Mazda CX-5 Service & Repair Manual: Timing Chain, Chain Tensioner
Purpose, Function
Timing chain
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The timing chain transmits the rotation force of the crankshaft to the camshaft to perform the rotation timing of the crankshaft and camshaft.
Chain tensioner
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The chain tensioner constantly maintains the timing chain tension and the timing chain operation is stabilized.
Construction
Timing chain
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The timing chain is installed between the camshaft sprocket and crankshaft sprocket.
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Lubrication of the timing chain and each sprocket is performed using the engine oil from the engine front cover.
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Improvement of the rigidity of the chain guide and tensioner arm and the stability of the timing chain operation have reduced the sliding resistance.
Chain tensioner
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The chain tensioner is installed to the cylinder block (engine front).
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An oil pressure type chain tensioner has been adopted for the chain tensioner.
OPERATION
Chain tensioner
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Fluctuation in the timing chain tension by oil pressure and spring force is suppressed, and the tension is maintained at a constant.
Timing Chain Removal/Installation
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
CAUTION:
If the camshaft is rotated with the timing chain removed ...
Control
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Other materials:
High Clutch [Fw6 A EL, Fw6 Ax EL]
Purpose/Function
The high clutch operates in 4GR, 5GR, and 6GR and intermittently operates
the rear carrier by drive force from the turbine shaft.
For the high clutch, a centrifugal balance clutch has been adopted to prevent
clutch drag and to assure stabilized piston thrust in ...
Auto Light System
Outline
The auto light system automatically turns the TNS and headlights on/off according
to the illumination level above and in front of the vehicle.
The auto light system is controlled by the front body control module (FBCM).
The front body control module (FBCM) performs ...
Afs (Adaptive Front Lighting System) Control Module
Purpose
The AFS control module calculates the target optical axis based on the vehicle
height signal and outputs the target optical axis signal to the headlight leveling
actuator.
Function
The AFS control module performs control of the AFS and headlight auto leveling.
...
