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:
Splash Shield Removal/Installation
Front
Front splash shield No.1
1. Set the mudguard aside..
2. Remove fasteners A.
3. Remove the front splash shield No.1.
4. Install in the reverse order of removal.
Front splash shield No.2
1. Remove screw B.
2. Remove fasteners C.
3. Remove the front splash shield No.2.
4. ...
Oil Pump Removal/Installation
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Procedure [Plastic Body Parts]
Repair of polypropylene bumpers having damage that has reached the surface of
the polypropylene and are too serious to be restored by painting only.
1. Cut the rough edges around the damage with a knife to make it smooth. Sand
the area with a sander to make an angle of about 45°.
2. ...
