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Type :
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STARTER CARBON BRUSH HOLDER
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Specification :
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Outside diameter:72mm Inner diameter:30mm
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Pulley :
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Number of brush:4 pcs
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Brand :
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NUOJIN
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Number :
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69-85200
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Quality :
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NEW
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Delivery time :
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7--10DAY
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The core steps for installing the 12V starter brush holder of Honda Accord are: Power off → Remove the starter → Dismantle the rear cover → Take out the old brush holder → Install the new brush holder → Reset the carbon brushes and springs → Clean the commutator → Reinstall the rear cover and starter → Power-on test. Below are the detailed procedures and key points.
Disconnect the power cable and control wire plugs on the starter, and mark them clearly to avoid reverse connection during reinstallation.
Remove the starter fixing bolts (usually 2–3 pieces) and take the starter off to place it on the workbench.
Use a marker to draw alignment lines on the rear cover and the starter housing to ensure concentricity when reinstalling.
Remove the rear cover fixing screws (note the differences in length and thickness) and take off the rear cover.
Remove the brush holder fixing screws or buckles, and carefully take out the old brush holder; if it is a welded type, use an electric soldering iron to desolder the wires and mark their positions clearly.
Take out the old carbon brushes and record the positions of the positive and negative brushes (usually 2 positive and 2 negative; the negative brushes are often connected to the brush holder, while the positive brushes are equipped with insulating gaskets).
Commutator: Polish the surface with fine sandpaper until it is bright, and remove carbon powder from the grooves; if there is ablation or out-of-roundness, it is recommended to repair or replace the rotor.
Brush Holder and Springs: Clean carbon powder inside the brush holder, check the elasticity of the springs to ensure there is no deformation or breakage.
Other Components: Inspect bearings, one-way clutch, field coil, etc., and handle any abnormalities accordingly.
Install the new brush holder in the original position, align it with the positioning pins/screw holes, and tighten the fixing screws with moderate torque to avoid thread slipping.
If it is a welded type, reliably solder the carbon brush wires to the coil leads, ensuring the solder joints are full and free of cold solder, and the insulation wrapping is properly done.
Install the new carbon brushes into the brush holder to ensure they can slide freely without jamming.
Use circlip pliers or a screwdriver to reset the carbon brush springs, ensuring the springs press the carbon brushes evenly and fit well with the commutator.
Manually rotate the rotor to confirm that the carbon brushes slide smoothly on the commutator without abnormal resistance or noise.
Check that there is no interference between the brush holder and the housing/rotor, and that the insulating components are not damaged.
Reinstall the rear cover according to the alignment lines, and tighten the fixing screws evenly (tighten crosswise step by step to avoid deformation).
If there are seals/gaskets, ensure they are installed in place to prevent water ingress or abnormal noise.
Mount the starter back to the engine and tighten the fixing bolts to the specified torque (refer to the vehicle manual, usually 25–35 N·m).
Reconnect the power cable and control wire plugs according to the marks to ensure firm connections.
Reconnect the negative terminal of the battery.
Turn the key to the start position and observe whether the starter runs smoothly without abnormal noise; if there is noise or failure to start, cut off the power immediately for inspection.
Perform multiple start tests to confirm stable performance.
Before installation, the negative terminal of the battery must be disconnected and properly insulated. Dismantling or installing starter components in a powered state is strictly prohibited to prevent short circuits that could burn out coils, or cause electric shocks and spark hazards.
Use socket wrenches/spanners of matching specifications to remove bolts to avoid thread stripping. When soldering wires, ensure the power is cut off and fire protection measures are in place to prevent high temperatures from damaging insulating components.
After the starter is disassembled, precision components such as the commutator and coils should be protected from collisions and oil contamination. Keep the workbench clean and dry to prevent dust from entering the interior and affecting operation.
Carbon brushes must be of the same model and size as the original (including length, width, thickness, and resistance value). Mixing carbon brushes of different specifications is strictly forbidden, as this can lead to poor contact, excessive sparking, or premature wear.
The brush holder must be compatible with the starter model (e.g., brush holders for Honda Accord starters of different model years have structural differences). Ensure that the positioning pins, screw holes, and wire interfaces match the original factory specifications to avoid interference or electrical faults after installation.
Check that auxiliary parts such as seals, insulating gaskets, and springs are intact before installation. It is recommended to replace aged seals to prevent water ingress or abnormal noise in the later stage.
The positive and negative poles of the carbon brush wires must be installed strictly according to the original vehicle marks (the positive pole is usually equipped with an insulating gasket, and the negative pole is connected to the brush holder housing). Reversing the polarity will directly burn out the field coil or armature winding.
Align the brush holder with the housing positioning pins and tighten the fixing screws to the specified torque (usually 3–5 N·m) to avoid loosening that could cause carbon brush offset and uneven contact with the commutator.
Before reinstalling the rear cover, verify the alignment marks made during disassembly to ensure concentricity between the housing and the rear cover. Tighten the fixing screws crosswise and step by step to prevent rotor eccentricity from causing "stator-rotor rubbing" (friction between the rotor and stator).
After installing the carbon brushes into the brush holder, they should slide freely without jamming. The springs must press the carbon brushes evenly to ensure that the contact area between the carbon brushes and the commutator is ≥70% and the pressure is consistent (the pressure of a single spring is usually 15–20 N).
References：This text about the "key precautions for installing the 12V starter brush holder of Honda Accord" does not come from Honda's official service manuals, owner's manuals, or public documents released by authoritative automobile manufacturers, nor is it found in the exact same original text on platforms such as Autohome or PCauto.
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