Lexus RX 300
+ Lexus RX-300 cars
+ Administrations and methods of operation
+ Placing and regular maintenance of the car
- Motor
General information and preparatory operations
Check of pressure of compression
Check of the motor through the vacuum measure
Reduction of the piston of the first cylinder in the provision of the superior dead point (TDP)
Check of a corner of an advancement of ignition
Removal, check and installation of a belt of GRM drive of his natyazhitel, pulley and cog-wheel of an end of inclination, cog-wheels of axles and intermediary rolls
Removal, desmontagem, checks, meeting and installation of a head of cylinders and his component
Removal and installation of the motor, check of support
Cylinder block
Check of D/V of pressure of oil of reason
Removal, desmontagem, checks, meeting and installation of the bomb of oil and trundle bed of a case
+ Cooling systems of the motor, heating, ventilation and air conditioning
+ A system of provision of power and production of the carried out gases
+ Systems of electric equipment of the motor
+ Automatic exchange and differential interaxal
+ Transmission line
+ Brakes system
+ Support of the triangular form of interruption and direction
+ Body
+ Electric side equipment
+ Schematic diagrams of electric connections
|
Check of pressure of compression
|
|
The implementation of the proceeding of the check of the pressure of compression will need the help of the spectator. |
The measurement of the pressure of compression allows to do the general idea on the current state of such component internal ones of the motor like the leaders' placing of cylinders, elements of the mechanism valvate, pistons and rings of piston. The analysis of results of the check allows to define if the motor needs repairs of recuperation of capital, or is enough to substitute the alone placing of fighter of a head of cylinders. The measurement is executed through a kompressometr.
|
|
- Heat the motor up to the temperature of normal work (on the 80th hail). also they deaden it.
- One secures of the perfection of a load of the battery recarregável that in a motor provorachivaniye an author was possible to receive not less than 250 revolutions per minute.
- Withdraw a carenagem of windshield (to see the Chief Kuzov).
- Result when they were taken of spark (seen the Check of Section e a substitution of captures of spark).
|
|
-
Prepare компрессометр and screw his mouth in an opening of candle of one of cylinders.
|
- Completely open a butterfly valve and, when an author is turning the motor, they think indications of a kompressometr. Write the result of the measurement.
|
|
The time of the realization of measurement will be how it is possible well. |
- Repeat proceedings for the motor cylinders remained.
- Compare when they resulted from the measurement by demands of Specifications of the Chief Dvigatel.
- The compression grows in the useful motor very quickly. The low value shown after the first cycle, what increases with the subsequent cycles indicates the use of rings of piston. The low value after the first cycle that does not increase after the next thing indicates the existence of holes he was seeing valves or crushed placing of a head of the cylinder (also the slit in a head can be the cause). It can lead the existence of a deposit in plates to lessen in a valves compression.
- The results received in the moment of the measurement of a compression will be approximately identic to all the cylinders. If the pressure is in some cylinder at the level of the admissible minimum and even down, then for the clarification of the reason downpour in the cylinder for a candle that opens in a teaspoon of the reason the measurement of oil and repeated of a compression.
- If the oil addition temporarily improved a compression, more probably, the use of the piston, rings or the cylinder is the reason of his reduction. If the increase in a compression did not happen, then it is possible to suppose that the reason – in the leak of valves or the crushed placing of a head of the block.
- The low compression in two next cylinders almost for right is a consequence of the exhaustion of the placing of a head. The availability of cooling the liquid in combustion cameras or in a case of the motor it will confirm this supposition.
- If the compression in one of cylinders will be approximately a 20 % lower, of what in others, besides turns of wasting time they are unstable, then the reason, possibly, the excessive use of a came of the axle.
- After carrying out control desconectam компрессометр and they install when it was withdrawn being component.
|
|
|
|
