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#1 |
Registered User
Join Date: Nov 2002
Location: Haysville, KS
Posts: 118
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Power Brake Master Cyl. ?
I have a question for all of you carburator/brake system gurus out there.
The boost vacuum used to come off of a port in one of the runners in the stock 350 manifold (quadrajet). When I went with the edelbrock intake and performer carb, I plumbed it to the big fitting on the back side of the carb. I also installed a new check valve fitting where the hose plugs into the booster. I was adjusting something the other day with the engine running and noticed brake fluid dripping out of the forward side of the master cyl. It's coming out around the cap at the rate of about 10 drips per minute. The truck has set for about a year and a half at this point, so did I plumb it wrong or do I need a rebuild kit for the master cyl. or maybe just a gasket for the lid (yeah, right). Thanks in advanve for your input. TS
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I can do all things thru Christ, but he evidently doesn't want me to beat that Camaro light to light.... |
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#2 |
Formerly yellow72custom
Join Date: May 2001
Location: Austin, TX
Posts: 7,531
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Was this right after you hit the brakes?
Mine always drips a little after i fill it up and hit the brakes......i think most of them do. If the brakes work fine, i wouldn't worry about it unless it contiuned to drip while driving the truck with the fluid level below where it should be. Inspect the rubber gasket too....if it is torn or rotted, it will need replacement.
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'72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg |
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#3 |
Registered User
Join Date: Feb 2003
Location: Wichita Kansas
Posts: 223
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I am running pretty much the same setup as you edelbrock 1407 and am running the vaccum off of the rear of the carb with no problems. You may have to much fluid in the master cylinder which will cause extra pressure and force the fluid out under the rubber gasket but you have probably already checked for that. You may have to look into rebuilding you cylinder at this point.
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1972 chevy k10 4x4 longbed 4-inch lift, 3.73 front/rears, frame off nearly complete 1972 chevy k10 4x4 longbed parts truck, known as the "ugly green machine" 1990 GMC 3/4 shortbed ext cab Always in need of 67-72 parts in central ks. |
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