How to diagnose and eliminate clutch slippage?

Check that the clutch control system is all normal (especially to ensure the clearance between the separation finger and the bearing), carry out the vehicle rapid acceleration test, if the speed does not increase synchronously with the engine speed, it can generally be judged that the clutch slip, and one of the possible reasons for the clutch slippage is the lack of spring compression.

The phenomenon of clutch slippage.

When starting automatically, the clutch pedal is completely relaxed, and the starting power is still insufficient or difficult to start; When the car sail is excited, the speed does not increase with the increase of engine speed, and the driving is weak; When the car is driving uphill with heavy loads and on muddy and soft roads, the skidding phenomenon is obvious, and in severe cases, it will emit a burning smell from the clutch. Yandong.

Insufficient power when starting uphill or loading in a dry car.

The engine acceleration is weak while driving. When severely slipped, the clutch friction plates will smoke, have a burnt smell, and even burn out the friction plates.

Reason for failure. The clutch pedal free travel is too small or none.

Changes in the surface properties of friction plates, such as oil stains, ablation, hardening, cracking, exposed rivets, etc.

The clutch compression spring weakens or breaks, resulting in insufficient compression and slippage.

The pressure plate is too thin to wear and the compression spring is overstretched.

Uneven warping of the driving disc and driven disc leads to poor contact.

Troubleshooting methods.

Start the vehicle, tighten the parking brake, and engage the low gear to make the vehicle start normally. If the body does not move, the engine does not stall, and the clutch will slip.

Do not start the vehicle, put on low gear, tighten the parking brake, and shake the engine with your handlebars without pressing the clutch pedal. If it can be shaken, the clutch will slip.

1) Clutch slippage fault phenomenon.

When the car starts at low speed, after releasing the clutch pedal, the car cannot start or has difficulty starting; When the car accelerates, the speed of the car cannot increase with the increase of engine speed, so it feels weak during driving, and in severe cases, it produces a burning smell or smoke.

2) The cause of clutch slippage failure.

The clutch pedal does not have a free stroke, so the release bearing is pressed against the release core rod.

The friction plate on the disc plate, pressure plate or flywheel surface is seriously worn, and the clutch cover is loosely connected with the flywheel, which weakens the compression force.

The friction plate of the driven disc is oily, ablative, surface hardening, exposed rivets, and uneven surface to reduce the coefficient of friction.

Pressure springs fatigue or breakage, diaphragm springs fatigue or breakage, reducing the compression force.

The clutch control lever system is stuck, and the oil and dust between the separation bearing sleeve and the conduit are serious, and even cause stuckness, so that the release bearing cannot be returned.

The release rod is bent and deformed, causing motion interference and inability to return to its position.

3) Diagnosis and elimination of clutch slip fault.

Check the free travel of the clutch pedal and adjust it if it doesn't meet the regulations.

If the free stroke is normal, remove the gearbox, check that the connecting bolts between the clutch and flywheel are not loose, and if they are, tighten the bolts. Ridge buried.

If the clutch is still slippery, remove the clutch and check the condition of the disc friction plates. If there is oil stain, it can generally be cleaned and dried with gasoline, and then find out the oil stain** and remove it. If the friction plate is severely worn or the rivet is exposed, the driven disc should be replaced.

If the disc is in good condition, remove the clutch, check the compression spring, and replace it if the elasticity is too soft.

Summary. Hello Honored with your question 1 The clutch pedal does not have a free stroke, which makes the release bearing press against the release lever. 2. The friction plate, pressure plate or flywheel working surface of the driven disc is seriously worn, the clutch cover is loosely connected with the flywheel, the pressure spring is fatigued or broken, and the diaphragm spring is fatigued or cracked, which reduces the compression force.

3. The friction coefficient of the driven disc is reduced by oil, ablation, surface hardening, exposed rivets and uneven surface. 4. The clutch lever system is jammed, and the oil and dust between the separation bearing sleeve and the conduit are serious, and even cause stagnation, so that the separation bearing cannot be reset.

Hello Honored with your question 1 The clutch pedal does not have a free stroke, which makes the release bearing press against the release lever. 2. The working surface of the friction plate, pressure plate or flywheel of the driven disc is seriously worn, the clutch cover and the flywheel are loosely connected, the pressure spring is fatigued or broken, and the diaphragm spring is fatigued or cracked, so that the compression force decreases. 3. The friction coefficient decreases due to oil staining, ablation, surface hardening, exposed rivets and uneven surface of the friction plate.

4. The clutch lever system is jammed, and the oil and dust between the separating bearing sleeve and the conduit are seriously dirty, and even cause stagnation, so that the separating bearing cannot be reset.

Precautions are as follows: 1. Check the free stroke of the clutch pedal, if it does not meet the regulations, the rubber should be adjusted. 2 If the free stroke is normal, the transmission housing should be removed, and the clutch and flywheel connection bolts should be checked to see if they are loose, and if they are loose, they should be tightened. 3 If the clutch is still slippery, the clutch should be removed to check the condition of the friction plate of the driven disc.

If there is oil stain, it can generally be washed and dried by land with gasoline, and then the oil stain** can be found and tried to be removed. If the friction plate is badly worn or the rivets are exposed, the driven disc should be replaced. 4 If the driven disc is in good condition, the clutch should be disassembled, such as the side check the compression spring, if the elastic force is too soft, it should be replaced.

The following is a specific introduction to the causes of clutch slippage and the methods of dealing with clutch slippage: 1. Causes of clutch slippage: If the clutch is not in place, grab the gear or take off the Senhui file.

A sports car in a semi-clutch state for a long time. If the gear or disgear is not in place, the car will slam the throttle when the gear is not fully in place, causing abnormal loss of the clutch. Caused by incorrect driving habits.

Stepping on the clutch for a long time instead of neutral and splitting will also cause the clutch to slip. 2. Handling method: When the clutch slips, you can go to a professional institution to check the clutch.

Troubleshooting methods:1. Start the vehicle, tighten the parking brake, and hang the low gear to make the vehicle start normally.

If the body does not move, the engine does not stall, and the clutch will slip. 2.Do not start the vehicle without pressing the clutch pedal, engage the low gear, tighten the parking brake, shake the engine with the handle.

If so, the clutch will slip.

Clutch slippage is an unavoidable problem in the use of manual transmissions, dual-clutch transmissions, and AMT mechanical automatic transmissions. Clutch plates are only durable consumables, and the state of wear is related to each and a half linkages. When the vehicle is moving, the clutch and engine flywheel are in a combined state, and the combined engine speed is the same as the input shaft speed fixed by the clutch, so there is no wear in this state.

However, during the start and shift process, the clutch cannot be completely disengaged or combined, but requires semi-linkage. Semi-linkage is an unstable operating state of the clutch. Stable bonding means that the driven disc (which can be understood as the clutch plate and friction plate) is pressed by the pressure plate and is combined with the flywheel.

The purpose of pressing the clutch pedal is to reduce the pressure on the pressure plate, and the front slide surface pressure to the end will "separate" the disc from the flywheel, which is the role of the clutch pedal.

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