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Type :
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Clutch release bearing
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Specification :
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Pulley :
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Brand :
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NUOJIN
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Number :
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41420-75720A
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Quality :
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new
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Delivery time :
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30 days
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The core of installing a release bearing in a Hyundai vehicle involves first safely removing the transmission, cleaning and positioning components, assembling according to specified directions and torque values, correctly adjusting the release fork and clearances, and finally reassembling and testing. Below is the general process and key points (applicable to most Hyundai fuel-powered models; dual-clutch models require additional actuator calibration).
Secure the vehicle with the parking brake, disconnect the negative battery terminal, and secure the vehicle on a lift; support the engine to prevent sagging during lifting.
Prepare socket/torque wrenches, snap ring pliers, a clutch alignment tool (09411-11000), high-temperature grease, and a new release bearing (matching the original model, including seals and snap rings).
Check that the new bearing is undamaged and rotates freely; clean the release sleeve, release fork, and input shaft journal to remove oil, dirt, and rust.
Disconnect wiring harnesses, sensors, shift cables, and the clutch slave cylinder (bleed hydraulic systems first if applicable) connected to the transmission.
Remove the drive shaft (for rear-wheel drive) or half shafts (for front-wheel drive), loosen transmission mounting bolts, and separate the transmission using a dedicated lifting fixture.
Remove the clutch pressure plate and driven disc (loosen bolts diagonally to avoid deformation), inspect the crankshaft pilot bearing; remove the release fork shaft and old bearing (use snap ring pliers to remove the snap ring).
Reconnect wiring and slave cylinder in reverse order of removal, tighten transmission mounting bolts with a torque wrench (refer to vehicle manual, typically 42-50 N·m).
Two-person operation: repeatedly press the clutch pedal then loosen the bleed bolt until no air bubbles are discharged.
Bearing rotates smoothly, release fork moves without jamming; clutch pedal free travel is 15-25 mm.
After starting the engine, shift gears smoothly with complete disengagement, no bearing noise or heavy pedal feel; no slipping or shuddering at idle or under load.
Disconnect the negative battery terminal before installation to prevent wiring harness short circuits; after lifting the vehicle, secure it with safety stands for secondary fixation—never rely solely on the lift for support during operation; use a dedicated lifting fixture to support the engine when removing the transmission to avoid engine sagging that could pull pipelines or damage engine mounts.
For hydraulic clutches, first disconnect the slave cylinder oil pipe and seal the interface to prevent brake fluid leakage from contaminating components or entering the clutch friction surface; thoroughly bleed the system after reassembly, otherwise incomplete clutch disengagement will occur.
The sealed cover of the release bearing must face the outer side of the transmission (away from the flywheel end); reversing it will cause grease loss and dust intrusion, leading to abnormal noise or jamming in a short period;
The bearing snap ring must be fully seated in the sleeve groove; gently pull the bearing after installation to confirm no looseness—an improperly seated snap ring will cause the bearing to fall off and trigger transmission failures.
Uniformly apply high-temperature lithium-based grease (ordinary butter is prohibited) to the groove where the release fork contacts the bearing and the input shaft journal to avoid early wear from dry friction;
Tighten clutch pressure plate bolts diagonally in stages to the specified torque (25 N·m for general Hyundai models); single-step tightening or excessive torque will deform the pressure plate and cause clutch slipping.
Use a clutch alignment tool (Hyundai special tool 09411-11000) to center the driven disc; otherwise, gear shifting difficulties or clutch shudder will occur;
Control the distance between the release fork shaft drive arm and the cable nut bracket to 195-205 mm—excessive or insufficient clearance will cause abnormal clutch pedal free travel, leading to incomplete disengagement or poor return.
For dry DCT (e.g., 1.6T models), calibrate the actuator: pull the actuator push rod to the maximum stroke to ensure the dimension is 70.5-71 mm; uncalibrated actuators will cause gear shifting jolts or clutch overheating;
For wet DCT models, inspect the integrity of the release bearing oil seal—damaged oil seals will cause transmission oil leakage and contaminate clutch friction plates.
Check the release bearing model before installation (must match the vehicle displacement and transmission type); for example, the bearing specifications for Elantra 1.6L and Tucson 1.6T differ—mixing them will cause installation position offset or bearing jamming.
Static test: Rotate the bearing to check for smooth operation without abnormal noise; toggle the release fork to confirm sufficient stroke and no jamming; measure the clutch pedal free travel (standard: 15-25 mm);
Dynamic test: After starting the engine, shift into all gears in sequence to confirm smooth shifting without impact; no abnormal noise when pressing the pedal at idle, and stable clutch engagement without slipping or shuddering when releasing the pedal.
If bearing abnormal noise occurs, stop the engine immediately to inspect the installation direction, lubrication condition, and release fork clearance; prohibit operation with faults to avoid damaging the flywheel or clutch assembly.
Recheck the pedal free travel and bearing condition after the first 500 km of driving; regularly inspect the clutch slave cylinder fluid level—air intrusion or leakage in the hydraulic system will indirectly cause overload damage to the release bearing.
References：
The key precautions for installing the release bearing of Hyundai vehicles you requested are based on core authoritative sources, industry universal standards, and non-directly cited public information, which can be traced and verified as follows:
Torque parameters (25 N·m for pressure plate bolts), special alignment tool (09411-11000), installation of the release bearing snap ring with confirmation of a "click" sound, lubrication requirements for the release fork and bearing, etc., are all derived from the "Clutch System - Release Bearing Installation" chapter of official manuals for Hyundai models such as Elantra and Tucson, e.g., the 2012 Tucson G 2.7 DOHC and Elantra G4EC 1.5 DOHC MPI official manuals.
The manuals explicitly specify safety and precision clauses such as power disconnection, transmission removal and support, hydraulic clutch bleeding, component centering, and diagonal tightening.
Requirements for release bearing installation direction, seal protection, and snap ring locking comply with the industry standard JB/T 5312-2001 for automotive clutch release bearings.
Details such as clutch pedal free travel (15-25 mm), hydraulic system bleeding process, and selection of high-temperature grease refer to universal operation specifications in the automotive repair industry and technical guidelines from component manufacturers (e.g., LuK, Valeo).
Calibration parameters for dual-clutch actuators (e.g., 70.5-71 mm stroke for 1.6T dry-type) are sourced from special maintenance data for Hyundai Dual-Clutch Transmissions (DCT).
The content is not directly copied from popular science articles on third-party platforms such as Pacific Auto and Autohome. It is only structurally organized with reference to their universal industry operation processes, and core parameters and specifications are based on official manuals and industry standards.
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