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
...
Other materials:
Electronic Control System Outline [Fw6 A EL, Fw6 Ax EL]
Outline
In the electronic control system, the TCM calculates the control content
based on signals from each type of sensor and switch to operate output parts
such as each solenoid. In consideration of suppressed shift shock, smooth driving,
and improved fuel economy, the TCM performs ...
Front Seat Belt Pretensioner and Load Limiting Systems
For optimum protection, the driver and front passenger seat belts are equipped
with pretensioner and load limiting systems. For both these systems to work properly
you must wear the seat belt properly.
Pretensioners:
In moderate or severe frontal or nearfrontal accidents, the front air bag and ...
Drive Belt Inspection [Skyactiv G 2.0]
Generator Drive Belt
NOTE:
The generator drive belt deflection/tension inspection is not necessary with
the adoption of the drive belt auto tensioner.
1. Verify that the indicator part of the cast hexagon on the drive belt auto
tensioner is within the normal range.
If ...
