Sonata V6-2.7L (2004)
6. Measure the commutator (A) runout.
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If the commutator runout is within the service limit, check the commutator for carbon dust or brass chips between the segments.
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If the commutator runout is not within the service limit, replace the armature.
Commutator Runout
Standard (New): 0.02 mm (0.001 in.) max.
Service limit: 0.05 mm (0.002 in.)
7. Check the mica depth (A). If the mica is too high (B), undercut the mica with a hacksaw blade to the proper depth. Cut away all the mica (C)
between the commutator segments. The undercut should not be too shallow, too narrow, or V-shaped (D).
Commutator mica depth
Standard (New):
M/T: 0.5-0.8 mm (0.020-0.031 in.)
A/T: 0.4-0.5 mm (0.016-0.020 in.)
Service limit:
M/T: 0.2 mm (0.008 in.) A/T: 015 mm (0.006 in.)
