idle air bleed screw

idle air bleed screw
A screw found on some carburetors which allows air to enter the carburetor when the throttle is closed, so that the vehicle can idle. It also prevents the formation of deposits in the throttle area. The adjustment of this screw is part of a basic tune-up.
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Dictionary of automotive terms. 2015.

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  • air bleed screw — See idle air bleed screw …   Dictionary of automotive terms

  • bleed screw — A screw used to release the air from a system like the brake system. Also see idle air bleed screw …   Dictionary of automotive terms

  • air bleed — See compensating jet idle air bleed screw …   Dictionary of automotive terms

  • adjustable off-idle air bleed — Some emissions era Rochester carburetors have a separate air passage to bleed air past an adjustment screw into the idle system. this screw is preset by the factory to produce precise off idle air/fuel mixture ratios to meet emission control… …   Dictionary of automotive terms

  • screw — [1] A spiral path along a cylinder. [2] A fastening device. A screw is like an inclined plane wrapped up. It can take a rotating force and change it into a much larger straight line force. See adjusting screw aiming screw air bleed screw air… …   Dictionary of automotive terms

  • bleed — [1] To remove air bubbles from hydraulic lines and components of a system. Also see air bleed air bleed screw idle air bleed screw compensating jet . [2] To reduce the air pressure in tires that have been run, warmed up, and thus increased from… …   Dictionary of automotive terms

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  • idle channel restriction — Used on carbureted vehicle. Does the same thing as the idle feed restriction, but is located in the idle passage just below the idle air bleed instead of the bottom of the idle tube. In the primary idle channel, the amount of fuel emitted by the… …   Dictionary of automotive terms

  • bleeder screw — A hollow screw used to open a bleeder valve to allow fluid and air bubbles from a system like the brake system during a bleeding process. Also see idle air bleed screw …   Dictionary of automotive terms

  • Centrifugal compressor — Centrifugal compressors, sometimes termed radial compressors, are a sub class of dynamic axisymmetric work absorbing turbomachinery.[1] Centrifugal impeller with a highly polished surface likely to improve performance …   Wikipedia

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