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    Results 1 to 9 of 9
    1. #1
      Join Date
      Jan 2008
      Posts
      117

      Name that Fitting

      What is this fitting called in the automotive world? They are high pressure lines from a hydraulic pump.

      Mike

      Attached Images Attached Images  
      86 Buick GN, Stage 2 V6, Twin EFR Turbos


    2. #2
      Join Date
      Apr 2001
      Location
      The City of Fountains
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      Country Flag: United States
      I believe those are called bubble flares.

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
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      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    3. #3
      Join Date
      Jan 2008
      Posts
      117
      I want to replace these hard lines with flexible steel braided PFTE hose, what type of fitting do I need crimped on to the ends to replace these bubble flared tube ends?

      Mike
      86 Buick GN, Stage 2 V6, Twin EFR Turbos

    4. #4
      Join Date
      Apr 2001
      Location
      The City of Fountains
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      16,117
      Country Flag: United States
      Quote Originally Posted by Hemi8 View Post
      I want to replace these hard lines with flexible steel braided PFTE hose, what type of fitting do I need crimped on to the ends to replace these bubble flared tube ends?

      Mike
      Mike,

      You need to find out the size of the thread on those fittings and then get an adapter like this:

      https://holley.com/products/plumbing...arts/592032ERL

      They you have use flexible hose with AN-3 (or AN-4, depending on the size of the hard lines that you are replacing) fittings.

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @dr__efi
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    5. #5
      Join Date
      Jan 2008
      Posts
      117
      Thanks for the help, I think its a 12mm 1.0 thread so I ordered a fitting of this size to test fit.

      Mike
      86 Buick GN, Stage 2 V6, Twin EFR Turbos

    6. #6
      Join Date
      Jan 2006
      Location
      Oregon
      Posts
      1,773
      Country Flag: United States
      Like Andrew said, ISO metric bubble flare. What size are the lines, 3/16" [4.75mm] or 1/4" [6mm]? They look like 6mm lines if those are M12 nuts, but I believe you can get an adapter fitting to go from M12x1 to -04 AN, which might be your simplest option. We have M10x1 to -03 AN for our brake kits, but nothing like that in an M12.

      Tobin
      KORE3
      It's what I does.

    7. #7
      Join Date
      Apr 2007
      Posts
      193
      Quote Originally Posted by andrewb70 View Post
      Mike,

      You need to find out the size of the thread on those fittings and then get an adapter like this:

      https://holley.com/products/plumbing...arts/592032ERL

      They you have use flexible hose with AN-3 (or AN-4, depending on the size of the hard lines that you are replacing) fittings.

      Andrew
      Assuming those have the right thread, are you suggesting using them going into (presumably) the caliper using the flare of the fitting to contact the machined female flare seat (where the line's bubble flare contacted), or, with copper crush washers (perhaps with the end of the fitting ground flat/shortened) for an "external" seal location?

    8. #8
      Join Date
      Apr 2001
      Location
      The City of Fountains
      Posts
      16,117
      Country Flag: United States
      Quote Originally Posted by iadr View Post
      Assuming those have the right thread, are you suggesting using them going into (presumably) the caliper using the flare of the fitting to contact the machined female flare seat (where the line's bubble flare contacted), or, with copper crush washers (perhaps with the end of the fitting ground flat/shortened) for an "external" seal location?
      These fittings seal on the flare/seat, no copper crush washers needed or desired. Crush washers are for banjo fittings.

      Andrew
      1970 GTO Version 3.0
      1967 Cougar build
      GM High-Tech Performance feature
      My YouTube Channel Please Subscribe!
      Instagram @dr__efi
      I deliver what EFI promises.
      Remote Holley EFI tuning.
      Please get in touch if I can be of service.

      "You were the gun, your voice was the trigger, your bravery was the barrel, your eyes were the bullets." ~ Her

    9. #9
      Join Date
      Apr 2007
      Posts
      193
      Well, crush washers are not "only" for banjo fittings (used all over divider blocks, ABS pumps etc on the late model stuff, and on my antique British calipers with steel fittings very much like you show), but that's interesting & useful that the flare contact method is a known good solution. It's a fairly much steeper contacter than the bubble flare was.
      Works because the fitting it a more rigid material and can handle a "single line" of contact, I guess.




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