Honda Civic. Manual — part 1049

Fig. 22: Measuring Commutator Runout
Courtesy of AMERICAN HONDA MOTOR CO., INC.

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): 0.40-0.50 mm (0.016-0.020 in.)

Service Limit: 0.15 mm (0.006 in.)

Fig. 23: Identifying Commutator Mica Depth
Courtesy of AMERICAN HONDA MOTOR CO., INC.

8. Check for continuity between the segments of the commutator. If there is open

circuit between any of the segments, replace the armature.

2008 Honda Civic GX

2006-08 ENGINE Starting System (K20Z3) - Civic (All Except Si)

Fig. 24: Identifying Commutator Segments
Courtesy of AMERICAN HONDA MOTOR CO., INC.

9. Place the armature (A) on an armature tester (B). Hold a hacksaw blade (C) on

the armature core. If the blade is attracted to the core or vibrates while the core
is turned, the armature is shorted. Replace the armature.

Fig. 25: Placing Armature On Armature Tester Hold Hacksaw Blade On
Armature Core
Courtesy of AMERICAN HONDA MOTOR CO., INC.

10. Check for continuity between the commutator (A) and the armature coil core

(B), and between the commutator and the armature shaft (C). If there is
continuity, replace the armature.

2008 Honda Civic GX

2006-08 ENGINE Starting System (K20Z3) - Civic (All Except Si)

Fig. 26: Checking Continuity Between Commutator And Armature Coil
Core
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Starter Brush Inspection

11. Measure the brush length. If it is shorter than the service limit, replace the

brush holder assembly.

Brush Length

Standard (New): 11.1-11.5 mm (0.44-0.45 in.)

Service Limit: 4.3 mm (0.17 in.)

Fig. 27: Measuring Brush Length
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2008 Honda Civic GX

2006-08 ENGINE Starting System (K20Z3) - Civic (All Except Si)

Starter Brush Holder Test

12. Check for continuity between the (+) brush (A) and (-) brush (B). If there is

continuity, replace the brush holder assembly.

Fig. 28: Identifying Starter Brush Holder
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Planetary Gear Inspection

13. Check the planetary gears (A) and ring gear (B). Replace them if they are worn

or damaged.

Fig. 29: Identifying Planetary Gears And Ring Gear
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2008 Honda Civic GX

2006-08 ENGINE Starting System (K20Z3) - Civic (All Except Si)