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Author Topic: Mystery part in rebuild kit  (Read 322 times)

Offline guero_gordo

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Mystery part in rebuild kit
« on: January 05, 2026, 07:23:28 PM »
I'd like to identify a black rubber cap from my rebuild kit.
It came in a little baggy with the filter gasket+spring, AP roll pin, and some crimp-on c-clips
My attachment won't display
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Offline guero_gordo

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Re: Mystery part in rebuild kit
« Reply #1 on: January 05, 2026, 08:04:36 PM »
....I guess it did display, just not in Preview ;-)
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Online Kenth

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Re: Mystery part in rebuild kit
« Reply #2 on: January 06, 2026, 04:44:14 AM »
Your picture shows the idle vent seal:
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Offline guero_gordo

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Re: Mystery part in rebuild kit
« Reply #3 on: January 06, 2026, 10:55:15 AM »
Thank you. I bet the original is really crusty because I never knew it existed ;-)
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Offline guero_gordo

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Re: Mystery part in rebuild kit
« Reply #4 on: January 07, 2026, 08:13:17 PM »
Turns out I'm not completely unobservant, the vent holes are cast in, no seal
It's a CA emissions model 7040511 with a charcoal canister, perhaps that's why
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Online Kenth

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Re: Mystery part in rebuild kit
« Reply #5 on: January 08, 2026, 02:21:48 AM »
No 1970 Chevy Truck Quadrajets uses the idle vent kit.
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