LEXUS RX 300

1998-2003 of release

Repair and car operation



Лексус RX 300
+ Cars Lexus RX-300
+ Controls and operation receptions
+ Options and car routine maintenance
+ The engine
- Systems of cooling of the engine, heating, ventilation and air conditioning
   - System of cooling of the engine
      The general information and safety measures
      Removal, check and installation of the water pump
      Removal, check and thermostat installation
      Check of components of system of cooling
      Removal and installation of a radiator and fans
   + Systems of 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
+ Трансмиссионная a line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Basic schemes of electric connections


Removal, check and thermostat installation

Thermostat removal can adversely affect engine cooling, therefore do not remove the thermostat if in it there is no necessity.

Components of installation of the thermostat

1 — Socket Д/В №2 ECT
2 — the Reception branch pipe
3 — the Lining
4 — the Thermostat

5 — Protection of electroconducting of the engine
6 — the Sealing ring
7 — Submitting tube ОЖ


 PERFORMANCE ORDER

  1. Empty cooling system (the Section Replacement of a cooling liquid (ОЖ see)).
  2. Remove air cleaner assemblage (see Has undressed Removal and air cleaner installation).
  3. Disconnect protection of electroconducting of the engine against a reception branch pipe and against the right number of cylinders.
  4. Turn out a bolt and disconnect submitting tube ОЖ from a reception branch pipe and from the left number of cylinders. Remove a sealing ring of a tube.
  5. Give three nuts and remove a reception branch pipe and the thermostat. Remove a lining from the thermostat.
  6. Lower the thermostat in heated up water and check up temperature of opening of its valve – it should make 80 84 hailstones.

The temperature of opening of the thermostat is beaten out on its case.


  1. Continuing to heat up water, check up size of displacement of the valve from its initial position – at temperature 95 hailstones. The valve should be displaced not less, than on 10 mm.
  1. Make sure of completeness of closing of the valve of the thermostat at temperature 40 hailstones.
  2. If though one of checks is not passed, replace the thermostat
  1. Establish a new lining of the thermostat and level its valve with the top hairpin with a margin error no more than 15 hailstones.
  1. Establish acting in film components in an order, the return to an order of their dismantle. Use a new sealing ring of submitting tube ОЖ, tighten fixture with demanded efforts.