the engine
is cooled, the exhaust gas goes to combustion
chamber without passing through EGR cooler
because the valve is closed by vacuum pressure.
2. VACUUM PUMP
Vacuum pump generates the vacuum pressure and supplies it to EGR cooler bypass solenoid. This
pump is single vane type and displacement is 210 cc/rev. The lubrication oil is supplied through the
hole in hollow shaft.
Components ▶
Brake booster and naster
cylinder
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02-190000-00
1) Location
2) Operation
The vacuum pump is engaged to the exhaust camshaft.
Connection between vacuum pump and
exhaust camshaft
Oil supply and driving
Vacuum pumpExhaust camshaft
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02-20
Rear mounting insulator
2WD M/T 2WD A/T 4WD A/T
3. ENGINE MOUNTING
D20DTR engine uses 3-point mounting type that supports the engine and transmission simultaneously.
Components ▶
Front mounting insulator (Left side)
Location InsulatorFront mounting insulator (Right side)
Location Insulator
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Appearance Type and function
Front mounting insulator (Left side) Type: Rubber mounting
Function: Supports the powertrain
Front mounting insulator (Right side) Type: Rubber mounting
Function: Supports the powertrain
Rear mounting insulato Type: Rubber mounting
Function: Supports the powertrain
1) Functions
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02-22
4. INTAKE/EXHAUST MANIFOLD
1) Intake Manifold
Intake manifold is installed on the cylinder head with 8 bolts. The variable swirl valve is introduced to
improve the EGR gas mixture and turbulence in combustion chamber and to decrease the exhaust gas.
2) Exhaust Manifold
Exhaust manifold is installed on the cylinder head with 10 stud bolts and nuts. EGR port is integrated in
cylinder head.Components ▶
Components ▶For detailes, refer to Chapter "Intake System". *
For detailes, refer to Chapter "Exhaust System".
*
Exhaust manifold
Intake manifold
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Rear view
5. CYLINDER HEAD COVER AND OIL SEPARATOR
The cylinder head cover is made by high strength plastic to reduce the weight. The multi twist type oil
separator improves the oil consumption.
Components ▶
1) Cylinder Head Cover
Cylinder head cover
Cylinder head cover
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02-24
2) Oil Separator
Oil separator separates the particle in blow-by gas to minimize the engine oil consumption and reduces
the inflow oil from intake system into the combustion chamber. The separated oil returns to oil pan
through cylinder head.
Oil separator
Blow-by outlet hose
(1) Overview
(2) Layout
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Vacuum pump driveHP pump drive gear
Cylinder head gasket
Camshaft position sensor
Components ▶
Cylinder head
Cylinder head contains cam position sensor, vacuum pump, intake manifold, exhaust manifold and valve
assembly. Vacuum pump and the high pressure (HP) pump are driven by Camshaft and valves are install
in vertical direction. This enables the compact layout in cylinder head assembly.
6. CYLINDER HEAD
Finger follower & HLACamshaft sprocketIntake/exhaust Camshafts