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:
Rear Wheel Hub Bolt Replacement
1. Remove the brake calliper component and suspend it out of the way using a
cable.
2. Remove the disc plate.
3. Remove the wheel hub bolt using the SST as shown in the figure.
4. Place a new wheel hub bolt in the wheel hub.
5. Install the wheel hub by placing a proper sized washer o ...
Plug Hole Plate Removal/Installation
CAUTION:
If the rubber on only one side of the plug hole plate front is lifted up,
it could damage the adapter at the location shown in the figure. When removing
the plug hole plate, lift up the rubbers at the same time.
Removal
1. Pull up the front part of the plug hole p ...
Antilock Brake System (ABS)
The ABS control unit continuously monitors the speed of each wheel. If one wheel
is about to lock up, the ABS responds by automatically releasing and reapplying
that wheel's brake.
The driver will feel a slight vibration in the brake pedal and may hear a chattering
noise from the brake sy ...
