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:
Side Step Molding Removal/Installation
1. Set the rear over fender aside..
2. Insert a tape-wrapped flathead screwdriver shown in the figure and remove
the clip A in the direction of arrow (1).
3. Slide the side step molding in the direction of the arrow (2) shown in the
figure and remove clips B from side step molding.
4. ...
Vehicle Loading
This section will guide you in the proper loading of your vehicle and/or trailer,
to keep your loaded vehicle weight within its design rating capability, with or
without a trailer.
Properly loading your vehicle will provide maximum return of vehicle design performance.
Before loading your vehi ...
Compression Inspection
WARNING:
Hot engines and oil can cause severe burns. Be careful not to burn yourself
during removal/installation of each component.
Fuel vapor is hazardous. It can very easily ignite, causing serious injury
and damage. Always keep sparks and flames away from fuel.
Fuel ...
