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Wheel change
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Video Multi-cylinder Engine
Video Inl. 2-cyl. 4-stroke
Video Inl. 2-cyl. 2-stroke
Video Opp. 2-cylinder
Video 2-cyl. V-engine
Video Inl. 3-cylinder
Video Inl. 4-cylinder
Video Opp. 4-cyl. 1
Video Opp. 4-cyl. 2
Video Inl. 5-cylinder
Video 5-cyl. V-Engine
Video Inl. 6-cylinder
Video 6-cyl. V-inline-engine
Video 6-cyl. V-engine
Video Opp. 6-cylinder
Video 8-cyl. Firing Order
Video 8-cyl. V-engine
Video 8-cyl.-V-Classic
Video V-8 Cylinder Block
Video V8 Turbo Engine
Video W-8 Cylinder Block
Video V-10 Cylinder Block
Video V-10 Diesel Engine
Video V-10 Porsche Engine
Video V-12 Engine
Video V-12 Cylinder Block
Video V-12 Ferrari Engine
Video W-12 Cylinder Block
Video W-12 Engine
Video Radial Engine
Video Rotary Radial Engine

Video Multi-cylinder 1
Video Multi-cylinder 2

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Transition (single-barrel
    downdraft carburetor)


During the transition from idling to partial load, a steady increase of the fuel amount in proportion to the increasing air volume should be achieved. Also a carburettor engine should accelerate smoothly from the idling speed.


The main jet system does not yet function when only slightly above idling RPMs, because the flow speed of the air is not yet sufficient. For this reason, with the increasing opening of the throttle valve, three drillings (or an oblong slit) become free. They are connected with the idling channel above the idling-mixture adjustment screw. Fuel from the idling system is also sucked in. 01/11               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

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