3.2.3.3.10. Replacement of cooling liquid
Liquid discharge
| PERFORMANCE ORDER |
| 1. It is necessary to merge liquid on the cold engine. |
| 2. Unscrew a stopper of a broad tank, having turned it counterclockwise. |
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3. Substitute a vessel under the lower hose of a radiator, disconnect a hose (it is specified by an arrow) and merge liquid. |
| 4. It is not provided in the block of cylinders of a separate stopper therefore liquid completely is not removed. |
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Before gas station the system should be washed out.
Washing of the cooling system
| PERFORMANCE ORDER |
| 1. Remove the thermostat. Put into place the case of the thermostat and put on a hose. |
| 2. Insert a flushing hose into the lower disconnected hose of a radiator and fill system with clear water until water begins to follow from a radiator mouth. Continue to wash out within 10–15 min., clear water will not begin to follow yet. |
| 3. If the system is strongly polluted, then wash out it in the opposite direction, having inserted a flushing hose into the lower branch pipe of a radiator. If there are doubts in purity of a radiator, then it should be removed and washed out, at the same time stirring up. Then in addition wash out system a water stream before installation of the thermostat and accession of hoses. |
| 4. In extreme cases use of special additives for cleaning of considerable deposits of a scum is allowed, at the same time be guided by the instruction of the manufacturer. |
| 5. If liquid changed regularly, then need of washing, as a rule, disappears. |
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Filling
| PERFORMANCE ORDER |
| 1. Check a condition of all hoses and connections. Attach the lower hose. |
| 2. Fill in liquid through a broad tank. At first the concentrated antifreeze in the necessary quantity, and then – water is filled in. |
| 3. When filling periodically squeeze big hoses not to allow formation of air traffic jams. |
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4. On the most part of cars the small ventilating hoses connected to a broad tank are provided. If these hoses are absent, then unscrew the ventilating union (it is specified by an arrow) on a bend of the thermostat and when through it liquid begins to follow, wrap the union. |
| 5. After filling, warm up the engine, stop and on the cold engine check liquid level again. If necessary add. |
| 6. Check reliability of fastenings of hoses after gas station and later several hundreds of kilometers of a run. |
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ANTIFREEZE
Antifreeze represents mix of the distilled water with an ethylene glycol concentrate. Antifreeze provides protection of the cooling system against corrosion and increases a boiling point of cooling liquid. The amount of ethylene glycol in antifreeze depends on weather service conditions of the car and makes from 40 to 70%.
