Purpose, Function
The crankshaft pulley transmits the drive force to the auxiliary parts via the drive belt.
The crankshaft pulley suppresses torsional vibration of the crankshaft.
Construction
The crankshaft pulley is installed to the front of the crankshaft.

The crankshaft pulley has a torsional damper for suppressing torsional vibration of the crankshaft.
The crankshaft pulley has key groove to match the timing to the crankshaft.
The crankshaft pulley has a timing mark indicating the piston position.

Drive Belt Auto Tensioner InspectionDSC HU/CM Inspection
1. Disconnect the DSC HU/CM connector..
2. Connect the negative battery cable..
3. Attach the tester lead to the DSC HU/CM wiring harness-side connector and
inspect voltage, continuity, or resistance according to the standard (reference)
on the table.
Standard (Reference)
...
Towing Description
We recommend that towing be done only by an Authorized Mazda Dealer or a commercial
tow-truck service.
Proper lifting and towing are necessary to prevent damage to the vehicle.
Particularly when towing a AWD vehicle, where all the wheels are connected to
the drive train, proper transporting of ...
Engine
Special Features
For SKYACTIV-G 2.0, the following is performed to lower fuel consumption.
Improvement of mechanical resistance loss
Narrowed down crankshaft journal
Optimized piston skirt shape
Lowered piston ring tension
...