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Quadrajet Electric Choke Adjustment
Quadrajet Electric Choke Adjustment. The primary choke pull off pulls the choke open about 1/8 of an inch at the top as soon as you start it. This problem is caused by bad electric choke, or improperly adjusted choke.

If the engine is dead cold, it may already be bottomed out. The rochester quadrajet uses an automatic choke system that is actually very good, if properly set up and adjusted. In this video ill show you how to set the mechanical choke on a rochester quadra jet 4 barrel carb, this also applies to the electronic chokes on all rochest.
At Any Rate, The Coil Is Adjusted So The Choke Opens At The.
The choke plate on top of the carburetor should open right up as the choke coil (the electric plug in part) warms up. The choke coil should be adjusted somewhere near the index position. In this video ill show you how to set the mechanical choke on a rochester quadra jet 4 barrel carb, this also applies to the electronic chokes on all rochest.
Each Stage Will Be Explained In More Detail Next.
Leave it attached to the choke coil box on the manifold. The cold engine off adjustment should have the choke blade just closed. Turning the screw down (clockwise) creates a leaner part throttle mixture.
Just Turning The Choke Thermostat To Bring It To The Closed Position.
This video shows how to set the automatic choke on a rochester (quadrojet) carburetor with a 350 (small block) chevy engine, Push the choke rod all the way down into the choke coil until it hits the stop. The rochester quadrajet uses an automatic choke system that is actually very good, if properly set up and adjusted.
You Can Also Use A Hair Dryer To Blow Hot Air Across The Bimetallic Strip And Watch It Operate.
Adjusting this type of thermostat. I've got the casing all put back together and cleaned etc. The electronic fuel control system, as well as egr, don't come into play until the thing's warmed up.
Check The Electric Choke And Its Adjustment, Also Check The Choke Control On The Right Rear Of The Intake, And The Charge Temp Sensor Adjacent To The Choke Control.
The adjustment screw is near the bottom of the carb below the level of the choke housing, not on top near one of the choke pulloffs (if you have two pulloffs). Twist the thermostat until the choke valve closes. Quadrajet service manual and part numbers.
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