Mazda CX-5 Service & Repair Manual: Miller Cycle Engine
Outline
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The Miller cycle engine is a high-efficiency engine which achieves high fuel economy performance by obtaining a high-expansion ratio.
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The Miller cycle engine achieves a high-expansion ratio without increasing its effective compression ratio by retarding the intake air valve close timing.
Operation
1. Intake air is introduced into the cylinder.
2. The intake valve is kept open after the intake stroke is finished to force the air in the cylinder to flow back to the intake pipe.
3. The compression stroke starts from the position in which the intake valve is closed (small compression).
4. The air-fuel mixture is combusted and the piston is pushed down to BDC (large expansion).
Mechanical
Outline
The sliding resistance*1 has been reduced by:
the adoption of a rocker arm (built into needle roller bearing)
reducing load on the valve spring
narrow ...
Non Return Valve Inspection
WARNING:
Fuel is very flammable liquid. If fuel spills or leaks from the pressurized
fuel system, it will cause serious injury or death and facility breakage. Fuel
can also irritate skin ...
Other materials:
Windshield Wiper Motor And Link Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Windshield wiper arm and blade.
b. Cowl grille.
CAUTION:
Always affix protective tape to the windshield end. If the windshield wiper
motor and link contacts the windshield, it could damage the windshield. ...
Rain Sensor Removal/Installation
1. Disconnect the negative battery cable..
2. Spread open the rain sensor cover in the direction of the arrows (1) and disengage
tabs A to remove it.
3. Disconnect the rain sensor connector in the direction of the arrow (2).
4. Slide rain sensor tabs B in the direction of the arrow ...
Shroud Panel Removal/Installation
CAUTION:
Since the servicing is performed with the hood open, secure the hood using
a piece of wood to prevent it from falling.
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Seal board upper.
b. Front bumper.
c. Front combination light.
d. Sh ...
