What are the causes of car scrambles? What is the reason for the out of gear in the car?

Hello, the car is out of gear, which is the so-called gear jumping, which has a great impact on the car, and the main reasons are:

1. The connecting rod mechanism of the gear is out of balance, and the gear is not bottomed.

2. The gear gear in the transmission is worn, the lock ring and the synchronizer are seriously worn, the gear spring is out of order, and the steel ball falls off

I hope it helps, I hope and thank you!

1. Still push the gear lever into this gear, then remove the transmission cover and check the gear mesh.

2. If the gear is not completely meshed, push the gear or gear sleeve that has been disconnected by hand to mesh correctly, and check whether the shift fork is bent or abrasive, whether the fixing screw of the shift fork is loose, and whether the gap between the fork end and the gear groove is too large.

Extended information: manual transmission cars, left-hand steering wheel vehicles, transmission lever is installed on the right side of the driver's seat, or on the steering column, the grip of the transmission lever, the palm of the right hand is attached to the ball head, the five fingers naturally hold the ball head, when operating the gear lever, the eyes are looking ahead, the right hand accurately pushes and pulls out the gear with the strength of the wrist, and the gear lever ball head can not be held too tightly, so as to adapt to various gears and different directions.

The transmission is divided into neutral, forward and reverse gears. In the forward gears, there are low, medium and high gears. The gear lever is now in neutral, and above it is 3 gears; Below is 4 gears; Move the gear lever all the way to the left, with 1st gear above; Below is 2 gears; Move the gear lever all the way to the right, with 5th gear above; Below is the reverse gear, which is denoted by an "R".

The transmission sequence is , r.

1. The interlock device is damaged, 2. The ball hole of the gear lever is worn out and loose, 3. The length of the lower end of the gear lever is insufficient, the working face is worn too much, or the fork shaft groove is worn too much.

Hope mine is helpful to you, hope.

Reasons for the scrambled:

1. The arc working surface at the lower end of the gear lever is worn or taken out, and the ball head of the gear lever is worn too much;

2. The positioning pin of the gear shift head is loose. The dowel pin is worn or out of place, and the ball joint of the gear lever is worn too much;

3. The locking pin or lock ball in the interlocking mechanism of the variable speed fork shaft is worn too much (exceeded, and the interlocking effect is lost.

The transmission is out of gear when the clutch is in normal technical condition, the gear lever can not be engaged in the required gear, or can not be returned to neutral after being in gear, or two gears can be engaged at the same time, that is, the so-called transmission out of gear.

Fault judgment and elimination: Cong Bu.

The gear lever can swing arbitrarily and turn into a circle, but the positioning pin is broken and the control is lost. If it can swing a lot, it means that the positioning pin is worn too much and even causes chaos, and it should be replaced.

If you can't hang the required gear, and the gear lever position is not too late, you can hang it into another gear or go out of the gear fork guide block, then the working surface at the lower end of the gear lever is too worn and should be repaired.

If two gears can be hung at the same time, the interlock device is too worn out and should be repaired if the interlock function is lost.

The specific performance is that when the car is in the starting gear or in the driving gear, the gear hung does not match the required gear, or although the required gear is hung but cannot be returned to neutral, and there is no way to transmit engine power after hanging the two gears of the cover silver.

There are five main reasons for the transmission eggs, the first is the loose wear, damage, loss of the gear head positioning pin, or excessive wear of the ball closure head;The second is that the working surface of the lower end of the gear lever and the groove of the fork guide block are excessively worn;The third is the groove of the interlock device, the wear of the lock pin and the wear of the pin ball to the loss of roundness;Fourth, the support ring on the output shaft is not installed or out of the car, and the lock nut is loose or out of the car, which causes the wheel to slide arbitrarily on the axle and enter the gearFifth, the needle roller bearing is sintered where the input shaft and the output shaft are connected, and the connection becomes one. If the gear lever is found to be able to rotate in a circle, it means that the ball dowel pin is worn short or has fallen off. And if the gear lever shift becomes larger, the gear cannot be pushed out, it means that the working surface at the lower end of the gear lever is caused by wear.

1. Still push the gear lever into this gear, and then remove the transmission.

cover to inspect the gear mesh.

2. If the gear is not completely meshed, push the gear or gear sleeve with your hand to mesh correctly, check whether the shift fork is bent or abrasive, whether the fixing screw of the shift fork is loose, and whether the gap between the fork end and the gear groove is too large.

Extended Information: Manual Transmission Cars.

In left-hand steering wheel vehicles, the transmission lever is installed on the right side of the driver's seat, or on the steering column, the control of the transmission fluid lever is held, the palm of the right hand is attached to the ball head, and the five fingers naturally hold the ball head, when operating the gear lever, the eyes are fixed on the front, and the right hand accurately pushes and pulls out of gear with the strength of the wrist.

The gear lever ball joint is not too tight to grip in order to adapt to various gears and different directions.

The transmission's gears are divided into neutral, forward and reverse. In the forward gears, there are low, medium and high gears. The gear lever is now in neutral and the destroyer above it is in 3rd gear;Below is 4 gears; Move the gear lever all the way to the left, with 1st gear above; Below is 2 gears; Move the gear lever all the way to the right, with 5th gear above; Underneath is the reverse gear, which is denoted by "R".

The transmission sequence is , r.

Car Shifts: 1) Phenomenon: When the car accelerates or climbs over a slope with a heavy load, the gear lever sometimes automatically jumps back to the neutral position from a certain gear.

2) Reason: A pair of clutch-type gears that are meshed are worn into a tapered shape at the meshing part;

After the gear is hooked, the gear meshing does not reach the full length of the gear tooth or the self-locking steel ball does not enter the groove;

For transmissions with multiple constant gear gears, the axial clearance or radial clearance of the constant gear mounted on the second shaft is too large;

The self-locking installation lacks the beam and grooves, the steel ball is seriously worn or the self-locking spring is fatigued and broken.

Car disorder: 1) Phenomenon: In the case of complete clutch separation, the fiber gear cannot be hung or the gear cannot be removed; Sometimes you have to hang a certain file, and it ends up hanging on another file.

2) Reason: Interlock device is damaged;

The length of the lower end of the gear lever is insufficient, the lower end of the working face is too worn, or the guide groove of the guide block on the variable speed fork shaft is too worn;

The gear lever ball joint positioning pin is loose or broken, or the ball head and ball hole are too worn.

This must be a problem with your gearbox, because the gearbox family burns directly to control the gear, when the gearbox working line is too long, so that the machinery is aging in which state of damage, there will be a chaotic Li Suiyuan reason.

Solution steps: 1. Still push the gear lever into this gear, then remove the transmission cover and check the gear mesh.

2. If the gear is not completely meshed, push the gear or gear sleeve that is out of gear by hand to mesh correctly, and check whether the shift fork is bent or sharp, whether the fixed screw of the shift fork is loose, and whether the gap between the fork end and the gear groove is too large.

The gear lever cannot be hung into the desired gear, or it cannot be returned to neutral after being put into gear, which is called out of gear.

The main reasons for the disorder:

1. The groove of the transmission fork shaft and the positioning ball are worn loosely, and the positioning spring is too soft or broken, resulting in the failure of the fixed device.

2. The shift fork is bent, over-sharpened or the fixing screw is loose, so that the gear cannot be meshed normally.

3. The gear or tooth sleeve is worn too much, and it is ground into a conical shape along the tooth length.

4. The variable speed shaft or bearing is worn loosely, so that the shaft rotates and runs.

5. The gear nut or circlip on the transmission shaft fails, causing the gear to move.

Fault diagnosis and troubleshooting

1. When you find that a gear is out of order, still push the gear lever into the gear, and then remove the transmission cover to check the gear meshing, if the gear mesh is good, you should check the gear shift mechanism.

2. Push the shift fork test positioning device with your hand, if the positioning is poor, you need to remove the shift fork shaft and check the set ball and spring. If the spring is too soft and broken, it should be replaced, and the groove of the shift fork shaft should be repaired.

Gear shift skills. 1. Shift gears steadily.

When shifting gears, the clutch must be pressed all the way down, and the gear shift should only be reached within the speed range specified by the mileage.

2. Shift gears quickly.

The key point of gear shift is to be fast, 100 meters plus and reduce gear must be completed within a certain distance, so there is a requirement for the hand speed, a shift command, with the fastest speed to complete the action of stepping on the clutch, shifting gears, and stepping on the accelerator.

3. Look ahead when shifting gears.

The syllabus stipulates that points will be deducted if you look down when changing gears. When hanging gear, the force should be light, avoid violent, if you use too much force, it is easy to hang the wrong gear, and you must use light force to achieve fast.

4. Shift gears step by step.

It is strictly forbidden to jump shifts in the road test, and the order of gear replacement can only be from one gear to second gear, and second gear to third gear step by step, otherwise points will be deducted. If you accidentally put the wrong gear, you can immediately press the clutch, return the gear to neutral, and then re-engage the gear.

5. Starting gear control.

Don't believe the rumors that second gear starts faster and more steadily, starting gear should be in first gear. As long as the vehicle is from standstill to start, the gear should remain in first gear.

There are three locking functions in the shift control mechanism, self-locking, interlocking, reverse lock, self-locking function is to prevent the vehicle from jumping, interlock function is to prevent hanging several gears or out of gear at the same time, and reverse lock is to prevent you from suddenly hanging into reverse gear during driving.

There is a problem with the gear selector in the transmission, or there is a problem with the lock-up in the transmission.

Most of them are loose (not tightened after installation or maintenance) of the parallel cap of the stroke adjustment bolt (not tightened after installation or maintenance), resulting in incomplete separation or combination (non-artificial). processing methods; Recommissioning.

The (wire) pull cord for the shift is badly worn and about to break. processing methods; Replace the original factory or *** (non-artificial).

The shift fork is deformed or interrupted. processing methods; Dismantling the gearbox and replacing the fork (improper quality of materials and operation).

The gear teeth are guided at a leading angle, causing a jump gear (reverse gear). Disassemble the gearbox and replace the original gear or *** gear (the clutch is not clear or the operation is improper).

Fork forks? Gear clearance? Gear lever? Gear lock pins? Wait.

Answer hello friend, when the gear is needed, the result is hung into another gear: shake the gear lever, check its swing angle, if it is beyond the normal range, the fault is caused by the loose match between the ball head positioning pin and the positioning groove at the lower end of the gear lever or the ball head and ball hole are worn too much. If the gear lever swings 360°, the positioning pin is broken.

If the swing angle is normal, but it still can't be hung or taken off the gear, the fault is caused by the lower end of the gear lever coming out of the groove (the reason for the distraction is the wear of the arc working face at the lower end or the wear of the guide groove). If two gears are in place at the same time, the fault is caused by the failure of the interlock.

Reason for transmission out-of-gear:

Failure of interlock device: such as excessive wear of the fork shaft, interlocking pin or interlocking steel ball, etc.;

The arc working surface at the lower end of the gear lever is too worn or the groove of the paddle on the fork shaft is too worn;

The gear lever ball joint positioning pin is broken or the ball hole and ball head are worn too loosely.