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Toyota Land Cruiser 100/Amazon, Lexus LX 470since 1997 of releaseRepair and car operation |
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Toyota Land Cruiser, Amazon, LX470 Lexus + Identification numbers of the car + Governing bodies and receptions of safe operation of the car + Settings and routine maintenance of the car + Engine + Systems of cooling of the engine, salon and air conditioning heating + the Power supply system and production of the fulfilled gases - Engine electric equipment Specifications Engine start from the auxiliary power supply Removal and installation of the storage battery Check of a condition and replacement of wires of the battery Ignition system - the general information and precautionary measures (petrol models) Check of functioning of system of ignition Replacement of the coil of ignition Check and adjustment of installation of a corner of an advancing of ignition/injection of fuel of the petrol engine Replacement of the module of ignition Charge system - the general information and precautionary measures Check of a condition of system of a charge Removal and generator installation Check of a condition and replacement of components of the generator Start system - the general information and precautionary measures Check of serviceability of functioning of a starter and start chain Removal and starter installation Removal and installation of the traction relay + Control systems of the engine and decrease in toxicity of the fulfilled gases + gear shifting Box + Transmission line + Brake system + Suspension bracket and steering + Body + Onboard electric equipment |
Check and adjustment of installation of a corner of an advancing of ignition/injection of fuel of the petrol engine
General information The moment of ignition is measured in degrees of an angle of rotation of a cranked shaft of the engine and is important for operation of spark plugs at some point a compression step. It is ideal, if the spark from a spark plug sets fire to an air and fuel mix in the combustion chamber at the moment of passing by the VMT piston of a step of compression. In this case the air and fuel mix will burn down and extend. Extending gases will push the piston down in a working course, rotating, thus, a cranked shaft. For complete ignition of a working mix fractions of a second are required. Therefore for observance of normal working process of combustion (complete combustion of a mix) in the engine some advancing of ignition is necessary. The advancing is measured in degrees to VMT. If the advancing of the engine makes 7 degrees to VMT, it means that tension on a candle should arrive while the cranked shaft is in 7 ° to VMT of a step of compression of the first piston. However, it is fair only for a case when the engine works at single turns. If the cranked shaft rotates quicker, means, also pistons quicker move. Therefore for complete burning of a mix of a candle should set fire to it even earlier. To answer these conditions, ECU corrects the ignition moment according to increase in speed of rotation of the engine. Electronic control by the moment of ignition is known under the name ESA and is defined by the ECU program. Tracing speed of rotation of a cranked shaft, mass of soaked-up air, engine temperature, the provision of a butterfly valve and other factors, the ECU microprocessor operates the ignition moment on all power setting from cold start to a mode of full loadings. System simple, noncontrollable and reliable. Check |
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