How to change a fuel filter on a 1980 chevy citation?

LOL too funny. Obviously, Eric and GearHeadDan are too young to have actually ever worked on a 1980 Citation, or too old and senile to remember how they were equipped. None were fuel-injected, in which case the fuel filter usually would be located under the car. And a QuadraJet would hardly be found on either the 4-cyl or V6 available on these cars. In either case, your vehicle would come, from the factory at least, with a 2 barrel carb known as the VaraJet. This is a 2 barrel with a primary (smaller) venturi and a secondary (larger) venturi, as opposed to the DualJet, which is also a 2 barrel, but with 2 primaries. That one's basically the front half of a Q-Jet. The VaraJet is more like one side of a Q-Jet, although it bears no physical resemblance like the DualJet does.



The VaraJet does have the same basic fuel filter setup as the others, though it's really a totally unrelated design in most other respects. It's in a cylindrical housing, attached to the primary side of the carb. Like the others, it also has a 1 inch hex built into the end towards the carb. Given the tightness of placement (on the 2.8L V6 especially), a special wrench was made for holding this hex, to keep the housing from coming loose from the carb, instead of the fuel line coming loose from it. Not strictly necessary, but much easier to use than a Crescent or standard open-end wrench. Very thin, with a specially offset head, about 45 degrees as opposed to the usual 15.



While holding the 1 inch hex, loosen and remove the fuel line. After that, remove the cylindrical housing. Inside, you will find the paper fuel filter, along with a spring. When you put it back together, make sure you put the filter in first, with the open end facing the fuel line, then the spring. There is also a gasket around the big end with the 1 inch hex which you will want to check, to make sure it doesn't leak after you put it back together. Tighten the cylinder first, not too tight, as it's going into an aluminum carb body, then hand start the fuel line to prevent cross threading, then tighten while holding the 1 inch end of the cylinder, to keep that from over-tightening.



Below are exploded views of the 2SE and E2SE (VaraJet) carbs in question, followed by the 2M (DualJet, aka 210) and 4M (QuadraJet) series.

http://www.carburetorfactory.com/expvw24

http://www.carburetorfactory.com/expvw25

http://www.carburetorfactory.com/expvw27



Here's the wrench I have. Looks like the price has gone up quite a bit since I bought mine 25 years ago.

http://www.mactools.com/product/tabid/12



Sorry Dan. I didn't mean to give you such a hard time. Given the similarities in the various GM carbs, your answer was actually much better than Eric's.



Looks like I goofed too. According to the diagram, the fuel filter is on the fuel bowl side, not the primary end of the carb. The more I think about it, I believe they were mounted kind of sideways on the V6, which is mostly what I ran across.How to change a fuel filter on a 1980 chevy citation?They are located under the car.

and just unscrew like all the rest of the same time peroid.How to change a fuel filter on a 1980 chevy citation?Those old citations had a quadrajet carburetor on them. Look where the fuel line goes into the carb. See the large hexagonal cap there?



First remove the fuel line (1/2%26quot; line wrench). You may have to hold back on the inlet cap to get the line loose. Then remove the cap, and you'll see the tiny filter in there. The cap is large so your best bet for that is an adjustable wrench.

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