Master cyl leaking?[69 wildcat]

Discussion in 'Buick FAQ' started by Karma, Jul 3, 2023.

  1. Karma

    Karma Well-Known Member

    Guessing this isnt good. (Picture attached).

    1). If this is leaking will I need to replace the brake booster aswell?

    2). Guessing replace the lines aswell most likly will break when trying to replace a cyl anyways, is there a good site to source the right line for my car?(69 wildcat 2 door).

    3). I heard there's a company that makes disc brake conversion that bolts right up does anyone know what that company is and if they'll have anything for my car? Or is doing a disc brake conversion is worth it.
     

    Attached Files:

  2. TrunkMonkey

    TrunkMonkey Totally bananas

    It could be the cap seal on the master cylinder that is leaking.
    It could be the piston in the cylinder leaking at the back and weeping where it mounts on the firewall.
    It could be the lines.

    You can use a "fitting/line/flare nut wrench" (like below) and gently work it back and forth loosen/tighten and see if you can get the lines loose without twisting or breaking the tubing.

    If you try any other type wrench, or if the fittings are badly corroded, you risk rounding the fittings and then you will be replacing the lines.

    Can you tell if the two lines go from the brake master cylinder to a "metal block" down on the frame?

    If so, you can likely get the correct lines.

    The Booster may be fine, so, I would look at just replacing the master cylinder first.

    Typically on an older car that has been sitting for many years, all the brake components are corroded, the 4 wheel brake cylinders, soft lines to the cylinders, and you may be able to flush the body/metal lines.

    As far as disc brakes, some will convert front to disc, and some will convert all four. There are "kits" available, and some people simply buy OEM parts from a later year to do the conversions.

    It can vary on cost, depending one how far you go, but with Disc brake spindles, and all the parts. you are looking at about $500 and up for just the front, and about double for all 4 wheels.

    Not knowing the condition of drums and all the other brake parts, vs the cost of conversion. Figuring out the total cost to replace everything for drum brakes, then subtract for total cost for disc conversion, front or all to decide if you want to spend the money.

    Having good brakes, especially if you are adding power to the car and driving it more aggressively. Trying to stop a 5,000 car from higher speeds, disc brakes start making more sense.

    There are good threads on brake conversions on the forum, search and read up, and once you have waded through, and still have questions, post in the "whoa and the sway" forum.
     
    1973gs, Karma and john.schaefer77 like this.

Share This Page