Purpose, Function
Timing chain
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
The chain tensioner constantly maintains the timing chain tension and the timing chain operation is stabilized.
Construction
Timing chain
The timing chain is installed between the camshaft sprocket and crankshaft sprocket.

Lubrication of the timing chain and each sprocket is performed using the engine oil from the engine front cover.
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
The chain tensioner is installed to the cylinder block (engine front).
An oil pressure type chain tensioner has been adopted for the chain tensioner.
OPERATION
Chain tensioner
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
ControlSeat Belt Precautions
Seat belts help to decrease the possibility of severe injury during accidents
and sudden stops. Mazda recommends that the driver and all passengers always wear
seat belts.
All of the seat belt retractors are designed to keep the lap/shoulder belts out
of the way when not in use.
The driver ...
Horn
Purpose, Function
The horn sounds according to the horn switch operation.
Construction
Installed to the inside of the front grille.
The diaphragm is vibrated to apply vibration to the air and produce sound.
Operation
1. When the horn switch turns on (1), the ho ...
Front Oil Seal Replacement
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
1. Remove the front under cover No.2..
2. Remove the splash shield..
3. Remove the drive belt..
4. Remove in the order indicated in the table.
5. Install in the reve ...