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Thread: Brake fluid contamination

  1. #1
    President Member
    Join Date
    Apr 2008
    Location
    Seligman, Az USA.
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    4,997

    Brake fluid contamination

    Well, my master cylinder went south after only 5 years. When I drained it I was surprised to find the once clear fluid had become amber in color with fine particles of rust. This caught me by surprise due to the truck being in So. Cal. with it's very dry & low humidity climate. It made me wonder about many of you where humidity is high. Dot 3 sucks moisture out of the air so the advise we get for flushing our brake systems every 2 years is wise. I certainly will adhere to that from now on for sure!
    59 Lark wagon, now V-8, H.D. auto!
    60 Lark convertible V-8 auto
    61 Champ 1/2 ton 4 speed
    62 Champ 3/4 ton 5 speed o/drive
    62 Champ 3/4 ton auto
    62 Daytona convertible V-8 4 speed & 62 Cruiser, auto.
    63 G.T. Hawk R-2,4 speed
    63 Avanti (2) R-1 auto
    64 Zip Van
    66 Daytona Sport Sedan(327)V-8 4 speed
    66 Cruiser V-8 auto

  2. #2
    President Member
    Join Date
    Oct 2005
    Location
    St. Louis, Mo.
    Posts
    1,566
    I live in the midwest and that is why I now run Silicone in all classic cars. I got tired of rebuilding the systems.

    You probably should also check your wheel cylinders also. While flushing the fluid will get crap out of them, that crud could also cause one side to stick thus affecting braking
    Milt

    1947 Champion (owned since 1967)
    1961 Hawk 4-speed
    1967 Avanti
    1961 Lark 2 door
    1950 Commander Starlight
    1988 Avanti Convertible

    Member of SDC since 1973

  3. #3
    President Member
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    Apr 2009
    Location
    Hawthorne, California, USA.
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    1,809
    I live in So Cal and I still flush the brake systems on my vehicles every couple of years because of moisture contamination. I have an air compressor powered vacuum brake bleeder, so it makes the job of flushing out the brake system fairly easy. Bud

  4. #4
    President Member
    Join Date
    Apr 2008
    Location
    Seligman, Az USA.
    Posts
    4,997
    While unpacking from the move I found I have 2 of those Bud. Guess I need to use them more often!
    59 Lark wagon, now V-8, H.D. auto!
    60 Lark convertible V-8 auto
    61 Champ 1/2 ton 4 speed
    62 Champ 3/4 ton 5 speed o/drive
    62 Champ 3/4 ton auto
    62 Daytona convertible V-8 4 speed & 62 Cruiser, auto.
    63 G.T. Hawk R-2,4 speed
    63 Avanti (2) R-1 auto
    64 Zip Van
    66 Daytona Sport Sedan(327)V-8 4 speed
    66 Cruiser V-8 auto

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