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Another Brake Line Question

Discussion in 'Early CJ5 and CJ6 Tech' started by RedWing, May 9, 2020.

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  1. Jun 21, 2020
    djbutler

    djbutler Sponsor

    Rio Linda CA
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    I have had good results using the tool that Eastwood sells for making double flares on steel or NICU tubing. Beware trying to flare stainless steel tubing, even the Eastwood tool couldn't make a good double flare on some stainless tubing from SSBC. I did get a good flare after doing a heat anneal on that stainless tubing.

    Don
     
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  2. Jun 21, 2020
    Keys5a

    Keys5a Sponsor

    Florida Keys
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    As mentioned, stainless is harder to work with, especially when flaring. I also have the Mastercool flare set that works well, about the only tool that consistently does the job. At least once done in stainless. It will nearly outlive the rest of the vehicle.
    -Donny
     
  3. Mar 13, 2021
    truckee4x4

    truckee4x4 Grant Kaye 2023 Sponsor 2022 Sponsor

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    Does anyone have any overhead view pics of the OEM front brake lines on their rig with the body off the chassis?
     
  4. Mar 18, 2021
    Focker

    Focker That's a terrible idea...What time? Staff Member

    WA
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    I looked through some build threads and found this...

    My First Frame Off Restoration

    Dne007 takes great pics of her builds...
    Yep, Bought A '68 Cj5(project)

    Just browse through some builds and you can find what you're looking for.
     
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  5. Mar 18, 2021
    truckee4x4

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    Thank you! I was thinking to myself that is what I need to do and you beat me to it.
     
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  6. Mar 19, 2021
    Jonbbrew

    Jonbbrew Member

    Paso Robles, CA
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    X2. It’s what I did. Made all my own lines too.
     
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  7. Mar 20, 2021
    truckee4x4

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    I think I'm going to run some bailing wire as a mockup, or maybe Tig rod before I crack into the CuNIFer reel I have. My mentor on this project is too buried in his own world to help me any time soon so since I'm on my own I invested in some brake line tools.

    This 4-way fitting is buried somewhere outside in the snow on the old lines....will I be digging it up out of the snow if I don't have a replacement?

    Wouldn't it just be a line from the front reservoir of the cylinder to a 3-way Tee that sends line to each of the LF/RF wheels?

    It's early and I haven't had all my coffee yet and I'm scratching my head thinking about where all the lines go to/from this 4-way.
    UNADJUSTEDNONRAW_thumb_649a.jpg
    Pic of someone else's build:
    UNADJUSTEDNONRAW_thumb_73f2.jpg
     
    Last edited: Mar 20, 2021
  8. Mar 20, 2021
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

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    That's got to be for a single reservoir master cylinder. '66 will have a single reservoir MC.
     
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  9. Mar 20, 2021
    truckee4x4

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    I have added a dual reservoir kit (Herms)...so am I missing anything with this rough layout?
    VinQof2IQaGwtbZwqzmjFA_thumb_7422.jpg
    (EDIT - Changed out the diagram and added the actual connections to the PVC-B Proportioning Valve)
     
    Last edited: Mar 20, 2021
  10. Mar 20, 2021
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

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    Looks good to me! (y)
     
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  11. Mar 20, 2021
    truckee4x4

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  12. Mar 20, 2021
    Jonbbrew

    Jonbbrew Member

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    I am starting to wonder since one of the things i just recently did was rebuild my brake system from the PO. I know he/she did not put a proportioning valve in the system. There is only the "T" on the front axle and rear, but the PO did place an import Vacuum Booster with a dual master cylinder.

    So would it be safe to say with a dual master cylinder a proportion valve is not required?
    jeep brake booster.jpg
     
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  13. Mar 21, 2021
    truckee4x4

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    Although I am by no means an expert, I think it is advisable on a vehicle, like mine, with discs up front and drums in the rear to be able to meter the hydraulic pressure differently between the two systems.

    I'd love to hear from anyone else that runs one about where they put it. My mechanic buddy suggested the firewall for ease of adjustment, but I'm thinking on the frame rail aft of the master cylinder. I know it won't be the easiest location to get to under the body but I'd rather not have to deal with body/frame (pigtails) and I'm months out from putting the tub on and I want to get this part of the project done.

    Does anyone see any issues with installing it here?
    UNADJUSTEDNONRAW_thumb_7428.jpg
    I don't have stock exhaust so until my Waldon's order shows up I only have this other user's picture to go on:
    UNADJUSTEDNONRAW_thumb_7402.jpg
     
    Last edited: Mar 21, 2021
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