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#1 |
Still Green but learning
Join Date: Nov 2004
Location: Central NC
Posts: 1,895
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Break booster install vacuum question
Hey guys. I got the summit brake booster kit link here. I have some questions about connecting up be back in. Have a 71 C10 with a quadrajet carburetor and I have pulled a fitting off the back side of the carburetor where I think the vacuum hose needs to connect. Struggling to figure out what size bar fitting each to go back in there oh, the parts store and hardware store neither have one where I can check the fitting of the plug that was in it. I'm guessing it's 9/16 but not sure of the thread pattern so that I can order the right Barb fitting or find it. Anybody that can confirm the thread and size for that pork?
https://www.summitracing.com/parts/SUM-760197
__________________
-- Cory 71 Cheyenne 10 - SWB, 350, "3 on the tree" AC cab 07 Suburban LTZ 4x4 2010 Acura TL 98 Mastercraft "FrankenStar" 225 27253 UPS/USPS IIOY....nope never was |
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#2 |
Senior Member
![]() Join Date: May 2016
Location: Escondido CA
Posts: 574
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Re: Break booster install vacuum question
1/4npt
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#3 |
Senior Member
![]() Join Date: May 2016
Location: Escondido CA
Posts: 574
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Re: Break booster install vacuum question
What you need is a brass fitting like the one pictured 1/4 pipe x inverted flare and an oem tube. That way you can avoid connecting your vaccum hose to a straight fitting coming out the back of your carb and putting a 90 degree bend in your hose. If you get those two items your hose will stay straight to you booster check valve and a cleaner look.
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#4 |
Still Green but learning
Join Date: Nov 2004
Location: Central NC
Posts: 1,895
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Re: Break booster install vacuum question
Awesome guys Thanks!
__________________
-- Cory 71 Cheyenne 10 - SWB, 350, "3 on the tree" AC cab 07 Suburban LTZ 4x4 2010 Acura TL 98 Mastercraft "FrankenStar" 225 27253 UPS/USPS IIOY....nope never was |
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#5 |
Still Green but learning
Join Date: Nov 2004
Location: Central NC
Posts: 1,895
|
Re: Break booster install vacuum question
Thanks again guys, was able to find the right 90degree fitting so I can just run hose straight to the booster (at least it looks right)
![]() thanks!
__________________
-- Cory 71 Cheyenne 10 - SWB, 350, "3 on the tree" AC cab 07 Suburban LTZ 4x4 2010 Acura TL 98 Mastercraft "FrankenStar" 225 27253 UPS/USPS IIOY....nope never was |
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#6 |
Still Green but learning
Join Date: Nov 2004
Location: Central NC
Posts: 1,895
|
Re: Break booster install vacuum question
hey guys, trying to do this install tonight, I have a simple qeustion I cant find the answer to. I have a firewall boot for the pin to pedal connection. Does the cone go toward engine or in the cab .... I know seems dumb but that one question is holding me up and I didnt have one on my OEM setup (that I can find)
__________________
-- Cory 71 Cheyenne 10 - SWB, 350, "3 on the tree" AC cab 07 Suburban LTZ 4x4 2010 Acura TL 98 Mastercraft "FrankenStar" 225 27253 UPS/USPS IIOY....nope never was |
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#7 |
Senior Member
![]() Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,844
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Re: Break booster install vacuum question
In the cab.
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#8 |
Still Green but learning
Join Date: Nov 2004
Location: Central NC
Posts: 1,895
|
Re: Break booster install vacuum question
Awesome thanks!! That is the way I did it but I just wanted to be certain never messed with this before... Now I can go out there and tighten it all up.
Gonna bleed it in the morning getting to late now. **update, bled out hooked up and works great. about hit my head on the glass teh first time I was up to speed and went to stop ![]()
__________________
-- Cory 71 Cheyenne 10 - SWB, 350, "3 on the tree" AC cab 07 Suburban LTZ 4x4 2010 Acura TL 98 Mastercraft "FrankenStar" 225 27253 UPS/USPS IIOY....nope never was Last edited by phlegm; 02-22-2020 at 04:35 PM. |
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