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04-13-2009, 09:26 AM
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#1 |
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Registered User
Join Date: Sep 2007
Location: san antonio tx
Posts: 11
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routing diagram for carburetor vaccum lines
does anyone know where i can get a routing diagram for the vaccum lines that run to the carburetor including the vaccum advance line for my 72" 350? i looked in the haynes manual but it is vauge it only shows the one line that runs from the sensor to the damper on the air cleaner. any help or shove in the right direction would be appreciated.
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04-13-2009, 10:14 AM
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#2 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: routing diagram for carburetor vaccum lines
most vendors carry the GM assembly manuals they show in very good detail the proper running of vaccume lines wire harnesses and oloads of other stuff to help you get as close to stock as you want it
it's a bit of a pain because theres no index and that means thumbing thru hundreds of pages sometimes to find the right illustration
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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04-13-2009, 01:16 PM
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#3 |
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Registered User
Join Date: Sep 2007
Location: san antonio tx
Posts: 11
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Re: routing diagram for carburetor vaccum lines
c downs
when you say vendors ,are you referring to a dealership, auto parts store or mechanic? i have a manual ( from an auto parts store)and like i said it only shows the sensor to damper line ,nothing else. can you answer me this the line coming from the vaccum advance on the distributor it goes to the fitting coming from the side of my quadrajet rochester on the right hand side ( sitting in the truck) is this correct? |
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04-13-2009, 01:20 PM
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#4 | |
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Senior Member
 
Join Date: May 2002
Location: Hammond, WI
Posts: 1,817
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Re: routing diagram for carburetor vaccum lines
mlsprouse, for vacuum advance, IIRC, you want to have ported vacuum. meaning that you only want the advance to occur when you give it the gas, not all the time (manifold vacuum). if you look up the users manual for a quadrajet, i think it is on the left (driver's side of the truck). it's gonna have the same type of nipple on the carb, just like what is on the advance module.
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Mike 2001 Dakota R/T - Silver CC - 1 of 1671 •360 w/46RE •392 limited slip 1972 Chevy Suburban - Turquoise/Black 1969 Chevy C/10 - Blue LWB •350 w/ 700R4 •3.73 posi •PS PB A/C - SOLD  Using your turn signal is not "giving information to the enemy" 67-72 FAQ Quote:
Last edited by nightmare; 04-13-2009 at 01:22 PM. |
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04-13-2009, 01:29 PM
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#5 |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: routing diagram for carburetor vaccum lines
I’ve got all my accessories hooked to the proper locations. You can see the pictures on the link below. (Sorry, I’m at work and no clear pic to attach!)
s/t http://67-72chevytrucks.com/vboard/s...d.php?t=338684
__________________
1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. 
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04-13-2009, 02:50 PM
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#6 |
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Registered User
Join Date: Sep 2007
Location: san antonio tx
Posts: 11
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Re: routing diagram for carburetor vaccum lines
sport truck
thanks for the pics ,nice looking engine ,ive got ya beat, been wrenching on mine for three years. your application is a little different than mine but i noticed for the vaccum advance you have it going to the port on the front of the carb is that the usual application or are they different? i have it set up on the right side of the carb right now( sitting in the truck ) i was thinking of running the vacuum advance the way your is and the port i had the vaccum advance going to, run that to the air cleaner and the other fitting in the front of the carb i was going to close off since i have no canister. im so close to getting this thing running its not even funny, im chomping at the bit to hear her rumble again! |
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04-13-2009, 07:15 PM
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#7 |
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Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: routing diagram for carburetor vaccum lines
No problem! If you have anything else let me know.
s/t
__________________
1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe.
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