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Type :
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starter
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Specification :
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12V 1.2KW
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Number of feet :
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9T
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Brand :
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NUOJIN
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Number :
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31200-R1A-A12 31200R1AA12
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Quality :
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Remanufacture
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Delivery time :
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10 day
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10mm, 12mm, 14mm wrenches/sockets
Box-end wrenches, Phillips screwdriver
Torque wrench (range: 37-45N·m)
Insulating tape, marker pen, cleaning cloths
Ensure the vehicle is parked securely, apply the handbrake, and shift to P (Park) for automatic transmission or Neutral for manual transmission.
Turn off all electrical devices and remove the ignition key.
Disconnect the negative (-) battery terminal and wait for 5 minutes to prevent electric shock and accidental startup.
Acura ILX: At the junction of the engine and transmission, near the bottom of the flywheel housing.
Honda Civic: Below the right side of the engine, under the intake manifold, visible when viewing upward from the subframe.
Use a 10mm wrench to loosen and remove the main power cable (thick red wire); mark its position.
Disconnect the control wire (thin wire) and mark its position similarly.
Note: The crimped side of the starter motor cable's ring terminal should face outward (away from the starter motor) – maintain this orientation during installation.
Civic: Typically 2 x 14mm bolts (the upper bolt requires a 14mm socket).
ILX: Generally 2 x 12mm bolts.
Loosen the bolts in a diagonal sequence and remove them completely.
Gently rock the starter motor to separate it from the mounting surface, then carefully remove it.
Avoid impact or dropping to prevent damage to gears and the housing.
Verify specifications match: 12V, 1.2KW, clockwise rotation (right-hand).
Check for no external damage and undamaged gears.
Clean the mounting surface to remove oil, grease, and rust.
Align the new starter motor with the mounting holes and gently push it into place.
Loosely fit the upper bolt first, then the lower bolt.
Tighten the mounting bolts to the specified torque in a top-to-bottom sequence: 37-45N·m
First connect the main power cable (thick red wire), ensuring the ring terminal's crimped side faces outward.
Then connect the control wire (thin wire) to ensure a secure connection.
Tighten all wiring terminals with a wrench to prevent loosening.
Press the start button briefly (no more than 5 seconds) and observe the starter motor's operation.
After startup, verify the starter motor retracts promptly with no abnormal noise.
If startup fails, wait 10-15 seconds before retrying to avoid damaging the starter motor from continuous operation.
Always disconnect the negative battery terminal first, followed by the positive terminal.
During installation, connect the positive wire first, then the negative wire.
Ensure all wiring has intact insulation with no damage.
Do not overtighten the mounting bolts (torque not exceeding 45N·m) to prevent thread stripping or housing damage.
Ensure accurate positioning of the starter motor during installation to avoid poor gear meshing.
Maintain an appropriate gap between the starter motor and flywheel: excessive tightness causes startup difficulty, while excessive looseness leads to idle rotation.
If startup is difficult after replacement, check for wiring interference or gear misalignment.
Avoid operation in humid environments to prevent short circuits.
Clean the engine compartment after installation to remove oil, grease, and metal debris.
The key to correct starter motor installation lies in: prioritizing power disconnection safety, accurate positioning, torque compliance, and standardized wiring. Following the above steps ensures smooth replacement of the starter motor for both models. Always perform a test after installation to confirm smooth startup with no abnormal noise. For complex issues, consult a professional technician.
The content of the starter motor installation guide provided is not derived from a single authoritative source, but rather integrates professional knowledge from general standards in the automotive repair field and maintenance data for multiple vehicle models. Below is an analysis of the key content sources:
Position Description: Below the right side of the engine, under the intake manifold, visible when viewing upward from the subframe
Source: Pacific Auto Network, "How to Remove the Starter Motor of Honda Civic"
Mounting Bolt Specifications: 2 x 14mm bolts (the upper bolt requires a 14mm socket)
Sources: Autohome, "How to Remove the Starter Motor of Honda Civic" and Pacific Auto Network
Removal Steps: First remove the alternator belt and tensioner, then disconnect the electrical connections, followed by removing the mounting bolts
Basis: Pacific Auto Network, "How to Remove the Starter Motor of Honda Civic" and "How to Replace the Starter Motor of Honda Civic"
Position Description: At the junction of the engine and transmission, near the bottom of the flywheel housing
Reference: Acura ILX Service Manual (obtained through professional automotive repair databases)
Mounting Bolt Specifications: 2 x 12mm bolts, torque 45N·m
Source: Acura ILX Technical Specification Sheet (obtained through professional automotive repair databases)
Main Power Cable Connection: The crimped side of the ring terminal faces outward (away from the starter motor)
Source: Standard connection specifications for automotive electrical systems
Wiring Sequence: First connect the main power cable, then the control wire; during reinstallation, connect the positive terminal first, then the negative terminal
Basis: Textbook Construction and Maintenance of Automotive Electrical Equipment and automotive repair practice standards
The overall framework and steps of this guide are integrated from:
Pacific Auto Network: "How to Correctly Install a Starter Motor" and "How to Replace a Starter Motor"
Autohome: "Replacement Steps for Automotive Starter Motors"
Chapter on starter system inspection and starter motor replacement in the courseware Automotive Maintenance and Upkeep
The starter motor installation guide provided is a general knowledge system in the professional automotive repair field, integrating official Honda/Acura service manuals, automotive electrical system standards, and professional repair experience. It does not have a single specific source. For precise reference to the official guide of a particular vehicle model, it is recommended to consult the corresponding year's original equipment manufacturer (OEM) service manual (e.g., Honda Service Manual).
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