Mazda 3 since 2003
1. Operation and maintenance of the car
2. Engine
3. Transmission
3.1. Coupling
3.2. Mechanical transmission
3.2.1. General information
3.2.2. Check and replacement of oil in the mechanical transmission
3.2.3. Removal and installation of the sensor of a speedometer of the car (without anti-blocking system of brakes)
3.2.4. Replacement of an epiploon (differential)
3.2.5. Removal and installation of the mechanism of gear shifting
3.2.6. Coupling case, dismantling of elements of a case of the main transfer
3.2.6.1. Check of elements of a main shaft
3.2.7. Check and assembly of components of differential and case of the main transfer
3.3. Automatic transmission
3.4. Driving mechanism
3.5. Tables
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
8. Body
 








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3.2.6.1. Check of elements of a main shaft

Fig. 3.48. Check of a gap between gear wheels of the 3rd and 2nd transfers


Measure a gap between gear wheels of the 3rd and 2nd transfers (fig. 3.48).
If the gap exceeds a maximum, check contact surfaces of gear wheels of the 2nd and 3rd transfers, couplings of the synchronizer of the 3 / 4 transfers. Replace the worn-out and damaged details.
Gap: 0,05–0,20 mm.
At most: 0,25 mm.

Fig. 3.49. Check of a gap between a gear wheel of the 4th transfer and the bearing


Measure a gap between a gear wheel of the 4th transfer and the bearing (fig. 3.49).
If the gap exceeds a maximum, check contact surfaces of a gear wheel of the 4th transfer, the bearing and coupling of the synchronizer of the 3 / 4 transfers. Replace the worn-out and damaged details.
Gap: 0.17–0.37 mm.
At most: 0.42 mm.

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3.2.6. Coupling case, dismantling of elements of a case of the main transfer
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3.2.7. Check and assembly of components of differential and case of the main transfer