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How do I plug the brake caliper lines?

This is a discussion on How do I plug the brake caliper lines? within the General Help forums, part of the LSx Technical Help Section category; I am pulling off my calipers to get them powder coated. How do I plug the lined so that all ...

  1. #1
    Member Sweet Chops's Avatar
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    How do I plug the brake caliper lines?

    I am pulling off my calipers to get them powder coated. How do I plug the lined so that all of my break fluid doesn't drain out.

    Thanks

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    Slow'er'Ass Mr. Luos's Avatar
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    How clean is the fluid??

    Brake fluid is cheap, and you will need to bleed anyways if you remove the caliper. Good time to 'flush' the system and put new fluid in.

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    Bone it like you own it FORD RECOVERY EXPERT's Avatar
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    Go to VatoZone, and on the help isle, they have a "Bypass Cap Assortment" that and some hose clamps should be all you need.

    Or use an old caliper, or just get some hose and clamp over it, then route the hose up higher than the master cylinder. Just don't get it on your paint.....


    I have HEARD of people clamping the rubber hoseline with visegrips.

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    Member Sweet Chops's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    How clean is the fluid??

    Brake fluid is cheap, and you will need to bleed anyways if you remove the caliper. Good time to 'flush' the system and put new fluid in.
    Fluid is in very good condition it was changed about 4,000 miles ago.

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    Member Sweet Chops's Avatar
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    Quote Originally Posted by FORD RECOVERY EXPERT View Post
    I have HEARD of people clamping the rubber hoseline with visegrips.
    That doesn't sound like a very bright idea. I like your first one.

    Thanks for the suggestions

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    just drain the fluid out... it's better to change it while you can anyway...

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    Member Sweet Chops's Avatar
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    Is it ok for the master cylinder to be drained?

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    Draining will be fine. The only reason I would be worried about draining was if you planned on it sitting for a long time. If its just acouple of days I doubt any seals will dry out.

    You can plug the lines with little rubber caps though. They sell them at AutoZone also.


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    Member Sweet Chops's Avatar
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    Quote Originally Posted by gnomee View Post
    You can plug the lines with little rubber caps though. They sell them at AutoZone also.
    That would be if i disconnected the flexable line from the hard plumbed line right? I can't see a plug fitting over the square fitting on the caliper.

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    Member Sweet Chops's Avatar
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    Quote Originally Posted by gnomee View Post
    Draining will be fine. The only reason I would be worried about draining was if you planned on it sitting for a long time. If its just acouple of days I doubt any seals will dry out.
    I plan on taking them off now and putting them back on in spring.

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    Senior Member bigrondownhiller's Avatar
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    A bolt and nut with new or the old copper washers should do the trick. Just make sure you replace the washers when you put the calipers back on.

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    Yeah you woud have to disconnect the rubber line.

    I could see sitting all spring with no fluid possibly causing issues with the seals in the master cylinder.

    Maybe not though, not ALL of the fluid will escape right away. They do not ship with fluid in them when you replace them.

    Hopefully somone who has done this can chime in for you.

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    Member Skippy's Avatar
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    I have had master cylinders set dry for years just so long as you dont step on the brake pedal. As long as the seals dont move in the dry cyl. all will be well. You dont have to worry about the seals drying out, brake fluid does not evaporate, but it does absorb moisture. If you live in a humid climate be sure to seal up the hose end somehow to keep moisture from building up.
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    Senior Member JaycenK's Avatar
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    Rmoving the callipers wont cause it to poor out. I had mine off for a week and it did not leak out. It is a sealed system. disconect the steal line and hang the ruber line up high in the fender well. I only had a couple drops when I rebuilt the entire front end.

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    Member Sweet Chops's Avatar
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    When I had them off the first time I filled 4 small butter tubs in 2 days. I kept adding fluid so that the master would't run dry. This time I plan on keep ing the calipers off all winter to smooth and powder coat.

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    Member Sweet Chops's Avatar
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    Quote Originally Posted by bigrondownhiller View Post
    A bolt and nut with new or the old copper washers should do the trick. Just make sure you replace the washers when you put the calipers back on.
    Have you done this and it worked? This seemes like the fasest way to do it. But I don't want to end up tring 3-4 diffrent things.
    I want a sure win idea. Right now I am thinking I will try the bolt and banjo washes and if that doesn't work I will drain the master.

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    Senior Member bigrondownhiller's Avatar
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    No I haven't tried it. There is not much pressure so I don't see why it won't work.

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    Member Sweet Chops's Avatar
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    Hugger Orange
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    Got it. What I did was disconect the flex line from the hard plumbed line. Then I slipped a rubber hose with RTV and a bolt screwed into one side over the hard plumed line. No drips yet.
    Thanks for help guys

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