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Type :
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clutch plate
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Specification :
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Pulley :
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14
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Brand :
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NUOJIN
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Number :
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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 installation of the clutch disc (driven plate) in Mitsubishi manual - transmission passenger vehicles, such as the Pajero, Lancer, and L200, must adhere to the four original - factory - specified principles of Component Cleaning and Inspection, Correct Orientation, Coaxial Alignment, and Precise Torque Application. The core basis for this procedure lies in Mitsubishi's original service manuals and the supporting standards for engines like the 4M40 and 6G72. Below is the standardized installation method.
Key Operation Points: Clean the friction surfaces of the flywheel, pressure plate, and clutch disc using a dedicated clutch cleaner. Gasoline and diesel are strictly forbidden for this purpose. After cleaning, wipe the surfaces dry with a clean, lint - free cloth to ensure no oil, rust, or fiber residues remain. Once the pilot bearing is cleaned, apply an appropriate amount of grease to it.
Special Tools: Clutch alignment tool (matching the bore diameter of the crankshaft pilot bearing), flywheel locking tool, torque wrench (5–50N・m), and socket set.
Consumables: Lithium - based high - temperature grease (to be applied only to the splines), new pressure plate bolts (to be replaced once and not reused as they feature a locking design), clutch cleaner, and lint - free cloths.
Marked Discs: Install the side labeled "Flywheel Side" facing the flywheel and the side marked "Trans Side" facing the transmission.
Unmarked Discs: The side with protruding damping springs and the side with the longer splined hub should face the transmission. Reversing the disc will lead to insufficient pedal travel, incomplete disengagement, and burnout of the clutch disc.
Lock the flywheel with a flywheel locking tool to prevent crankshaft rotation.
Apply a minimal amount of lithium - based high - temperature grease to the splines of the clutch disc, then wipe off any excess grease. Under no circumstances should the grease come into contact with the friction surfaces.
Insert the alignment tool into the splines of the clutch disc, and its other end into the crankshaft pilot bearing bore. Ensure the clutch disc is perfectly coaxial with the crankshaft and flywheel, and that it fits evenly and without inclination against the flywheel face.
Fit the pressure plate over the clutch disc, align the bolt holes, and make sure there is no gap between the pressure plate and the flywheel face.
Hand - tighten all pressure plate bolts (usually 6 in number) initially. Then, tighten them in a criss - cross pattern in 3 stages to the torque specified in the vehicle - specific manual. For most Mitsubishi models, the general torque range is 25–30N・m, with a torque deviation of ≤±2N・m.
After tightening, check that the alignment tool has no noticeable play when shaken, and there is no gap between the pressure plate and the flywheel.
Once all pressure plate bolts are securely tightened, pull out the alignment tool slowly and vertically. Do not pry it or use brute force, as this could displace the clutch disc.
Manually rotate the pressure plate to check that the clutch disc operates without jamming or uneven wear, and that the diaphragm spring fingers move freely without any sticking.
These precautions are based on Mitsubishi’s original service manuals (applicable to models such as the Pajero, Lancer, and L200) and general technical specifications for automotive clutch installation. They focus on four core principles—correct orientation, coaxial alignment, precise torque application, and contamination prevention—which directly determine the assembly quality and service life of the clutch.
No oil, water, metal shavings, or fiber debris shall remain on the flywheel face, pressure plate friction surface, or clutch disc friction surface. Use only a dedicated clutch cleaner for cleaning; gasoline and diesel are strictly prohibited (they tend to leave an oil film that can cause clutch slippage and failure). After cleaning, dry the surfaces with a clean, lint - free cloth—never use cotton yarn or lint - shedding rags.
After cleaning the pilot bearing, apply a small amount of lithium - based high - temperature grease. The amount should be just enough to evenly coat the bearing balls. Excessive grease that overflows and contaminates the friction surfaces is strictly forbidden.
Pressure plate bolts feature a one - time locking design and must be replaced with new ones after removal—reuse is strictly prohibited (failure of the locking coating may lead to bolt loosening and clutch abnormal noise). When reinstalling an old pressure plate, align the flywheel - pressure plate balance marks made during removal. If there are no marks, do not reuse the pressure plate.
Use a Mitsubishi - model - specific clutch alignment tool (with specifications matching the crankshaft pilot bearing bore diameter and clutch disc spline size). Never substitute it with a transmission input shaft or screwdriver (this can cause coaxiality deviation, resulting in rough clutch engagement and judder). A flywheel locking tool is a must to prevent crankshaft rotation when removing or installing pressure plate bolts, which could damage the crankshaft oil seal or disrupt engine timing.
Calibrate the torque wrench in advance. Its measuring range should cover 5–50N・m to ensure a torque deviation of ≤±2N・m.
References：
These sources are categorized into three tiers by authority level: core original factory documents, industry general standards, and third-party practical references. All sources are traceable and verifiable, with details as follows:
Applicable Models: Manual-transmission Mitsubishi vehicles such as the Pajero, Lancer, and L200, paired with service manuals for engine series including the 4M40, 6G72, and 4G63 (e.g., Chapter 21B Clutch Overhaul in the original service manuals for Mitsubishi Lancer CJ5A/CJ7A, Pajero V93/V97, and Triton L200).
Key Quoted Parameters: Flywheel axial runout ≤ 0.15mm; pressure plate release finger height deviation ≤ 0.5mm; clutch disc rivet depth ≥ 0.3mm; general pressure plate bolt torque 25–30N·m (35–40N·m for high-torque models); lithium-based high-temperature grease applied only to splines; requirements for dedicated alignment tools.
Document Reference Number: Standard chapters 21B-1 to 21B-5 of Mitsubishi original service manuals, covering component inspection specifications, installation procedures, and torque standards.
Content Highlights: Guidelines for judging clutch disc orientation (damping springs/splined hub facing the transmission); alignment tool model matching (e.g., Mitsubishi clutch alignment tool MD998760 for Pajero models); operation specifications for flywheel locking tools (to prevent crankshaft rotation).
Source Basis: Clutch assembly technical bulletins from the Mitsubishi Technical Information System (TIS).
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