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:
Glass Antenna Inspection
1. Disconnect the negative battery cable..
2. Partially peel back the seaming welt.
3. Remove the liftgate upper trim..
4. Disconnect antenna feeder No.3 connector..
5. Visually inspect the glass antenna for damage.
6. Verify that the continuity between the glass antenna terminals is as in ...
Climate Control Unit Disassembly/Assembly [Manual Air Conditioner]
1. Disassemble in the order indicated in the figure.
1
Dial
2
Airflow mode wire
(See Wire Removal Note.)
(See Wire Installation Note.)
3
Air mix wire
(See Wire Removal Note.)
(See Wire Installation Note ...
Automatic Transaxle Removal/Installation [Fw6 Ax EL]
CAUTION:
Performing the following procedures without first removing the front ABS
wheel-speed sensor may possibly cause an open circuit in the harness if it is
pulled by mistake. Before performing the following procedures, disconnect the
front ABS wheel-speed sensor (axle side) and ...
