Mazda Speed 6. Manual - part 9

03 DRIVELINE/AXLE

38

Electronic Control Coupling
The electronic control coupling switches power to the rear wheels the rear 
differential. 

Internal Components

03 DRIVELINE/AXLE

39

Electromagnetic Clutch OFF

Electromagnetic solenoid off, pilot clutch released
No power to rear differential and the rear wheels are turning at same rate as 
front

The ball is centered in the pilot cam so no pressure is exerted on the main clutch 
and no torque is transmitted to the rear differential.

 

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•

03 DRIVELINE/AXLE

40

Power to Electromagnetic Clutch

Electromagnetic solenoid energized, pilot clutch applied
A slight difference in speed between the front and rear wheels

When the electromagnetic coil is energized and the front wheels rotate at a 
different rate than the rear wheels, the ball separates the main cam and the pilot 
cam.  This exerts force on the main clutch and torque is transmitted from the 
driveshaft to the rear differential.

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•

03 DRIVELINE/AXLE

41

Tochigi-Fuji Limited Slip Differential (LSD)