Mazda MX-3 silhouetteMX-3

STARTING SYSTEM — STARTER Inspection (Brush, Yoke, Armature)

G-41prose procedure

Brush length specs differ by engine and transaxle (B6 DOHC, K8 DOHC MTX, K8 DOHC ATX).

Brush

If a brush is worn almost to or beyond the wear limit, replace all the brushes.

Brush length

Standard mm {in}
B6 DOHC16 {0.7}
K8 DOHC MTX17.5 {0.69}
K8 DOHC ATX17.0 {0.67}
Minimum mm {in}
B6 DOHC10 {0.4}
K8 DOHC MTX12 {0.5}
K8 DOHC ATX11.5 {0.46}

Yoke

  1. 1
    Check for continuity between terminal M wire and brushes. Replace the yoke assembly if there is no continuity.
    Hand using an ohmmeter to check continuity between the terminal M wire and the brushes on the yoke.
  2. 2
    Check continuity between terminal M wire and yoke. Replace the yoke assembly if there is continuity.
    Hand using an ohmmeter to check continuity between the terminal M wire and the yoke.
  3. 3
    Check if the field coil is loose. Replace the yoke assembly if it is.

Armature

  1. 1
    Check continuity between the commutator and the core. Replace the armature if there is continuity.
    Hand using an ohmmeter to check continuity between the commutator and the core of the armature.
  2. 2
    Check continuity between the commutator and the shaft. Replace the armature if there is continuity.
    Hand using an ohmmeter to check continuity between the commutator and the shaft of the armature.

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