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Home >> Acura >> 2011 >> RDX 2.3 TB1 >> Repair and Diagnosis >> Electrical >> Starter >> Starting System >> Starter Overhaul >> Exploded View

Exploded View

Fig 1: Exploded View Of Starter With Torque Specifications
G08072579Courtesy of AMERICAN HONDA MOTOR CO., INC.
NOTE: Refer to the EXPLODED VIEW  if needed during this procedure.
  1. Remove the starter (see STARTER REMOVAL AND INSTALLATION  ).

    Armature Inspection and Test 

  2. Inspect the armature for wear or damage from contact with the permanent magnet. If there is wear or damage, replace the armature.
    Fig 2: Identifying Armature
    G08072580Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Check the commutator (A) surface. If the surface is dirty or burnt, resurface it with an emery cloth or a lathe to the specifications in step 4, or recondition with #500 or #600 sandpaper (B).
    Fig 3: Checking Commutator Surface
    G08072581Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Check the commutator diameter with a digital caliper or dial type caliper. If the diameter is below the service limit, replace the armature.

    Commutator Diameter 

    Standard (New): 28.0-28.1 mm (1.102-1.106 in) 

    Service Limit: 27.5 mm (1.083 in) 

    Fig 4: Checking Commutator Diameter With Digital Caliper
    G08072582Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Measure the commutator (A) runout:
    • If the commutator runout is within the service limit, check the commutator for carbon dust or brass chips between the segments.
    • If the commutator runout is not within the service limit, replace the armature.

    Commutator Runout 

    Standard (New): 0.02 mm (0.0008 in) max. 

    Service Limit: 0.05 mm (0.0020 in) 

    Fig 5: Measuring Commutator Runout
    G08072583Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Use a digital caliper or dial type caliper to check the mica depth (A). If the mica depth is below the service limit, replace the armature.

    Commutator Mica Depth 

    Standard (New): 0.40-0.50 mm (0.0157-0.0197 in) 

    Service Limit: 0.15 mm (0.0059 in) 

    Fig 6: Identifying Commutator Mica Depth
    G08072584Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Use an ohmmeter to check for continuity between the segments of the commutator. If there is an open circuit between any of the segments, replace the armature.
    Fig 7: Checking For Continuity Between Commutator Segments
    G08072585Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. 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 while the core is turned, the armature is shorted. Replace the armature.
    Fig 8: Testing Armature
    G08072586Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Use an ohmmeter to 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.
    Fig 9: Checking Continuity Between Commutator And Armature Coil Core
    G08072587Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Starter Brush Inspection 

  10. Remove the brush holder.
  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 (0.437-0.453 in) 

    Service Limit: 4.3 mm (0.169 in) 

    Fig 10: Measuring Brush Length
    G08072588Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Starter Brush Holder Test 

  12. Check for continuity between the (+) brushes (A) and the (-) brushes (B). If there is continuity, replace the brush holder assembly.
    Fig 11: Identifying (+) Brush Holders And (-) Brush Holders
    G08072589Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Planetary Gear Inspection 

  13. Check the planetary gears (A), the armature shaft gear (B), and the internal ring gear (C). Replace them if they are worn or damaged.
    Fig 12: Identifying Planetary Gears, Armature Shaft Gear And Internal Ring Gear
    G08072590Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Overrunning Clutch Inspection 

  14. Holding the drive gear (A), turn the gear shaft (B) counterclockwise. Check that the drive gear comes out to the other end. If the drive gear does not move smoothly, replace the gear cover set.
    Fig 13: Checking Drive Gear
    G08072591Courtesy of AMERICAN HONDA MOTOR CO., INC.
  15. Holding the drive gear, turn the gear shaft clockwise. The gear shaft should rotate freely. If the gear shaft does not rotate smoothly, replace the gear cover set.
  16. If the drive gear is worn or damaged, replace the overrunning clutch assembly; the gear is not available separately. Check the condition of the torque converter ring gear to see if the starter drive gear teeth are damaged.

    Starter Reassembly 

  17. Install the brush into the brush holder, and set the armature (A) in the brush holder (B).
    NOTE: To seat the new brushes, slip a strip of #500 or #600 sandpaper, with the grit side up, between the commutator and each brush, and smoothly rotate the armature. The contact surface of the brushes will be sanded to the same contour as the commutator.
    Fig 14: Identifying Armature, Brush Holder And Brush Springs
    G08072592Courtesy of AMERICAN HONDA MOTOR CO., INC.
  18. While squeezing a brush spring (C), insert it in the hole on the brush holder, and push it until it bottoms. Repeat this for the other three brush springs (D, E, and F).
  19. Install the armature and the brush holder assembly into the armature housing.
    NOTE: Make sure the armature stays in the holder.
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