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2-6-5-proverka-germetichnosti-dvigatelya-soderzhanie-so-v-sisteme-okhlazhdeniya.html
2.6.5. Check of tightness of the engine (the contents WITH in cooling system)
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NOTE
Before procedure of check warm up the engine to working temperature (oil temperature – 80 °C).
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ATTENTION
Remember that the system of cooling is under pressure.
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Open a cowl.
Uncover a broad tank of cooling liquid.
Slowly turning off a cover, dump pressure in system.
Check level of cooling liquid. Add cooling liquid to COLD label in case of need.
Establish a tester on a broad tank of cooling liquid.
Start the engine.
Check the engine on existence of leaks.
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NOTE
The transparent cylinder of a tester contains dark blue jet liquid which becomes yellow in the presence of air with the maintenance of the slightest traces of carbon monoxide. At retraction of fresh air in test liquid it is restored and again gains dark blue color.
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Air is selected from a broad tank of cooling liquid by a rubber pear.
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ATTENTION
Cooling liquid should not get to a tester.
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If dark blue liquid in the main chamber of a tester became yellow, laying of a head of the block of cylinders or a head of the block of cylinders are not tight.
Tester check
Liquid can be tested by a fence of gases from an exhaust pipe. In this case test liquid should become yellow.
Disconnect a tester and carefully dump pressure.
Establish a cover of a broad tank of cooling liquid.
Close a cowl.
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