Repair and Toyota Corolla car operation - 8.2.1. Coupling elements//Toyota Corolla of 1992-1998 /

Toyota Corolla

1992-1998 of release

Repair and car operation



Toyota Corolla
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Systems of cooling, heating
+ 5. Fuel, exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmissions
- 8. Coupling and semi-axes
   8.1. Specifications
   - 8.2. Coupling
      8.2.1. Coupling elements
      8.2.2. Vyzhimna bearing and fork of switching off of coupling
      8.2.3. Main cylinder of a drive of switching off of coupling
      8.2.4. Working cylinder of a drive of switching off of coupling
      8.2.5. Hydraulic system of a drive of switching off of coupling
      8.2.6. The switch blocking start of the engine
   + 8.3. Semi-axis
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
+ 12. Electric equipment



8.2.1. Coupling elements

GENERAL INFORMATION

Damages

 


Prevention

The dust formed as a result of wear of a frictional material of coupling and postponed on elements of coupling, contains asbestos which is hazardous to health. Do not blow off and do not inhale it. Do not use gasoline or solvents on its basis for removal of this dust. It is necessary to use clearing liquid of brake system to wash away it in the pallet. Then elements of coupling are necessary for wiping dry a rag. The used rags and clearing liquid are necessary for placing in the tight marked capacity and to utilize.


Removal

PERFORMANCE ORDER
1. For receiving access to coupling elements usually from the car remove a transmission. If you remove the engine for a partition, it is recommended to use a case and to check a condition of elements of coupling and to replace those from them which wore out. In any case, cost of new elements of coupling will be much less those means and efforts which are necessary for spending for receiving access to coupling elements, removing the engine or a transmission therefore it is recommended to replace all elements of coupling, if only they not new or nearly in perfect tune. The following operations assume that for receiving access to elements of coupling the transmission acts in film.
2. Remove the working cylinder (see subsection 8.2.4). Suspend it so that it did not disturb work – a hose not obligatory to disconnect.
3. Remove a transmission from the car (see subsection 7.1.5 and subsection 7.2.8). Establish a support under the engine for that time while the transmission is removed from the car. It is recommended to use also the lift which would support the engine from above.

Prevention

If you use a jack, put between it and the oil pallet of the engine the wooden block or a board for loading distribution.

The place of connection of a tube of the return pipeline is located very close to the bottom of the oil pallet. If the pallet is will bend or is deformed, the engine can not receive enough greasing.


4. The fork of switching off of coupling and vyzhimny while can be not removed the bearing from a transmission.
5. To support a conducted disk of coupling at removal, insert the tool for coupling centering into the disk plug.
6. Carefully examine a flywheel and press a disk and find index marks. Such marks usually are X, About or a white letter. If you cannot find them, put the marks in order that press then it was possible to establish a disk and a flywheel in initial situation.
7. Gradually turn off bolts of fastening of a press disk to a flywheel. Bolts turn off diagonalno, turning off each of them gradually while completely will not weaken pressure of a spring. Then, holding press a disk, get all bolts and remove press a disk and a conducted disk of coupling.

Check

PERFORMANCE ORDER
1. Usually, if with coupling there are problems, they are caused by wear of casing of coupling any of elements. Nevertheless, it is necessary to check all elements of coupling.
2. Examine a flywheel on existence of cracks, traces of an overheat, scratches or other damages. If the flywheel is not strongly damaged, its surface can be restored in a repair truck and to make equal and smooth. Operation of removal of a flywheel is described in subsection 3.1.1.14.
3. Examine a frictional material of a disk of coupling. He should act over heads of rivets at least on 1,587 mm. Check a coupling disk on existence of the loosened rivets, deformations, the cracks, the broken springs or other damages. Usually, the conducted disk of coupling is replaced each time when dismantling coupling, therefore if it not new or in perfect tune, replace it.
4. It is necessary to replace the bearing with Vyzhimna together with a coupling disk (see subsection 8.2.2).

5. Check a rubbing surface of a press disk and a plate of a diafragmenny spring. If the surface of a press disk is scratched or has any other damages, replace press a disk. Also, check it on existence of deformation, cracks and other obvious damages. It is possible to remove a glossy raid by means of a small emery paper. At replacement of a press disk it is possible to establish either a new disk, or restored.


Installation

PERFORMANCE ORDER
1. Before the installation beginning, carefully wipe surfaces of a flywheel and a press disk. It is very important, that on these surfaces or on a frictional material of a conducted disk there was no oil or greasings. Establish these elements only clean hands.
2. Establish a conducted disk and press a coupling disk, holding a conducted disk by means of the tool for coupling centering. Check, that the conducted disk was correctly established (on the majority of disks there can be flywheel side mark – this party to a flywheel – or something similar). If the mark is not present, establish a disk the party with dempferny mainsprings or laying to a transmission.
3. Acquire bolts of fastening of a press disk to a flywheel, but do not twist them while up to the end.
4. Establish a conducted disk of coupling precisely on the center of a casing of coupling, having inserted the centering tool via the disk plug into deepening in a cranked shaft. Turn the tool up-down or in the parties while it does not become into place. Twirl bolts of fastening of a press disk to a flywheel, twisting them gradually and in turn. Twist bolts in a diagonal order not to displace a coupling casing. After all bolts will be twirled, tighten them till the demanded moment of an inhaling specified in the section of technical characteristics at the beginning of this chapter. Get the centering tool.
5. Grease with high-temperature greasing an internal flute of the vyzhimny bearing (drawing at the left). Also put a little greasing on contact surfaces of a fork of switching off of coupling (drawing on the right) and on a bearing installation site on entrance to a transmission shaft (drawing at the left).
6. Establish the bearing of switching off of coupling (see subsection 8.2.2).
7. Establish into place transmission, the working cylinder of a drive of switching off of coupling and all other elements which were removed earlier, having tightened their fastenings till the demanded moment of an inhaling.