Q: Gasket between Qjet and intake
While spraying Gummout carb cleaner down the primaries on my Quadrajet carb on my 1968 400, I noticed that the Gummout was leaking out from between the Qjet and the intake. Not a good sign. I assume that is my problem (or I created the problem with too much Gummout carb cleaner).
Here are my questions: Should I use gasket sealer on the new gasket or should it go on without and sealer? Do I need a torque wrench for the bolts?
A: This may or may not be a fix, but ………when I got mine OHC running it was missing out a little. Then it was suggested that there was a thin metal gasket that should go between the bottom of the carb and the intake. I went to a speed shop and got a thin gasket ( it was just a thin piece of sheet metal with the 4 holes in it ) and voila, I have not had any problems since. Apparently it always had one on it and when I took the car apart I either lost it or chunked it. I think it cost about $5 and was in stock hanging on the wall at a performance shop. May be worth a shot.
A: This same gasket is needed on 1967 Qjet intakes as well. There’s a heat passage along the intake in front of where the carb sits. I know, I learned this one the hard way!
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Content last modified: January 15, 2014 at 1:17 pm