Engine idle screw and its locknut
1 - locknut; 2 – the screw of installation of idling of the engine
Idle adjustment screw in a turbocharged engine
1 - adjusting screw; 2 - locknut; 3 - setting the maximum engine speed; 4 - control valve
1. Warm up the engine to operating temperature.
2. Connect a special device for measuring engine speed.
3. Measure the idle speed and, if necessary, adjust the screw.
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