Honda Civic/Acura Integra

since 1994 of release

Repair and car operation

Brake system

General information

Cars described in the real Management are equipped with hydraulic brake system with vacuum strengthening. On forward wheels disk brake mechanisms (see an illustration below) whereas mechanisms of back wheels can have as disk (see an illustration below), and a drum-type design are always established.

Typical scheme of an arrangement of components of the disk brake mechanism of a forward wheel

Typical scheme of an arrangement of components of the disk brake mechanism of a back wheel

All brake mechanisms have a self-regulating design. Thus compensation of wear of brake shoes of disk mechanisms (forward and back) is carried out automatically whereas, on drum-type brake mechanisms the special adjusting devices which activation occurs during braking, and also when raising the parking brake are established.

The dual design of the main brake cylinder (GTTs) equipped with two separate tanks allows to break a hydraulic path into two, operating independently from each other, a contour. The last means that in default one of the contours, the second continues to work as before, providing adequate braking of the car. Hydraulic contours have a diagonal arrangement. Refusal of any of contours, naturally, conducts to decrease in efficiency of braking and is accompanied by operation of a control lamp on an instrument guard when squeezing a pedal of a foot brake.

Main brake cylinder (GTTs)

GTTs is established on assembly of the servo-driver of the vacuum amplifier of the brakes, fixed on a back partition of an impellent compartment. From above on the cylinder the big tank of hydraulic liquid equipped with a plastic cover is located. Fastening of the tank is carried out by means of a collar.

As it was already mentioned above, GTTs has the dual design providing functioning of two independent hydraulic contours. Pressure of liquid in each of contours is forced by the individual piston in the main cylinder.

Valve regulator

Besides the vacuum amplifier the double-circuit regulator of pressure of back brakes is included in a hydraulic actuator of brake system. The valve regulator of pressure is established on a back partition of an impellent compartment of the car. On equipped with system of anti-blocking of brakes (ABS) the valve is built in the block of the hydraulic modulator located in the right part of an impellent compartment.

The valve regulator is switched on in both contours of brake system and provides pressure restriction in a hydraulic actuator of brake mechanisms of back wheels, preventing their premature blocking at sharp braking. The valve works on reaching hydraulic pressure in contours of some certain value.
The regulator is not maintainable and in case of failure is subject to replacement assembled.

Vacuum amplifier of brakes

The amplifier uses depression created in the inlet pipeline for increase of efficiency of functioning of a hydraulic actuator of brake system. The servo-driver of the vacuum amplifier is fixed on a back partition of an impellent compartment.

Parking brake

The control lever is located the parking brake in car salon. The driving cable unique to lobbies in turn connected to pair of back cables is attached to the lever. When raising lever on the models equipped with drum-type back brake mechanisms, back cables delay the executive levers attached to assemblies of brake boots in mechanisms of both back wheels. Thus boots get divorced in the parties, nestling on a working surface of drums. On models with disk brake mechanisms of back wheels executive levers are attached to actuation mechanisms of screw type in cases of supports. Levers influence pistons of supports, forcing blocks to nestle on brake disks.

Precautionary measures

At service of components of brake system of cars it is necessary to observe some special precautionary measures:

   a) For filling of brake system use only hydraulic liquid of the class DOT 3;
   b) Frictional overlays of brake blocks/boots can contain unhealthy asbestos. Try not to inhale a brake dust, do not blow off it the compressed air. To rubbing of components of brake mechanisms apply only special cleaning structures;
   c) Watch observance of all demanded admissions and efforts of a tightening of fixture. At service of components use only the serviceable tool. At the slightest doubts address for the help to experts. Remember that serviceability of functioning of brakes is guarantee of traffic safety;
   d) At all do not undertake attempts of an independent detachment of components of a hydraulic actuator of brake system on the models equipped with ABS. Remember that pumping of a hydraulic path on such cars is carried out by means of the special equipment;
   e) At the slightest signs of violation of serviceability of functioning of brake system operation of the car should be suspended!