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  • Brakes: Brake hoses at hydrovac

    63 R2 Hawk, power disc brakes : I did an oops, didn't notate which brake hose went where at the hydrovac. Hose on the left is for the rear brakes. Where to connect to hydrovac, front under stop light switch or lower rearmost connection? No help from parts or shop manuals.
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    Last edited by tim333; 10-15-2015, 03:57 PM.

  • #2
    There shouldn't be one hose to the rears only. One hose is the input from the master cylinder (rear port) The other is the boosted output hose to ALL wheels. (cast iron end cap on the slave cylinder) It is not designed for a split system. If you just boost the rear brakes you will lock them first and spin out. Probably something you don't want to do!
    Bez Auto Alchemy
    573-318-8948
    http://bezautoalchemy.com


    "Don't believe every internet quote" Abe Lincoln

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    • #3
      Ok, the hose on the left goes to a line that runs along the frame rail, didn't follow it past the front wheel. The hose on the right goes to a line to a tee about 5" below the picture, and then to the front brake.....so that must be the feed to the brakes and the other line must come the fluid reservoir. Do you concur? I'll connect that to the rear port of the hydrovac.
      Last edited by tim333; 10-15-2015, 10:04 PM.

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      • #4
        Yes, most likely, as the master cylinder is under the drivers floor panel. Hope it works well for you. If it is an original hydrovac be sure to add some neatsfoot oil to the plug at the back of the vacuum chamber. They had leather seals that need to be kept supple. The new ones use rubber, and it's not needed.
        Bez Auto Alchemy
        573-318-8948
        http://bezautoalchemy.com


        "Don't believe every internet quote" Abe Lincoln

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        • #5
          Sorry I'm still unsure and installing new hydrovac today. The hose from the line going to the tee at the left from the wheel goes to center or lower rear most port of the hydrovac?

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          • #6
            No, the line running to the master cylinder, is the input, and the rear port. The output to all brakes, and the line to the brass "T" is off the front port of the booster. It should be easy to recognize, because it is on the end cap of the booster cylinder. The end cap is a big hexagonal cast iron nut on the end of the protruding tube on the front of the cylinder.
            Bez Auto Alchemy
            573-318-8948
            http://bezautoalchemy.com


            "Don't believe every internet quote" Abe Lincoln

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            • #7
              Thanks, rather be safe than sorry.

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