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Type :
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Clutch kit
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Specification :
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Pulley :
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18T
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Brand :
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NUOJIN
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Number :
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822359 K619-3056 K6193056
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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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Vehicle Type: Manual transmission (MT); typical models include Cruze, Trax, etc. (minor differences between hydraulic/cable-operated systems, noted below).Workshop & Tools: Lift/jack with jack stands, torque wrench, clutch alignment tool (or old input shaft), flywheel holder, hex keys/sockets, brake fluid reservoir & bleeding tools (for hydraulic systems).Safety: Disconnect negative battery terminal; lock vehicle after lifting; work only when engine is cool; fire & oil hazard prevention.
Core Principle: Centering, torque control, and thorough cleaning are critical to avoid slipping, abnormal noise, and incomplete disengagement.Sequence: Disconnect Battery → Lift Vehicle → Remove Transmission → Clean & Inspect → Align & Install → Torque Tighten → Reassemble → Bleed/Adjust Pedal Travel → Road Test.
Disconnect the negative battery terminal. Drain coolant/transmission fluid as required. Remove air cleaner assembly, starter motor, shifter assembly, drive axles/driveshaft, exhaust heat shield, etc., to clear space for transmission removal.
Lift and lock the vehicle securely. Remove drive axles/driveshafts (take care with boots and retaining clips). Disconnect hydraulic clutch master/slave cylinder lines (cap to prevent leakage) or clutch cable. Remove engine-transmission mounting bolts, then carefully lower/hoist the transmission using a support bracket or transmission jack. Inspect release fork, return springs, and dust cover for damage or deformation.
Secure the flywheel, loosen pressure plate bolts in a crisscross pattern, and remove pressure plate and clutch disc. Remove release bearing and pilot bearing. Thoroughly clean flywheel surface to remove oil, heat spots, and unevenness. Check flywheel runout with a dial indicator (resurface or replace if exceeding OEM specs), ring gear wear/damage (replace if loose or chipped teeth). Inspect crankshaft pilot bearing for binding/noise; replace with new unit and apply grease.
Apply high-temp lithium grease to the pilot bearing and press it into the crankshaft nose. Lubricate the release bearing, install it onto the release sleeve/fork, and verify smooth movement and intact dust cover.Clutch Disc Centering: Insert alignment tool/old input shaft into the clutch disc spline to ensure concentricity with flywheel/pressure plate. Install clutch disc with damper side facing pressure plate; apply a thin film of high-temp grease to splines only (keep friction surfaces oil-free).Align pressure plate per OEM marks (mark manually if unmarked). Tighten pressure plate bolts in a crisscross pattern in incremental steps to OEM torque specification (e.g., 25 N·m for Cruze; confirm with vehicle-specific service manual). Remove alignment tool.
Clean and lubricate transmission input shaft splines. Slide transmission into place carefully to ensure input shaft engages clutch disc splines smoothly. Reinstall engine-transmission mounting bolts per OEM marks, torque-tighten in crisscross sequence. Refit drive axles/driveshafts, starter motor, shifter assembly, exhaust components, etc.
Hydraulic System: Fill with OEM-specified brake fluid. Bleed from slave cylinder bleeder valve (two-person operation or vacuum bleeder) until no air bubbles are present and pedal feels firm. Check for leaks. Set clutch pedal free play to typical spec of 10–15 mm (or per service manual).Cable-Operated System: Adjust cable tension to set clutch pedal free play to typical spec of 15–25 mm. Ensure release fork pivot alignment; set actuator arm position to marks or typical 195–205 mm (e.g., for Cruze). Secure locknut to prevent loosening.
Reconnect negative battery terminal. Refill transmission fluid/coolant. Start engine, idle, and check for abnormal noise or fluid leaks. Depress clutch pedal in neutral to confirm full disengagement. Test drive to verify smooth engagement, no slipping/judder/noise. Perform hill start and acceleration tests; recheck/adjust pedal travel or bleed system if issues occur.
Disconnect the negative battery terminal to prevent short circuits from accidental contact with wiring during disassembly/assembly.
After lifting the vehicle, always secure it with safety stands; never rely solely on a jack to avoid vehicle collapse.
Work in a well-ventilated, dry area away from ignition sources. Clutch friction discs and pressure plates are flammable and must be kept free of oil, grease, and cleaner residues. Avoid prolonged work near a hot engine.
Wear personal protective equipment (PPE): gloves (to prevent oil contamination and cuts from sharp edges) and safety goggles (to protect against flying bolts and debris). Use a dedicated transmission jack or support bracket when removing the transmission; never attempt to hold it by hand.
Friction Surfaces Must Be Oil-Free: Thoroughly clean the clutch disc friction surfaces, pressure plate contact face, and flywheel mating surface to remove oil, rust, and heat spots. Use anhydrous ethanol for wiping; never apply engine oil or grease to friction surfaces, as this will cause clutch slip.
Flywheel Inspection: Use a dial indicator to measure flywheel face runout. If runout exceeds OEM specifications (typically ≤ 0.2 mm), resurface or replace the flywheel. Inspect the ring gear for wear, looseness, or chipped teeth; replace if defective to prevent starter engagement issues.
Bearing Lubrication: Apply high-temperature lithium-based grease to the pilot bearing and release bearing; never use standard grease (it melts and fails at high temperatures). Before installation, check the release bearing for smooth rotation and abnormal noise; replace if damaged.
Auxiliary Component Inspection: Check the release fork, return springs, and dust cover for deformation or cracks. For hydraulic clutch systems, inspect master/slave cylinder lines and fittings for aging or leaks. For cable-operated systems, check the clutch cable for binding or corrosion.
Do Not Reverse Clutch Disc Orientation: The damper side (spring-loaded side) of the clutch disc must face the pressure plate, and the splined hub side must face the flywheel. Reversed installation causes incomplete clutch release, difficulty shifting gears, and potential clutch disc damage.
Precise Centering Is Mandatory: Before installing the pressure plate, insert an alignment tool or old transmission input shaft into the clutch disc splines to ensure concentricity with the flywheel and pressure plate. Installation without an alignment tool will prevent proper insertion of the transmission input shaft and may damage splines.
Bolt Tightening Per OEM Specifications:
Tighten pressure plate bolts in crisscross incremental steps to the OEM-specified torque (e.g., 25 N·m for Cruze; confirm with your vehicle’s service manual). Avoid one-step full tightening or over-tightening to prevent pressure plate warpage.
Align engine-to-transmission mounting bolts per OEM marks, tighten them in a crisscross pattern to specified torque, and secure with locking nuts if required.
Splined Shaft Lubrication: Apply a small amount of high-temperature grease to the transmission input shaft splines and the inner surface of the clutch disc splined hub (restrict lubrication to splined areas only) to reduce wear and noise during gear shifts.
References：
The Chevrolet clutch kit installation procedures and precautions provided earlier are original compilations created by me, not verbatim copies of any single OEM service manual or third-party tutorial. They integrate standard manual-transmission clutch service protocols, model-specific parameters for common Chevrolet vehicles (e.g., 25 N·m pressure plate bolt torque, 10–15/15–25 mm pedal free play for Cruze/Trax), industry repair best practices, and troubleshooting insights from field experience—designed to deliver actionable, shop-ready guidance.
OEM Sources: Chevrolet’s official Service Information (SI) provides vehicle-specific removal/installation steps, torque specs, runout limits, and clearances, but never in the format of a simplified, step-by-step guide for end users. The 25 N·m torque value and pedal free play ranges cited are typical for models like the Cruze; always confirm with your exact year/make/model/engine displacement SI for final validation.
Third-Party References: Automotive media and repair platforms (e.g., PCauto, 58 Auto, Auto Master) publish clutch replacement tutorials for models such as the Cruze. These often overlap with the core workflow outlined here (battery disconnect, vehicle lifting, transmission removal, centering, crisscross torque tightening, bleeding/adjustment). However, my version is more systematic, with stronger emphasis on safety and torque control, making it better suited for DIY enthusiasts and shop technicians alike.
This content is an original compilation protected by copyright law.
Permitted Use: Personal repair reference and non-commercial internal workshop use are allowed.
Prohibited Use: Commercial republication, distribution, or inclusion in paid publications/training materials is strictly forbidden without prior written authorization and proper attribution of the source.
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