Mazda MX-5 Miata / Grand Touring. Manual — part 174

Fig. 19: Verifying If There Is No Continuity Between Insulated Brush & Plate
Courtesy of MAZDA MOTORS CORP.

2. Measure the brush length.



If any brush is worn almost to or beyond the minimum specification, replace all of the brushes.

Starter brush length

Standard: 12.3 mm {0.48 in}

Minimum: 5.5 mm {0.22 in}

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Starting System - MX-5 Miata

Fig. 20: Measuring Brush Length
Courtesy of MAZDA MOTORS CORP.

3. Measure the brush spring force using a spring balance.



If not within the minimum specification, replace the brush and brush holder component.

Starter brush spring force

Standard: 15.0-20.4 N {1.53-2.08 kgf, 3.38-4.58 lbf}

Minimum: 2.75 N {0.28 kgf, 0.62 lbf}

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Starting System - MX-5 Miata

Fig. 21: Measuring Brush Spring Force Using Spring Balance
Courtesy of MAZDA MOTORS CORP.

STARTER DISASSEMBLY/ASSEMBLY [LF]

1. Disassemble in the order indicated in Fig. 22 .

2. Assemble in the reverse order of disassembly.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Starting System - MX-5 Miata

Fig. 22: Identifying Disassemble Order Of Starter & Components (With Torque Specifications)
Courtesy of MAZDA MOTORS CORP.

STARTER INTERLOCK SWITCH INSPECTION [MT]

1. Remove the battery cover.

2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [LF] .)

3. Disconnect the starter interlock switch connector.

4. Verify that the continuity is as indicated in Fig. 23 using a tester.



If the continuity is not as indicated in Fig. 23 , replace the starter interlock switch.

CAUTION:



Do not reuse the starter interlock switch if it is removed from the
vehicle even once. Replace with a new starter interlock switch when
installing.

2008 Mazda MX-5 Miata Grand Touring

2008 ENGINE Starting System - MX-5 Miata