According to the manuals, the frequency with which the clutch on a Toyota Corolla should be replaced is approximately 45-55 thousand kilometers. The average cost of this procedure, if you take the car to a special service, will cost around $500-700 including a clutch kit. It is not a fact that the craftsmen who will make the replacement will not install a Chinese analogue on the robot instead of the original kit, but for the same money. Therefore, given all these facts, it is not surprising that an increasing number of motorists are deciding to carry out this procedure on their own. Moreover, there is nothing more complicated about it!
I would like to immediately note that, in principle, there is no fundamental difference between the original Toyota Corolla clutch kit and its Chinese counterpart. Both the first and second have proven themselves equally well in field conditions, but the price for them will differ significantly, and not in favor of the original. Replacing a robot clutch with a Chinese kit will cost approximately half as much.
Why do you need a clutch?
To smoothly and evenly transmit torque to the drive wheels, the car is equipped with a transmission system. In this system, the main role is played by the gearbox and clutch.
A flywheel is rigidly attached to the drive shaft of the motor, the crown of which, after turning on the ignition, is connected with splines to the starter gear. The starter wheel turns the flywheel, which starts the crankshaft and the engine itself. After starting the engine, the starter is turned off, and Bendix returns the shaft with the starter gear to its place, and the flywheel continues to rotate with the engine.
Car clutch kit
In addition to starting the engine, the flywheel is responsible for transmitting rotation from the engine crankshaft to the gearbox. More specifically, it is the drive disc in the clutch system.
The gearbox is responsible for changing gears and transmitting a certain torque to the drive wheels, most suitable for specific driving conditions. To ensure that the engine runs without stopping while changing gears, a clutch is provided.
Wheels and tires for Toyota Corolla 120
The drilling of the E120 disk is made according to a completely different pattern than in previous models: 4 holes are located along a diameter of 100 mm. marked 4x100.
The parameters of the disk width, as well as the diameter, are presented in a large range of values. The widths are 5.5, 6 and 7.5, and the sizes are 14, 15, 16 and 17 inches. Large wheels make it possible to realize the dream of many car enthusiasts to install large wheels on their car. However, we must remember that there are always pros and cons of large diameter disks. Four models have a 45 mm disc offset and only one 40 mm, all of them are radial in shape and have a J-shaped lip.
E120 wheel markings: 5.5JxR14 ET45, 6JxR15 ET45, 6JRx16 ET45, 6JxR16 ET45, 7.5JRx17 ET40.
Corolla tires produced in 2006, as well as previous releases starting from 2001, brand E 120 are also presented in five types; 175-70 R14 84H, 195-60 R15 88V, 195-55 R16 87V, 205-55 R16 91V, 215-40 R17.
The combination of parameters makes Corolla tires unique. Tire widths form a range with values of 175, 195, 205 and 215, which in combination with profiles: 70, 60, 55, and 40, as well as diameters: 14, 15, 16 and 17, determines the unique size of each type of tire. The recommended tire pressure for all types of tires is 2.2 atm.
Tires for Corolla
In addition to the standard size, tires differ in the season of operation. According to this indicator, tires are presented in winter, summer, and also universal ones. To ensure resistance to high temperatures, hard rubber is used to produce summer tires.
For winter with negative temperatures, tires are made of soft rubber. Summer and winter tires differ in shape, as well as tread depth, the presence of studs, which is due to seasonal operating conditions: frost, snow, ice in winter and heat, water, mud in summer. However, to improve vehicle handling within the season, summer and winter tires are also equipped with treads with different patterns.
It will be useful: How often should you change spark plugs in a car?
According to the tread pattern, there are 3 types of summer tires: symmetrical non-directional, asymmetrical non-directional and asymmetrical directional . Protectors with symmetrical non-directional graphics are considered universal. They are used for moderate driving around the city. A tire with an asymmetrical non-directional graphic has a different pattern on the inside as well as the outside. These tires are optimal for fast driving on wet roads. The grooves on the asymmetrical directional treads form an “arrow-shaped” graphic. The optimal conditions for driving fast with these tires are dry weather.
Similar to the summer season, there are 3 types of winter tires: Nordic-type studded tires, Scandinavian-type non-studded friction tires and European-type non-studded friction tires . Nordic-type studded tires are designed for driving in icy conditions at temperatures from zero to minus twenty-five degrees. Scandinavian-type studless friction tires are suitable for driving on snow at temperatures up to fifty degrees below zero. Studless friction rubber of the European type is used in warm winter conditions in the temperature range from five degrees Celsius to twenty degrees below zero.
Universal all-season tires are designed for year-round driving. However, they are worse than winter tires in winter and worse than summer tires in summer. It is clear that all-purpose tires will not be able to provide as much grip when driving on roads covered with ice and snow as, for example, studded tires. Therefore, it is better to wear shoes according to the season.
Clutch operating principle
The clutch performs the function of smoothly interrupting and supplying torque from a running engine to the input shaft of the gearbox. The key part of the unit is the driven disk, consisting of mutual friction plates that have an increased level of friction, the hub and reducing torsional vibrations of the damper springs.
The task of pressing the clutch disc to the flywheel is performed by a basket, inside of which there is a pressure disc. While driving, the surface of the pressure plate tightly presses the friction clutch, ensuring contact between the engine and the gearbox.
To turn on the speed and move away or change gear while driving, the driver presses the clutch pedal and exerts a force on the release bearing fork. This, in turn, presses the leaf spring of the clutch basket, which is part of the pressure plate.
Under the pressure pressure of the bearing, the upper part of the spring petals is pressed inward, and the lower part goes outward, raising the pressure disk, releasing the clutch friction clutch.
Consequently, by pressing the clutch pedal, the driver smoothly interrupts the transmission of torque to the box and can switch the required speed, and then slowly release the pedal and move away or continue driving. In this case, the engine runs without interruption. This is the principle of operation of the clutch, which explains the purpose of this unit in the car.
How to measure wheel bolt pattern on Toyota cars
- the number of holes for bolts, denoted by LZ;
- distance between bolts;
- diameter of the circle on which these bolts are located, designation PCD;
- the diameter of the central (or hub) window, designated as DIA;
- departure, designated ET.
Below are the wheel bolt patterns of the most common Toyota models:
- Toyota Avensis - bolt pattern 5×100, ET 35-38, dia 54.0;
- Toyota Camry (before 1990) - 5x100, ET 35-38, dia 54.0;
- Toyota Camry (after 1991) - 5x114.3 ET35-38, dia 60.0;
- Toyota Carina - 5x100, ET 35-38, dia 54.0;
- Celica - 5x100, ET 35-38, dia 54.0;
- Toyota Corolla - 4x100, ET 35-38, dia 54.0;
- Corona - 5x100, ET 35-38, dia 54.0;
- Hi-Ace - 5x114.3, ET 18-20, dia 67.0;
- Hi-Ace 4x4 - 6x139.7, ET 15, dia 108.0;
- Hi-Lux - 6x139.7, ET 15, dia 108.0;
- Land Cruiser - 6x139.7, ET 15, dia 108.0;
- Land Cruiser 200 - 5x150, ET40
- Toyota MR2 (until 1991) - 4x100, ET 35-38, dia 54.0;
- Toyota MR2 (after 1991) - 5x114.3, ET 35-38, dia 60.0;
- Paseo - 4x100, ET 35-38, dia 54.0;
- Toyota Picnic - 5×114.3, ET 35-38, dia 60.0;
- Toyota Previa - 5x114.3, ET 35-38, dia 60.0;
- Toyota RAV4 - 5×114.3, ET 35-38, dia 60.0;
- Starlet - 4x100, ET 35-38, dia 54.0;
- Supra (after 1992) - 5x114.3 ET 35-38, dia 60.0;
- Yaris - 4x100, ET 35-38, dia 54.0.
Example of a Land Cruiser Prado 150 bolt pattern
Why doesn't the clutch work?
Each individual clutch element has its own wear life. The most basic consumable of the unit is the friction clutch, because it is this element that experiences the highest load. The rubbing surface of the clutch becomes very hot, gradually wears off and becomes smooth.
As a result, over time, the engagement of the friction disc with the flywheel and gearbox is lost. It turns out that the engine runs and revs, but without the automatic transmission clutch, torque is not transmitted, and when changing gears the car still does not move.
If you handle the clutch assembly carefully, it will serve 150,000 km at a decent level.
Knock in Toyota clutch
Along with the friction clutch, other clutch elements suffer, including the basket diaphragm spring and release bearing. Often, when replacing a clutch, the entire set is changed, because even if the remaining parts, at first glance, are still alive at the time the clutch wears out, they may be on the verge of wear.
If we consider the breakdown of the clutch assembly, without its drive, we can highlight the following aspects in which the mechanism requires repair:
- Abrasion of friction plates, deformation or oiling of the clutch driven disc;
- Wear of the clutch driven disc and damper springs;
- Wear of teeth on the spline joints of the driven disk;
- Weakening of the diaphragm spring or breakage of its petals;
- Release bearing failure;
- Chips and depressions on the surface of the flywheel and pressure plate.
With such breakdowns, the clutch moves or sticks, the free play of the pedal increases, and shocks are felt. An increase in vibration may indicate wear on the damper springs that dampen torsional vibrations of the flywheel.
Also, the diaphragm spring of the basket gradually wears out. When pressed strongly, with a long delay, the steel blades of the diaphragm experience increased load, gradually bend, lose their uniform tower shape, and break.
Therefore, beginners are advised to release the clutch pedal at a traffic light, press sharply at the start, set the speed and slowly let it go until the car picks up speed well, and then completely release the pedal.
2008 Toyota Corolla bolt pattern
The 2008 Toyota Corolla belongs to the 10th generation, which was produced until 2012 in a sedan body. This is one of the most popular Toyota cars on modern Russian roads. Drivers value this model primarily for comfort, convenience, handling and reliability. Wheel replacement is usually necessary to replace factory iron wheels with cast or forged ones for decorative purposes. Tires are replaced with the change of seasons and as the tires wear out.
"Toyota Corolla"
In the tenth generation of Corolla, five disc options are available with this drilling pattern:
- 6JxR15 ET39;
- 6.5JxR16 ET45;
- 6.5JxR15 ET39;
- 7JxR16 ET45;
- 7JxR17 ET45.
For the 2008 Toyota Corolla, the manufacturer provides five tire sizes:
- 195-65 R15 91H;
- 195-60 R15 88T;
- 205-55 R16 91V;
- 215-45 ZR17 87W;
- 225-45 R17 93V.
If we talk about the ground clearance of the 2008 Corolla, it is 15 cm, which, according to reviews, suits all drivers. The length of the wheelbase is 2.6 m. The Corolla's bolt pattern is similar to that of the Toyota Auris and their wheels can be interchangeable.
Clutch replacement
On a Toyota Corolla, replacing a faulty manual clutch begins with the purchase of suitable parts and consumables. You will also need a set of tools, the help of a partner or a lifting device, as well as support if you carry out the procedure yourself.
Original clutch: article number, price + analogues
If you buy an original clutch package as a set with a clutch disc, basket and release bearing, the price for a set of original Aisin components will be about 10,000 rubles (product code KT-316A). You can also choose cheaper analogues: NIPPARTS (N2012007) or BLUE PRINT (ADT 330255) with an approximate cost of 6,000 and 9,000 rubles, respectively.
Tools and equipment
Before work, prepare a set of necessary tools and devices for dismantling the box:
- a torque wrench with a set of heads and extended wrenches for unscrewing bolts in hard-to-reach places. Also prepare open-end wrenches; they may be needed if, when unscrewing, the fasteners will spin and, in order to unscrew them, you will need to fix the fasteners on the reverse side;
- set of screwdrivers, hammer, pliers;
- large pry bar with flat end;
- a traverse, a winch or a device of similar function that can hold the gearbox and engine;
- jack for dismantling the drive wheels;
- something like a stand for the lower part of the gearbox (a hydraulic gearbox puller is best).
All of the above are just basic tools and devices. In the process of dismantling the box and replacing the clutch, you will need a lot of auxiliary equipment.
Hanging methods and safety measures
When replacing the clutch, you will need comfortable access to the underbody of the car. Otherwise it is impossible to dismantle the box. If the car owner has a well-equipped garage with an inspection hole, it is enough to fix the car over the hole and get to work.
In this case, important safety measures will be to prevent spontaneous movement of the machine. Therefore, after installing the car in the appropriate place, do not forget to turn on the parking brake, and for additional security, place anti-rolling shoes under the wheels.
Clutch pedal play
If there is no hole or lift, use the option of lifting the car with jacks. To do this you will need 4 jacks. You should jack up the car evenly on all four sides, when you raise the vehicle to a height acceptable for lower work, place wooden safety bars under the side members so that if it comes off the jack, the car will not collapse.
Disconnecting components, cables, removing drive shafts
To get to the clutch and replace the assembly, you will have to completely remove the box. Start removal under the hood and then continue under the car.
Under the hood
- Disconnect the negative terminal wire from the battery.
- Remove the air filter pipe by unscrewing the clamp on it. Then open the cover of the air cleaner housing, pull out the filter element, unscrew and remove the plastic filter housing.
- Remove the expansion tank of the engine cooling system.
- Disconnect the clutch cylinder along with the hydraulic line pipes.
- Disconnect the wire from the reverse light sensor switch, which is located on top of the transmission.
- Remove the ground wire on the gearbox by unscrewing the mounting bolt.
- Remove the cable from the gear shift levers. To do this, remove the mounting pins with small pliers and remove the washers.
- Remove the gearbox cable rods from the bracket, and also disconnect the plugs of all wires that are connected to the internal combustion engine and the gearbox. Next, attach the cables and wires to the top with wire so that they do not interfere.
- Unscrew the three bolts (2 on top, 1 on front) connecting the engine and gearbox.
- Unscrew the left engine block support cushion.
Toyota Corolla 150 wheels
E150 wheels
In the Toyota Corolla E 150 model, the wheel bolt pattern is made according to a pattern of five holes located in a circle with a diameter of 114.3 mm. The drilling of the disk has the already familiar marking 5x114. By the way, the term drilling is actually the technology of creating holes by drilling.
In the Corolla 150 model with this drilling, five types of wheels are available: 6JxR15 ET39, 6.5JxR16 ET45, 6.5JxR15 ET39, 7JxR16 ET45, and 7JxR17 ET45. Their width varies from 6 to 7 inches, and the disc size ranges from 15 to 17 inches. The offset is available in two options: 39 and 45 mm. All types have the same rim flange shape (J) and radial design (R).
Roller parameters for Corolla 150 are 6JxR15 ET39, 6.5JxR16 ET45, 6.5JxR15 ET39, 7JxR16 ET45, and 7JxR17 ET45.
Tires for 10th generation Toyota Corolla
For the Toyota Corolla 150, the manufacturer provides five types of tires: 195-65 R15 91H, 195-60 R15 88T, 205-55 R16 91V, 215-45 ZR17 87W, 225-45 R17 93V .
Tires for Toyota Corolla have diameter sizes of 15, 16 and 17 inches. The greatest variety in tire models comes from load indices, as well as speeds; all models differ in these parameters. But regardless of the listed features, the manufacturer recommends the optimal tire pressure of 2.2 atm.
