Join Date: Sep 1999
Location: Vancouver, Washingon
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Re: quadrajet differences?
There are 4 basic types of quadrajets. Usually the choke type determines what type the quardajet is. Older quadrajets use a bi-metal spring for the choke, usually 68 - 74 quadrajets have this type choke. Next on the list of choke types are the heat raiser tube type chokes, which have a tube going to the intake manifold to the quadrajet choke housing. Usually the heat raiser tube type chokes are from 74 - 79. Next on the list of choke types are the electric chokes, which have an electric wire going to the choke element. Usually the 80 - 86 quardajets have electric choke.
Now for the real fun, there are two types of electronic quadrajets. One type used a computer to control a mixture control solenoid, often called the feedback system. The other type of electronic quadrajet never had a computer, but used a temperature switch in the intake manifold for a choke enrichment solenoid. Usually the choke enrichment solenoid type quadrajet was used on pickups with the Electronic Spark Control (ESC) system.
Heck yes, there are different types of quadrajets! [img]images/icons/smile.gif[/img]