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Type :
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ENGINE STARTER
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Specification :
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12V 1.6KW
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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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312005A2A01 12HONDA Honda eccentric
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Quality :
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NEW
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Delivery time :
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10DAY
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The installation of Honda's 12V 1.6KW starter motor must comply with safety specifications, strict torque standards, and component compatibility requirements. It is suitable for Honda's small or compact models such as the Fit and Civic. The specific installation method integrates the structural characteristics of Honda models and universal starter installation norms, with steps as follows:
Wear non-slip protective gloves and safety goggles. Do not wear metal accessories such as rings. First, turn off the ignition switch and disconnect the negative battery cable to eliminate the risk of short circuits or damage to vehicle electronic equipment during installation.
Verify that the model of the new starter is compatible with the target vehicle. Check that the starter housing has no cracks, the drive gear is free of wear, and rotates smoothly. Prepare tools including a 12mm box-end wrench, a 10mm wrench, a calibrated torque wrench, matching sockets, and wire harness clips. Meanwhile, clean the starter mounting surface on the engine to remove oil stains and rust. Inspect the flywheel ring gear—if there are broken teeth or severe wear, replace it before installation.
The starter is mostly located at the junction of the engine and transmission. For some models, it may be necessary to remove the intake resonator or bottom splash shield to expose the mounting position. Clear the wire harnesses blocking the surrounding area to reserve sufficient operating space.
Attach the starter to the engine mounting surface. Manually toggle the drive gear to ensure accurate alignment with the flywheel ring gear (no misalignment), ensuring smooth engagement between the two during subsequent startup and avoiding tooth skipping.
Secure the starter with 2–4 matching bolts (e.g., most Honda Civic models use 2 M12-spec bolts). Tighten the bolts to the standard torque of 37±2N・m using a torque wrench. Avoid insufficient torque (which causes vibration and abnormal noise during operation) or excessive torque (which may damage the engine block threads and starter housing).
Locate the starter's Terminal 30 (main power terminal), connect the main wire harness from the battery side, and tighten the terminal nut to 9.8±1N・m with a torque wrench. Use moderate force to prevent terminal breakage or poor contact (which causes overheating).
Slowly insert the control plug of the starter solenoid switch (S Terminal). Do not force insertion or removal to avoid bending the plug pins or internal wire detachment. Arrange the wire harness routing to avoid rotating components such as the engine pulley. Fix the wire harness with clips or electrical tape, and tighten the wire harness bracket bolts to 8.4±1N・m.
Reattach the previously removed intake resonator, bottom splash shield, and other components in sequence. Ensure all protective covers are properly installed. Then reconnect the negative battery cable, tighten the terminal nut, and check for no oxidation or loosening.
First, turn on the power for a no-load test to observe if the starter operates smoothly without abnormal noise. Then start the engine and check if the starter can drive the flywheel to run smoothly. If startup is weak, verify that the battery voltage is ≥12.3V. If there is abnormal tooth-skipping noise, readjust the starter installation angle or inspect the flywheel ring gear.
Non-Negotiable Power Disconnection Process: Throughout the installation, always turn off the ignition switch first and disconnect the negative battery cable (Honda models prioritize negative terminal disconnection to avoid triggering electronic system protection). Reconnect the negative terminal only after all mechanical fixings and wiring connections are fully completed. Never touch starter terminals, wire harness connectors, or metal components when the power is on, as this may cause short circuits, sparks, damage to the ECU (Electronic Control Unit), or electric shock.
Mandatory Protective Equipment: Wear non-slip protective gloves and safety goggles at all times. Avoid direct contact between hands and battery terminals or starter metal terminals during operation. Do not wear metal accessories such as rings, watches, or bracelets to prevent accidental electrical conduction, which could lead to short circuits or personal injury.
Environment and Tool Safety: Select a flat, dry, and well-ventilated working area, away from flammable and explosive materials (e.g., gasoline, cleaning agents). Use tools with good insulation performance, such as socket wrenches and calibrated torque wrenches, ensuring they are free from damage or stripped threads. Prevent tool slippage to avoid damaging the engine block, wire harnesses, or causing personal injury.
Electronic System Protection: Honda models feature sophisticated electronic control systems. Do not pull, bend, or squeeze wire harnesses (especially S Terminal control lines and sensor harnesses) during installation, as this may damage the insulation layer or internal conductors. Never use metal tools to directly pry precision components such as the starter solenoid switch or terminals, to prevent damage to electronic components.
Starter Fixing Bolts: Tighten to a torque of 37±2N・m using a calibrated torque wrench. Manual tightening or over-torque operation is strictly prohibited. Insufficient torque will cause vibration, abnormal noise, or even bolt loosening and detachment during starter operation. Excessive torque may damage the engine block threads, starter housing threaded holes, or deform the housing.
Main Power Terminal (Terminal 30) Nut: Control the torque within 9.8±1N・m. Excessive torque is likely to cause metal fatigue and fracture of the terminal, while insufficient torque will increase contact resistance, leading to overheating and ablation of the terminal and wire harness connector during startup.
Wire Harness Bracket Fixing Bolts: Tighten to 8.4±1N・m to ensure the wire harness is securely fixed without crushing the insulation layer.
Before installation, thoroughly clean the engine mounting surface and the starter's fitting surface to remove oil, rust, residual sealant, and other impurities. Ensure tight fitting without gaps; otherwise, installation deviation may occur, resulting in abnormal meshing (tooth skipping, accelerated wear) between the drive gear and the flywheel ring gear.
After attaching the starter, manually toggle the drive gear to confirm proper meshing depth with the flywheel ring gear (no jamming, seizing, or excessive clearance). The standard meshing clearance for Honda models is 0.3-0.8mm. If meshing is poor, adjust the starter installation angle or inspect the flywheel ring gear for broken teeth, deformation, or severe wear. Replace the ring gear if it fails to meet requirements before proceeding with installation.
References：
The precautions for installing Honda's 12V 1.6KW starter motor mentioned earlier are not derived from a specific exclusive model maintenance manual or a single authoritative document issued by Honda. Instead, they are summarized and integrated based on universal starter installation specifications in the automotive industry, maintenance characteristics of Honda models, and practical experience from mainstream auto repair platforms. The specific reference sources are as follows:
Many basic precautions in the content are consistent with the universal standards of the auto repair industry. For example, prohibitions such as avoiding brute force hammering on the starter and using special pulling/pressing tools to install tightly fitted components align with the core taboos for starter disassembly and assembly shared on Autohome, as well as the starter assembly taboos mentioned in PCauto Encyclopedia. Requirements such as cleaning the mounting surface before installation and conducting a no-load test after installation are also consistent with the universal starter installation and testing processes summarized by PCauto. Additionally, the specification of disconnecting the negative battery cable first during installation is a universal safety guideline for automotive electrical component installation.
The key torque values mentioned in the precautions correspond to industry universal standards and parameters of similar vehicle models. For instance, the torque of 37±2N・m for the starter fixing bolts is a common universal standard for the installation of 12V medium and small-power starters. The torque requirements of 9.8±1N・m for the main power terminal and 8.4±1N・m for the wire harness bracket also comply with the universal torque specifications for fixing automotive electrical terminals, which are suitable for the wiring and fixing needs of such medium and small-power starters.
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