Mazda CX-5 Service & Repair Manual: 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
-
narrowing down the crankshaft journal
-
optimizing the piston skirt shape
-
adoption of a low-tension piston ring
-
lowered tensioning of the drive belt
-
A maintenance-free design for valve clearance has been achieved with the adoption of the HLA.
-
With the adoption of a piston cavity, cooling loss has been reduced.
-
The pumping loss*2 has been reduced with the adoption of the variable valve timing mechanism on both sides of the intake and exhaust.
-
The timing chain behavior has been stabilized and sliding resistance has been reduced by optimizing the shape and rigidity of the timing chain-related parts.
*2 Energy loss which occurs from each type of resistance corresponding to intake and exhaust is called pumping loss.
Structural View
Structure
-
Consists of the following parts:
|
Cylinder head cover |
(See CYLINDER HEAD COVER [SKYACTIV-G 2.0].) |
|
|
Cylinder head |
(See CYLINDER HEAD [SKYACTIV-G 2.0].) |
|
|
Cylinder head gasket |
(See CYLINDER HEAD GASKET [SKYACTIV-G 2.0].) |
|
|
Cylinder block |
(See CYLINDER BLOCK [SKYACTIV-G 2.0].) |
|
|
Crankshaft |
(See CRANKSHAFT, MAIN BEARING [SKYACTIV-G 2.0].) |
|
|
Piston |
(See PISTON, PISTON RING, PISTON PIN [SKYACTIV-G 2.0].) |
|
|
Connecting rod |
(See CONNECTING ROD, CONNECTING ROD BEARING [SKYACTIV-G 2.0].) |
|
|
Engine front cover |
(See ENGINE FRONT COVER [SKYACTIV-G 2.0].) |
|
|
Crankshaft pulley |
(See CRANKSHAFT PULLEY [SKYACTIV-G 2.0].) |
|
|
Drive belt |
(See DRIVE BELT [SKYACTIV-G 2.0].) |
|
|
Valve mechanism (See VALVE MECHANISM [SKYACTIV-G 2.0].) |
Valve |
(See VALVE, VALVE SPRING, VALVE SEAL, VALVE GUIDE [SKYACTIV-G 2.0].) |
|
HLA |
(See HYDRAULIC LASH ADJUSTER, ROCKER ARM [SKYACTIV-G 2.0].) |
|
|
Camshaft |
(See CAMSHAFT [SKYACTIV-G 2.0].) |
|
|
Timing chain |
(See TIMING CHAIN, CHAIN TENSIONER [SKYACTIV-G 2.0].) |
|
|
Variable valve timing mechanism (See VARIABLE VALVE TIMING MECHANISM [SKYACTIV-G 2.0].) |
OCV |
(See OIL CONTROL VALVE (OCV) [SKYACTIV-G 2.0].) |
|
Hydraulic variable valve timing actuator |
(See HYDRAULIC VARIABLE VALVE TIMING ACTUATOR [SKYACTIV-G 2.0].) |
|
|
Electric variable valve timing actuator |
(See ELECTRIC VARIABLE VALVE TIMING ACTUATOR [SKYACTIV-G 2.0].) |
|
|
Electric variable valve timing relay |
(See ELECTRIC VARIABLE VALVE TIMING RELAY [SKYACTIV-G 2.0].) |
|
|
Engine mount |
(See ENGINE MOUNT [SKYACTIV-G 2.0].) |
|
Hydraulic Variable Valve Timing Actuator
Purpose, Function
The hydraulic variable valve timing actuator operates according to the hydraulic
pressure and changes the phases of the exhaust camshaft. As a result, the open/close
per ...
Miller Cycle Engine
Outline
The Miller cycle engine is a high-efficiency engine which achieves high fuel
economy performance by obtaining a high-expansion ratio.
The Miller cycle engine achieves a high- ...
Other materials:
Seat Belt Warning Light
Purpose
The seat belt warning light warns the driver that a seat belt is not fastened.
Function
The instrument cluster flashes/illuminates the seat belt warning light based
on the following CAN signals:
Vehicle speed signal sent from PCM
Driver/passenge ...
Electric Variable Valve Timing Motor/Driver Inspection
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
CAUTION:
Do not disassemble the electric variable valve timing motor/driver because
it is a precision unit.
Do not apply excessive force when rotating the ...
Brake System/ABS Warning Light
Purpose/Function
The brake system/ABS warning light is built into the instrument cluster.
If a malfunction is detected in the system with the parking brake released,
the warning light illuminates to notify the driver.
Construction/Operation
When the DSC system and CAN l ...