Daewoo Nexia

Since 1994 of release

Repair and car operation

7.1. The general description

THE GENERAL DATA

Example of marks of a spark plug

THE LETTER DESIGNATIONS MEETING IN MARKS OF SPARK PLUGS, CHARACTERIZE CANDLE TYPE, AND DIGITAL DESIGNATIONS CONCERN THE SIZES OF THE CARVING SHAFT AND КАЛИЛЬНОМУ TO NUMBER: R – THE BUILT IN RESISTANCE FOR SUPPRESSION ELECTROMAGNETIC HINDRANCES 4 – DIAMETER OF THE CARVING 14 MM 3 – КАЛИЛЬНОЕ NUMBER Х – LENGTH OF THE CARVING 19 MM S – THE EXTENDED TIP

Decoding of symbols in marks of candles


The ignition system includes the storage battery, the distributor, the lock of ignition, a spark plug and a chain low and a high voltage.

On the majority of engines the contactless distributor with электрон ным regulation of a corner of an advancing of the ignition, uniting in itself all elements of system of ignition is established. The ignition coil is located in a cover of the distributor and connected by a brush with бегунком. Some engines are equipped by the distributor and the ignition coil in separate execution.

The magnetoelectric gauge which forms operating impulses is built in the ignition distributor and submits them on an input of the electronic block of ignition. The gauge consists of a rotor with constant magnets and the inductive coil. At прохожде нии a magnetic pole of a rotor by the inductive coil in last the alternating voltage is directed. The electric signal from the coil moves on an input of the semi-conductor block which forms a current in a primary chain of the coil of ignition (the high-voltage transformer). In certain phases of change of pressure in a chain of the inductive coil there is a sharp reduction of a current in a primary chain of the coil of ignition. Thus in a secondary winding of the coil of ignition the high voltage submitted the distributor of ignition on candles in an operating procedure of cylinders of the engine is generated. In the distributor the condenser for reduction of hindrances to radio reception is located. The corner of an advancing of ignition is regulated ЭБУ the engine on signals from the various gauges supervising power setting. On a case of refusal ЭБУ the duplicating system of regulation of a corner of an advancing of ignition is provided. In the given distributor vacuum and mechanical regulators are not used.

High voltage wires consist of the wire conductor impregnated with carbon structure and placed in isolation from silicone rubber. Diameter of wires of 8 mm. The material of isolation of wires well maintains heats and provides reliable electric isolation of a high voltage. Sealing caps are put on candles from silicone rubber. At dismantle it is necessary to turn away a protective cap on 1/2 turns. At connection with a candle control a lamp or other gauges it is necessary to show care. It is impossible to insert anything with effort between a cap of a candle and a wire or to pierce wire isolation. All connections should be carried out by means of special adapters to the in parallel basic chains. It is forbidden to pull for a high voltage wire to remove it from a candle tip. Wires should be removed, putting effort to a cap or using the special tool.

On all engines, except engines with aluminium heads of cylinders, spark plugs with a conic sealing facet (without a sealant ных rings) are applied. Resistance is built in spark plugs for reduction of electromagnetic hindrances. In usual operation of the car the Engine works on various modes: idling, at low, average and high turns of a cranked shaft. For normal work of spark plugs it is necessary to maintain periodically the Engine with full loading at high frequency of rotation of a shaft. It provides removal from candles of a deposit and other adjournment which are intensively formed at engine work idling or on unsteady modes, characteristic for city operation of the car. The central electrode of a candle is in an insulator made of a heat-resistant ceramic material. The insulator is condensed in the case of a candle and prevents charge breakdown on "weight" at which ignition is broken. It is not necessary to accept wrongly for breakdown or short circuit on ` "weight" коронный the category which is shown in a steady blue luminescence of an insulator about an edge of the case of a candle. The koronnyj category is a consequence of a high tension of an electromagnetic field of a candle and does not affect in any way work of system of ignition. Usually коронный the category becomes visible only in the dark. As a result of existence коронного the category on an insulator about the candle case there can be the characteristic pure ring site sometimes wrongly accepted for a consequence of break of gases between an insulator and the case of a candle.

The mechanical lock of ignition is located on the right side of a steering column under a steering wheel. The electric contact part of the lock of ignition is executed separately from the mechanical cylinder запирающе го devices. Electric коммутацион ная the part and the lock mechanism are connected with each other and work synchronously.