3. Place the armature on V-blocks, and measure the runout using a dial indicator.
Starter armature runout
0.1 mm {0.004 in} max.
Fig. 10: Measuring Runout Using Dial Indicator
4. Measure the commutator diameter.
z
If not within the minimum specification, replace the armature.
Starter commutator diameter
Standard: 29.4 mm {1.16 in}
Minimum: 28.8 mm {1.13 in}
Fig. 11: Measuring Commutator Diameter
5. Measure the segment groove depth of the commutator.
z
If not within the minimum specification, undercut the grooves to the standard depth.
Segment groove depth of starter commutator
Standard: 0.5 mm {0.02 in}
2007 Mazda CX-9 Grand Touring
2007 ENGINE Starting System (MZI-3.5) - CX-9
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