Rochester Quadrajet

If you are passionate about cars, you probably know about constant choke carburetors, constant vacuum carburetors, and multiple venturi carburetors....

If you are passionate about cars, you probably know about constant choke carburetors, constant vacuum carburetors, and multiple venturi carburetors....

Dis Assembly of the Accelerator Pump Lever Remove the accelerator pump arm by using a small drift punch and beat...

E4MC & E4ME Adjustments Float Level Adjustment Pump Rod Adjustment Fast Idle Setting Choke Rod Adjustment Choke Coil Lever Adjustment...

This part is used to limit the amount of gas in the carburetor for evaporation emissions. These were used only...

Quadrajet 4 Barrel Primary & Secondary Pull-Off Type This illustration is for a 1981 Chevy truck application. This particular carburetor...

Float Circuit Illustration The pull clip is used to help pull the needle out of the seat thus preventing sticking....

Hesitation off of idle can be caused by electrical, accelerator pump and a little known idle passage way. This video...

MAKE YEAR MODEL CARB NUM PRIMARY JET SECONDARY JET METERING ROD SIZE BUICK 1966-67 400″ 6.6L, 425″ 7.0L, 430″ 7.0L...

The main metering system (Figure 9) supplies fuel to the engine from off-idle to wide-open throttle. The primary bores (two...

Replacing a Rochester Quadrajet needle & seat – diaphragm type. Our kit includes the small parts you see here: Part...

Below you will find our Quadrajet rebuild video series. The videos are in 3 parts and while this is a...

A- Secondary lockout. Locks the secondary valve C- closed when the engine is cold. Opening the secondary when cold can...

Rough Idle This can be caused by several things, but there is one item often missed by the rebuilder and...

Beginning in 1972 Quadrajets used a bowl vent connected to the EGR canister.