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Thread: circulate brake/ACE/PS(?) fluid?

  1. 6th August 2008, 03:55 PM #1
    Pedro_The_Swift's Avatar
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    circulate brake/ACE/PS(?) fluid?

    Theres been a quite a few posts on the advantages of circulating fluids in a D2,, and I can understand the benefits,,
    I'm just curious about the physical aspects,

    is there a RETURN from the calipers/ABS block to the resoivior?(RON!!!)

    I know there is a return for ACE and PS,

    does the fluid near the caliper get circulated?
    or just in the ABS block?
    "How long since you've visited The Good Oil?"

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  2. 6th August 2008, 04:46 PM #2
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    brake fluid doesnt circulat at the calipers it just gets pushy....

    the only way to correctly circulate the fluid in a brake system is to replace it and if you dont have the OEM gear to make the system bleed up your best bet is thus


    change the fluid once

    go for a nasty drive where your hard on the brakes and TC

    change the fluid again...
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  3. 6th August 2008, 05:42 PM #3
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    Quote Originally Posted by Pedro_The_Swift View Post
    is there a RETURN from the calipers/ABS block to the resoivior?(RON!!!)
    I suspect that any flow from the caliper back around to the reservoir would result in no brakes!
    Ron B.
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  4. 6th August 2008, 05:52 PM #4
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    so does the application of TC circulate fluid?

    the ABS Bloc controls both TC and ABS, right?

    both work by the "alternation" of pressure in the brake lines, right?

    pressure on for TC, pressure off for ABS,

    it cant be "pressure" (or can it?) that degrades brake fluid, so it has to be heat,, (disregarding moisture)

    does the ABS valve bloc create heat?
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
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    '03 4.6 V8 HSE D2a with Tornado ECM
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    '21 to Infinity and Beyond!

    1988 Isuzu Bus. V10 15L NA Diesel
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  5. 6th August 2008, 05:53 PM #5
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    Rovacom will pulse the modulators in the system, it cycles through each one and runs it for about 8 seconds.

    When I did my Disco I bled the brakes until we got clean fluid, pulsed the modulators and then bled the system again until we got clean fluid.
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  6. 6th August 2008, 06:33 PM #6
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    Quote Originally Posted by dm_td5 View Post
    Rovacom will pulse the modulators in the system, it cycles through each one and runs it for about 8 seconds.

    When I did my Disco I bled the brakes until we got clean fluid, pulsed the modulators and then bled the system again until we got clean fluid.
    What a cunning idea!
    Ron B.
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