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 Bumper Reinforcement Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Rear splash shield.
b. Rear combination light.
c. Rear bumper.
3. Remove the hanger rubber in the direction of the arrow (1) shown in the figure.
4. Remove nuts.
CAUTION:
Removing the rear bumper ...
Engine Coolant Replacement
WARNING:
Never remove the cooling system cap or loosen the radiator drain plug while
the engine is running, or when the engine and radiator are hot. Scalding engine
coolant and steam may shoot out and cause serious injury. It may also damage
the engine and cooling system.
Tu ...
Clock Spring Inspection [Standard Deployment Control System]
1. Disconnect the negative battery cable and wait for 1 min or more..
2. Remove the driver?side air bag module..
3. Remove the steering wheel..
4. Remove the column cover..
5. Remove the clock spring..
6. Verify that the continuity is as indicated in the table.
If not as indicated ...
