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Air bleed question

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Old 09-24-2007, 05:50 PM
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Car: 1984 z28 camaro / 2019 accord sport
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Air bleed question

Has anyone ever drilled and taped there air bleeds?

I would like to use standard 6 - 32 screw in air bleeds on my speed demon. could i drill out all the air bleeds with a #36 drill bit then tap it with a 6 - 32 plug tap and then finish with a 6 - 32 bottoming tap?
Old 09-24-2007, 06:11 PM
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Car: 82 Berlinetta/57 Bel Air
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Axle/Gears: 12B-3.73/9"-3.89
If I'm reading this right, you want to switch from the air bleeds BG used to 6-32 thread bleeds.
Old 09-24-2007, 06:37 PM
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Re: Air bleed question

i should have clarified i have a 750 speed demon they are not equipped with screw in air bleeds from the factory. The next stage up, the mighty demon, has screw in air bleeds.

correction standard air bleeds are 10 - 32 unf. Would i would need to drill with a #21 drill bit then fallow the same tapping procedure but with 10 - 32 unf taps

Last edited by z28z34man; 09-24-2007 at 07:02 PM.
Old 09-24-2007, 09:11 PM
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Originally Posted by z28z34man
i should have clarified i have a 750 speed demon they are not equipped with screw in air bleeds from the factory. The next stage up, the mighty demon, has screw in air bleeds.
They must have changed that since yours was made.
Old 09-25-2007, 09:07 AM
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Re: Air bleed question

i hope this dosen't ofend you and i am not trying to in any way but the speed demon never got scrue in air bleeds.

Speed Demon

Mighty Demon

look at the bottom of each page at the demon features

again i am not trying to be mean or a net bully or something
Old 09-25-2007, 09:53 AM
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http://www.barrygrant.com/fromBarryG...n%20Manual.pdf Page 9.

Anyway, you can drill, tap & screw to your heart's content. I didn't find the CHP mag article about it, but the concept applies to any carb type as long as there is sufficient meat to hold them. And, that shouldn't be a problem with the BG carbs.
Old 09-26-2007, 09:29 AM
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Re: Air bleed question

dose anyone know how far to drill down if i should bottom tap the hole and if there is a particular spot that you are have to start the tap at
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