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post #1 of (permalink) Old 05-09-2001, 05:52 PM Thread Starter
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Carb power valve question?

On a Rochester 2 jet what is it that a power valve does? Yes, I did screw up the on on my Rochester swap and now also need to know where I can get a new one? I tried a few parts stores(Checker, Autozone) and they didn't have it. Other than a dealer where can I get a power valve for my Rochester? Thanks for any help.

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post #2 of (permalink) Old 05-09-2001, 06:38 PM
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Re: Carb power valve question?

Try napa. What exactly did you screw up? On the 2G there are 2 parts to the power valve, the piston and the valve it contacts down by the jets. The valve part by the jets came in a rebuild kit I bought from Kanter auto.
The power piston consists of a metal piston, a retainer ring, and a spring. I don't think anything but the spring is available anymore. This part attatches to the air horn. The power valve system is responsible for providing a richer mixture during the low vacuum situations like acceleration. It bypasses the jets. It helps fuel economy and prevents knocking.
You may have to get an extra junker carb and scavenge the part. Good luck.
Josiah Bartlett

Hillsboro, OR
1955 Willys CJ5 Buick 225 V6 160HP 270ft-lbs, T90 trans, Warn OD, PTO winch, Spicer 18 T Case, RS9000's, Dana 25F/ 44R,
5.38:1 gears, 11" brakes, Bestop Supertop, Hurculiner
post #3 of (permalink) Old 05-09-2001, 06:52 PM Thread Starter
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Re: Carb power valve question?

I screwed up the part down by the jets. I didn't think to ask for a rebuild kit, i just asked if they carried a powervalve. I'll have to go back and try this route. Thanks for your help!

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