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Thread: Brake Booster vacuum hose and Weber carb

  1. #1
    Join Date
    Jul 2016
    Location
    Gold Coast
    Posts
    401

    Brake Booster vacuum hose and Weber carb

    Hi All,

    Just looking at my brakes and how to make them as best they can be, so I have a question about the brake booster hose and the weber card I have.

    I noticed that the booster hose is connected to the carb with a junction shared with the crank case emission valve, so I'm concerned that I'm not getting full vacuum for the booster with this shared arrangement.

    pics :
    IMG_20190522_100417.jpgIMG_20190522_100400.jpg

    I've tried to highlight the junction in the pics with a red circle.

    Any thoughts on this arrangement ?

    Thanks
    John

  2. #2
    Join Date
    May 2014
    Location
    Perth
    Posts
    314
    Quote Originally Posted by JohnboyLandy View Post
    Hi All,

    Just looking at my brakes and how to make them as best they can be, so I have a question about the brake booster hose and the weber card I have.

    I noticed that the booster hose is connected to the carb with a junction shared with the crank case emission valve, so I'm concerned that I'm not getting full vacuum for the booster with this shared arrangement.

    pics :
    IMG_20190522_100417.jpgIMG_20190522_100400.jpg

    I've tried to highlight the junction in the pics with a red circle.

    Any thoughts on this arrangement ?

    Thanks
    John
    My series 3 intake has a blank in it which I would of imagined would of been for vacuum for brakes I could be wrong not the best pic but you can see it in front of carby
    1960 series 2 143001010
    1976 series 3 91331709c
    03 discovery 2a td5 auto
    2010 cub supamatic drover

  3. #3
    Join Date
    Jul 2016
    Location
    Gold Coast
    Posts
    401
    Thanks for posting the pics and the info. That all tells me I should have a dedicated port on the carbie for the booster vacuum hose. I'll see what I can do.

    Cheers,
    John

  4. #4
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
    Posts
    1,407
    I have the same bolt with Banjo and two inlets. Pic tomorrow

    whitehillbilly

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