Brake Booster Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

farside847 · 07-01-2005, 05:57 PM

I just got a brake booster off a board member and Ive got a pretty good handle on how to install it. But I had one question: where does the vacume hook up? I have a stock 307 that originally had manual brakes.

thanks!

smbrouss70 · 07-01-2005, 06:02 PM

It should hook up to FULL Manifold vacuum, either a port on the manifold itself or to a port on the base of the carb.

farside847 · 07-01-2005, 06:05 PM

There is a plug in the top of the manifold behind the carb - would this be a full vacuum?

smbrouss70 · 07-01-2005, 06:11 PM

Yes, just take the plug out and get a fitting to put in there to allow you hook the vacuum hose up to. Make sure you use some form of thread sealer whether thread tape or the liquid type.

07-01-2005, 05:57 PM	#1
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	Brake Booster Help I just got a brake booster off a board member and Ive got a pretty good handle on how to install it. But I had one question: where does the vacume hook up? I have a stock 307 that originally had manual brakes. thanks! __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

07-01-2005, 06:02 PM	#2
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,784	It should hook up to FULL Manifold vacuum, either a port on the manifold itself or to a port on the base of the carb. __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build

07-01-2005, 06:05 PM	#3
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	There is a plug in the top of the manifold behind the carb - would this be a full vacuum? __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

07-01-2005, 06:11 PM	#4
smbrouss70 Registered User Join Date: Sep 2003 Location: Rayne, LA Posts: 2,784	Yes, just take the plug out and get a fitting to put in there to allow you hook the vacuum hose up to. Make sure you use some form of thread sealer whether thread tape or the liquid type. __________________ Steven "If dogs don't go to heaven, when I die I want to go wherever they went." -- Will Rogers R.I.P. Oscar R.I.P. Ratchet 1967 Pontiac GTO - Dad was the Original Owner 1970 Chevy 2wd SWB "Oscar's Truck" 1970 Chevy 2wd Blazer "Ratchet's Blazer" 2013 Chevy 2500HD Crew Cab Duramax/Allison Z71 LTZ "Brown Sugar" 2017 Chevy Suburban "BDB" 2020 Chevy Blazer Premier "Foxy" Member of Louisiana Classic Truck Club (LCTC) Shop Build



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