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:
Airflow Mode Main Link Removal/Installation
Full-auto Air Conditioner
1. The airflow mode main link is installed to the airflow mode actuator. When
removing the airflow mode main link, refer to the airflow mode actuator removal/installation..
Manual Air Conditioner
1. Disconnect the negative battery cable..
2. Remove the glove compar ...
Light Switch Inspection
Light Switch
1. Disconnect the negative battery cable..
2. Remove the column cover..
3. Remove the light switch..
4. Verify that the continuity between the light switch terminals is as indicated
in the table.
Vehicles without auto light system
Vehicles with auto light system
...
Transfer Oil Seal Replacement [Fw6 Ax EL]
Transfer oil seal (LH)
1. Drain the transfer oil..
2. Remove the transfer from the vehicle..
3. Insert a tape-wrapped flathead screwdriver into the lip area of the oil seal
(LH) as shown in the figure and remove the oil seal (LH).
4. Using the SST and a hammer, tap the new seal into pla ...
