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Guest Anonymous

help with part ID

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Guest Anonymous

I'm running a weber 32/36, and there is a part that I am not really sure of what it is. The feed fuel line runs into it, and the return leaves it. Also, from the top, a line runs to the carb itself. It's about an inch an change in diameter, round, and a steel line runs from the underside into the intake manifold. Is it vacuum operated? Control the fuel flow?

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Guest Anonymous

It's a vacuum operated valve that reduces the flow of fuel to the carb under high-vacuum/closed throttle conditions. This was part of the emissions control strategy to reduce over-rich mixture when decelerating with your foot off the gas, car in gear. You can do without it, though at least an inline pressure regulator is a good idea--keep the Weber input pressure at about 3.5psi to avoid forcing the needle valve off of its seat.

Mike

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Guest Anonymous

If you remove this vacuum capsule and disconnect it from the steel return line, be sure and plug the steel return line at the gas tank, otherwise it will tend to siphon gas out of a full tank. Not a good way to lose gasoline, under the car!

Cheers

Mike

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