Lexus:: RX 300:: Cooling systems of the engine, heating, ventilation and air conditioning

5. Cooling systems of the engine, heating, ventilation and air conditioning

Specifications

Engine cooling system

Temperature of opening of the thermostat, hail.	80 ÷ 84
Thermostat valve shift at a temperature of 95 a hail., mm	not less than 10
Temperature of full closing of the thermostat, hail.	40
Pressure of opening of the safety valve of a cover of a radiator, atm
Standard	0.9 ÷ 1.2
The minimum admissible	0.75
Pressure withheld by a radiator cover, atm	1.2
Temperature of turning on of fans of the cooling system, hail	98
Current at turning on of fans from the battery at a temperature of 20 a hail., And	8.5 ÷ 11.5

Systems of heating, ventilation and air conditioning

Pressure of coolant, atm
Contour of low pressure	1.5 ÷2.5
Contour of high pressure	13.6 ÷ 15.5
Amount of coolant, гр.	650 + 50
Tension of the K/V driving compressor belt	see Specifications to the Head Nastroyki and routine maintenance of the car
The volume of refrigerator oil in the evaporator, cm ³	40
Type of refrigerator oil	ND-OIL 8
Resistance of the sensor of blocking of the K/V compressor at a temperature of 20 a hail., Ohm.	65 ÷125
Side play of the K/V magnetic coupling, mm	0.5 + 0.15

Efforts of tightening of threaded connections, Nanometer

Fixture of the water pump	8
Nuts of fastening of a reception branch pipe	8
Bolt of fastening of the giving OZh tube to a head of cylinders	19.5
Bolts of fastening of the top support of a radiator	12.8
Bolts of fastening of assembly of fans to a radiator	5
Oil cooler fixture to a radiator	8.3
Fixture of the giving radiator tube to a radiator	14.7
Fixture of refrigerator lines
Everything, except connection of the soaking-up tube with a hose	10
Connection of the soaking-up tube with a hose	32
Bolts of fastening of tubes to the broad valve and the evaporator	4.1
Bolts of fastening of the K/V compressor	25
Fixture of an arm of an adjusting level of a belt of the drive of the generator and K/V compressor
Bolt A	18
Nut and bolt In	25
Drain traffic jams of the cooling system
Stopper on a side cover of the block of cylinders of models 2WD	7
Other traffic jams	13
Fixture of a press plate to the compressor	13.2
Assembly fixture э / motor and drafts of screen wipers	see the Body
Bolts of fastening of assembly of a safety cushion of the forward passenger	20