Mazda MX-5 Miata / Grand Touring. Manual - part 44

 

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Mazda MX-5 Miata / Grand Touring. Manual - part 44

 

 

Fig. 15: Inspecting Brushes For Wear 
Courtesy of MAZDA MOTORS CORP. 

Brush Spring 

1. Measure the force of the brush spring using a spring pressure gauge. 

 

2008 Mazda MX-5 Miata Grand Touring 

2008 ELECTRICAL Charging System - MX-5 Miata

  

Fig. 16: Measuring Force Of Brush Spring Using Spring Pressure Gauge 
Courtesy of MAZDA MOTORS CORP. 

2. Read the spring pressure gauge at the brush tip projection of 2 mm {0.079 in}. 

Replace the brush spring if necessary.  

Generator brush spring force  

Standard: 4.1-5.3 N {0.42-0.54 kgf, 0.92-1.19 lbf}  

Minimum: 1.7 N {0.17 kgf, 0.38 lbf}  

Rectifier (Using an analog circuit tester) 

1. Inspect for continuity of the diodes using an analog circuit tester. 

If not as specified, replace the rectifier.  

Specification  

RECTIFIER SPECIFICATION USING AN ANALOG CIRCUIT TESTER 

Negative

Positive

Continuity

E

P1, P2, P3, P4, P5, P6

Yes

 

2008 Mazda MX-5 Miata Grand Touring 

2008 ELECTRICAL Charging System - MX-5 Miata

  

Fig. 17: Identifying Diodes 
Courtesy of MAZDA MOTORS CORP. 

Rectifier (Using a digital circuit tester) 

1. Inspect for continuity of the diodes using a digital circuit tester. 

If not as specified, replace the rectifier.  

Specification  

RECTIFIER SPECIFICATION USING AN DIGITAL CIRCUIT TESTER 

B

-

No

P1, P2, P3, P4, P5, P6

E

No

-

B

Yes

Negative

Positive

Continuity

E

P1, P2, P3, P4, P5, P6

No

B

-

Yes

P1, P2, P3, P4, P5, P6

E

Yes

-

B

No

 

2008 Mazda MX-5 Miata Grand Touring 

2008 ELECTRICAL Charging System - MX-5 Miata

  

Fig. 18: Identifying Diodes 
Courtesy of MAZDA MOTORS CORP. 

Bearing 

1. Inspect for abnormal noise, looseness, and sticking. 

Replace the bearing if necessary. 

 

2008 Mazda MX-5 Miata Grand Touring 

2008 ELECTRICAL Charging System - MX-5 Miata

  

 

 

 

 

 

 

 

Content   ..  42  43  44  45   ..