Mazda CX-5 Service & Repair Manual: Valve Mechanism
Outline
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A DOHC type valve system has been adopted and consists of four valves (two intake valves and two exhaust valves) per cylinder for a total of 16 valves operated by two camshafts.
Structural View
Resonance Chamber
Purpose, Function
Pulsation of intake air is controlled and intake air noise is reduced by
adding an intake air passage.
Construction
The resonance chamber is installed to fresh ...
Variable Valve Timing Mechanism
Outline
Achieves optimum valve timing according to the driving conditions by the
variable valve timing mechanism changing the phases of the camshaft.
An electric type variable valve ...
Other materials:
Crankshaft Position (CKP) Sensor
Purpose/Function
Detects the crankshaft speed as basic information for mainly determining
the fuel injection timing and ignition timing.
Detects the crankshaft speed and inputs it to the PCM as a CKP signal.
Construction
Installed on the side of the cylinder block (ri ...
Fuel Filler Pipe Removal/Installation
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 and eyes. To prevent this, always complete the “Fuel
Line Safety Procedure”, while referring ...
Fresh Air Duct
Purpose, Function
Conducts fresh air from outside the engine compartment.
Increases air density by taking fresh air, which is cooler than the engine
compartment, to enhance the charging efficiency, ensuring the combustion stability.
Construction
The fresh-air duct is i ...
