q jet question
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Instructor
Joined: Jul 2005
Posts: 197
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q jet question
The other day I found an old quadrajet at the dump. A little dirty but looks reasonably good otherwise. would this be worth keeping (parts etc) or am I just wasting my time messing with it. It appears to be a later one with the choke coil on the side of the carb. It also has what appears to be a blue plug on the top rear of the carb. any input is appreciated thanks.
Tech Contributor
Joined: Aug 1999
Posts: 14,365
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From: At my Bar drinking and wrenching in Lafayette Colorado
1982 carb. Most Q-Jets used on passenger cars in '82 were computer controlled and had an electrical connector location on the top of the carb. These cannot be used on cars without an ECM. If it does not have the electrical connector provision, it's a truck carb with the fat truck metering rods - not of much interest for a performance application.
Safety Car
Joined: Oct 1999
Posts: 4,101
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From: NorCal
The late feedback Quadrajets (81-86) with the electric choke were only used a few years. The rarest one is the electric choke non-feedback model (77-78). I try and scrounge as many of those as I can to use on MOPAR engines in place of Carter Thermoquads that are too worn to repair. You have a 1982 Feedback model from a 305 equipped car.
Hans
Hans
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Tech Contributor
Joined: Aug 1999
Posts: 14,365
Likes: 6,345
From: At my Bar drinking and wrenching in Lafayette Colorado
Hans -
The electric chokes non-ECM carbs were only used on Vette in 1980. 1975 through 1979 used the hot air system, and these carbs are plentiful. You can easily convert the hot air carbs to electric by removing the choke cover and installing the 1980 electric cover, or by using the Edelbrock Q-Jet electric cover. You just have to remove the cover gasket when you do this so the electric choke gets grounded.
The electric chokes non-ECM carbs were only used on Vette in 1980. 1975 through 1979 used the hot air system, and these carbs are plentiful. You can easily convert the hot air carbs to electric by removing the choke cover and installing the 1980 electric cover, or by using the Edelbrock Q-Jet electric cover. You just have to remove the cover gasket when you do this so the electric choke gets grounded.
