Question about 1966 Ford Mustang

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I have a 1971 mustang 429CJ with the original quadrajet (never been rebuilt) and I have to prime the car before starting when it sits for a while. Why is the gas being siphoned out of the bowl?

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Wow, it's been a long time since I worked on one of those carbs but if memory serves me correctly there is a soft plug(s) at the bottom of the fuel bowl area and over time I think these start to leak into the manifold area. The leak is probably slow so I wouldn't think there would be any major damage caused by this but with the cost of fuel who wants to waste any of it?
If you are comfortable with rebuilding this unit then I think you can reseal the soft plugs yourself, they are just soft lead. If not there are a couple of good rebuilders on the west coast that specialize in these carbs and can rebuild to like-new condition.

Hope this helps you out and enjoy that classic muscle car.

Posted on Apr 27, 2010

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