What do you need to know about Ford variable venturi carburettor?
No special tools are required. The Ford Variable Venturi carburettor is fitted to many small Fords. It looks like an ordinary fixed-jet carburettor , and has some features typical of that type, such as an accelerator pump . However, its main mechanism is of the constant-depression type – like an SU, but tilted through 90 degrees.
Which is the idle jet on a carburetor?
The idle jet controls mixture with the throttle all the way closed. The primary jets and secondary jets in combination control the mixture at open throttle. A [carburetor jet] (https://itstillruns.com/carburetor-jet-5047776.html) isn’t as interesting as it sounds. It’s just a nozzle. Unlike most garden hose nozzles, jets are not adjustable.
Where do you put the vacuum in a carburetor?
Remove the rubber vacuum hose from the base of the carburetor and attach a vacuum gauge to the vacuum port at the base. Start with the idle fuel mixture screw on the left side of the carburetor, looking at it from the front of the vehicle and turn the screw a quarter turn.
How do you check a carburettor on a VV?
Carefully peel the edges of the diaphragm free of the main carburettor body. Free the centre of the diaphragm by pushing off the circlip holding it, taking care not to nick the diaphragm. Check the diaphragm, as you did that of the accelerator pump , and refit it carefully.
What kind of carburetor does a Varajet 2 have?
Never did that until I decided to screw with the one idle adjustment screw by the linkages on the back of the carb because it #2. Rochester Varajet II The two-stage carburetor, built almost entirely of aluminum , first came out on The Varajet models 2SE and E2SE, Figs.
When to replace a GM Varajet carburettor needle?
Signs of wear will show as minute groves in the jet or on the needle or bright spots on the side of the needle. Replace them if there is the slightest sign of wear, also if the needle is bent. Lift out the jet with; check it and the needle for wear. When replacing the needle, guide it carefully into the jet.
What do you need to know about GM Varajet?
You need no special tools, but take care to use screwdrivers which fit the screw heads correctly. The Varajet has two chokes or barrels. The first, which works alone at low engine speeds, has a fixed- jet system. The second, which comes in at higher speeds, has a variable jet.
Where is the idle speed adjustment on a Varajet?
The idle speed adjustment on a Varajet is the larger screw in the side of the carby on I’ll have a dig around and see what i can come up with. Never did that until I decided to screw with the one idle adjustment screw by the linkages on the back of the carb because it #2.