Author Topic: Air bleed thread size  (Read 4141 times)

Offline Marx3

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Air bleed thread size
« on: July 26, 2015, 01:52:57 PM »
Which tap should I buy for tapping air bleeds to accept the screw in air bleeds ?

Offline Ethan1

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Re: Air bleed thread size
« Reply #1 on: July 26, 2015, 02:18:19 PM »
Which tap should I buy for tapping air bleeds to accept the screw in air bleeds ?

 What size are your air bleeds now? Size will be equal to tap size.
Ethan

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Offline Ethan1

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Re: Air bleed thread size
« Reply #2 on: July 26, 2015, 02:19:29 PM »
 But, probably no bigger than a #10 tap I would imagine.
« Last Edit: July 26, 2015, 02:23:53 PM by Ethan1 »
Ethan

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Offline Marx3

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Re: Air bleed thread size
« Reply #3 on: July 27, 2015, 01:53:38 AM »
My air bleeds are .118... That's why I need to install snaller ones. I found a bunch of press-ins and a bunch of screw-ins I had lying around.
I need to know what thread size those screw in air bleeds are?

Offline Frank400

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Re: Air bleed thread size
« Reply #4 on: July 27, 2015, 03:34:00 AM »
I've personally reduced .120" air bleeds by tapping them 10-32, then installing new custom air bleeds made out of 10-32 brass set screws.  I've also reduced .120" air bleeds by inserting the factory idle down channel restrictions' "cups" then resizing them to desired size (.070" in my case).

   

   

Offline Marx3

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Re: Air bleed thread size
« Reply #5 on: July 27, 2015, 04:05:41 AM »
I prefer using the press-in's that Cliff sells, but I have a bunch of his screw-in's lying around and I might as well use them. I just need to know what thread size they have... the air screw-in bleeds that Cliff sells...

Offline Ethan1

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Re: Air bleed thread size
« Reply #6 on: July 27, 2015, 07:57:55 PM »
I prefer using the press-in's that Cliff sells, but I have a bunch of his screw-in's lying around and I might as well use them. I just need to know what thread size they have... the air screw-in bleeds that Cliff sells...

 Cliff would be best to answer then, since he sells them.
Ethan

1972 Chevelle

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Offline 77cruiser

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Re: Air bleed thread size
« Reply #7 on: July 28, 2015, 03:48:50 AM »
I think 8-32 is the size you want.
Jim

Offline Marx3

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Re: Air bleed thread size
« Reply #8 on: July 28, 2015, 06:25:58 AM »
Thanks 77cruiser.
yeah, Cliff would know, but I figured people in here had installed them plenty of times, so someone would know too.


Offline Cliff Ruggles

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Re: Air bleed thread size
« Reply #9 on: July 28, 2015, 07:21:53 AM »
We sell them in 4-40, 6-32, 8-32, and 10-32.  8-32 is the most popular to use for DCR's and MAB's......Cliff

Offline Marx3

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Re: Air bleed thread size
« Reply #10 on: July 28, 2015, 08:42:51 PM »
Oh, I didn't know there were different sizes!
I will try an 8-32 tap first. Thanks.

Offline Marx3

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Re: Air bleed thread size
« Reply #11 on: August 03, 2015, 05:56:46 AM »
Is it UNF, UNC or?

Offline Ethan1

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Re: Air bleed thread size
« Reply #12 on: August 03, 2015, 04:17:38 PM »
Is it UNF, UNC or?

 For which size? All but the 10-32 are UNC. The 10-32 is UNF.
Ethan

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Offline Marx3

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Re: Air bleed thread size
« Reply #13 on: August 04, 2015, 12:52:19 AM »
the 8-32... but thanks for the info on the rest.