Lexus RX 300
+ Cars Lexus RX-300
+ Controls and operation receptions
+ Options and car routine maintenance
- The engine
The general information and preparatory operations
Check компрессионного pressure
Check of the engine by means of the vacuum gauge
Reduction of the piston of the first cylinder in position of the top dead point (ВМТ)
Check of a corner of an advancing of ignition
Removal, check and installation of a belt of drive ГРМ it натяжителя, a pulley and a cogwheel of a cranked shaft, cogwheels of camshafts and intermediate rollers
Removal, dismantling, check, assemblage and installation of a head of cylinders and its components
Removal and engine installation, check of support
The block of cylinders
Check Д/В of pressure of impellent oil
Removal, dismantling, check, assemblage and installation of the oil pump and the pallet картера
+ Systems of cooling of the engine, heating, ventilation and air conditioning
+ The power supply system and release of the fulfilled gases
+ Systems of an electric equipment of the engine
+ Automatic transmission and interaxal differential
+ Transmissionnaja line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Basic schemes of electric connections
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Removal, dismantling, check, assemblage and installation of a head of cylinders and its components Removal
Installation components воздухораспределителя and the inlet pipeline
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- Remove assemblage воздухораспределителя. For this purpose execute following operations:
- Disconnect following cables and electroconducting sockets:
- Cable of a drive throttle заслонки;
- Socket and gauge TPS clamps;
- Valve IAC socket;
- Sockets VSV of №1 and №2 systems ACIS;
- Socket VSV of system EVAP.
- Turn out three bolts and disconnect pressure head tube ГУР from воздухораспределителя, its rack and an elevating hook №1 engines.
- Separate following connections:
- Hose PCV from valve PCV on a head of the right number of cylinders (1);
- Cable of weight and the tyre of grounding from the valve of management of giving of air of system ACIS (2);
- Cable of weight from воздухораспределителя (3);
- Vacuum hose of the amplifier of brakes from воздухораспределителя (4);
- Two перепускных a hose of system of cooling from the case of a throttle (5);
- Hose подмешивания air from the case of a throttle (6);
- Hose of a purge from a tube on assemblage of the valve of system EVAP (7);
- Two vacuum hoses from the vacuum chamber of system ACIS (8);
- Collar of electroconducting of the engine from assemblage of the valve of system EVAP (9).
The connections which are subject to dismantling
- Remove an elevating hook №1 engines and a rack воздухораспределителя.
- Turn out two bolts, two nuts and remove воздухораспределитель together with a lining.
- Separate following connections:
- Sockets of injectors (№25);
- Submitting fuel hose from a tube (№18) (observe safety rules of work with fuel system);
- Hose of a heater from the inlet pipeline (№22).
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Turn out 9 bolts and two nuts in sequence, return shown, remove two washers. Remove the inlet pipeline, fuel distributive highways and assemblage of injectors.
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- Disconnect from a water waste branch pipe (29) sockets (8 and 20) and the top hose of a radiator (23) then turn out two bolts and two nuts, remove two washers, disconnect перепускной a hose (15) and remove a water waste branch pipe with two linings (11).
- Remove ignition and spark plug coils (the Section Check and replacement of spark plugs see).
- Remove a belt of drive ГРМ, cogwheels of camshafts and the top (№2) intermediate roller (see Has undressed Removal, check and installation of a belt of drive ГРМ him натяжителя, a pulley and a cogwheel of a cranked shaft, cogwheels of camshafts and intermediate rollers).
- Liberate burn down electroconductings of the engine from three clips on a cover №3 belts of drive ГРМ (№10), turn out 6 bolts of fastening of a cover and remove it.
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Components of installation of final collectors, gauges and electroconducting
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- Remove gauges CMP (9) and valves of management of greasing ГРМ (5).
- Give fixture and disconnect protection of electroconducting of the engine against the back, right and left parties of a head of cylinders.
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Fixture of a plait of electroconducting on the back party of a head of cylinders |
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Fixture of a plait of electroconducting on a head of the right number of cylinders |
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Fixture of a plait of electroconducting on a head of the left number of cylinders |
- Turn out two bolts and remove a back plate (№6) left heads of cylinders.
- Turn out a bolt and disconnect submitting tube (№13) from a reception branch pipe. Remove a sealing ring.
- Turn out three bolts and remove an arm of pump GUR (№8).
- Disconnect from a final collector of the right number of cylinders electroconducting of the gauge of quality of an air-fuel mix (the gauge of 1 number 1), remove a rack of a collector (№3) and, having given 6 nuts, remove a collector (№2).
- Remove каталитический the converter (№20 on an illustration the Components which are subject to removal for access to drive ГРМ).
- Disconnect from a final collector of the left number of cylinders electroconducting of the gauge of quality of an air-fuel mix (the gauge of 1 number 2), remove a rack of a collector (№15) and, having given 6 nuts, remove a collector (№16).
- Turn out a bolt of fastening directing щупа level of impellent oil (№14) and extend directing together with щупом and a sealing ring from the pallet картера.
- Turn out on 9 bolts of fastening of covers (1 and 13) heads of cylinders (25 and 26) and remove covers together with linings.
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Components of assemblage of a head of cylinders
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- Remove an inlet camshaft of the right number of cylinders. For this purpose:
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Combine adjusting labels (on two points; on shaft of the left number of cylinders – on one point) on gear wheels of inlet and final shaft, turning their adjustable spanner for лыску on final to a shaft.
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- Fasten among themselves the main and additional gear wheels of a final camshaft bolt М6-1.0X16 (20), thereby having fixed a gear wheel spring.
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In stages loosen the also turn out 10 bolts of fastening of covers of bearings of a camshaft.
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- Remove 5 covers of bearings and a camshaft.
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In stages loosen the also turn out 10 bolts of fastening of covers of bearings of a final camshaft of the right number of cylinders. Remove 5 covers of bearings and a camshaft.
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- Remove inlet, and then final camshafts of the left number of cylinders, operating similarly to removal of shaft of the right number of cylinders.
- The removed shaft and covers of their bearings arrange according to their adjusting position that at assemblage to establish them on former places.
- Consistently fix in a vice final camshafts for лыски under a wrench and disassemble shaft. For this purpose:
- By means of the special adaptation turn an additional gear wheel counter-clockwise and turn out a bolt fastening it with the main gear wheel.
- Compress nippers a cutting lock ring (№16) and remove it.
- Remove a wavy washer (14), an additional gear wheel (17) and a spring of a gear wheel (15).
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Do not mix the removed parts of final camshafts of the left and right number of cylinders. |
- Remove heads of cylinders. For this purpose:
- Turn out прутковым Allen a key on 8 mm a corresponding extreme bolt of fastening of each head of cylinders.
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In regular intervals, in stages loosen the also turn out 8 bolts of fastening of each head of cylinders strictly in sequence. Remove 16 bolts with washers.
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Remove heads of cylinders from hairpins of the block of cylinders and lay them on wooden бруски not to damage interfaced surfaces. If to remove heads of cylinders it is not possible manually, accurately hook their screw-driver, trying not to damage interfaced surfaces of heads and the block of cylinders.
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Dismantling
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