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Thread: Need Help. Difficulty with Earl's Speed Seal Hose Ends.

  1. #1

    Need Help. Difficulty with Earl's Speed Seal Hose Ends.

    I'm installing Earl's Speed Seal Hose Ends onto their braided/Teflon Speed-Seal Hose, in the -3AN diameter, for use as brake lines. There's this little brass ring (called the olive) that pushes up onto the end of the hose and the brass is supposed to go over the OD of the Teflon tube, and under the ID of the stainless braid. I've watched all the internet videos that I can find, and even bought the braid-spreader tool that Earl's sells (so I understand the importance of spreading the braid off of the Teflon tube). My problem is pushing the Teflon tube far enough into the brass olive. Inside the olive there is a little "ramped" barb, and I think you are supposed to push the Teflon tube past this barb until it bottoms out on the brass flat. The tube goes in easily up to the barb, but it is very difficult to push past the barb. The only way I've managed to do it (in several tries) is to chamfer the OD of the end of the Teflon tube slightly with an xacto knife, then bang that olive against a flat immobile surface for a half hour getting only thousands of an inch of moment with each bang.

    That method got the tube to go all the way in to the flat, but I worry that I'm beating the end of the tube to death. There must be some trick that I'm missing.

    Note that I am careful to have a clean 90 degree cut on the end of the tube (made with an angle grinder/abrasive cut off wheel). Also, I'm careful to keep the tube aligned axial to the olive, so my problem isn't one of misalignment. I've tried multiple hose ends, and I am 100% sure that everything I purchased is -3AN Earl's speed-seal and speedflex products which should work together.

  2. #2
    After assembling several more hose ends I can answer my own question. One drop of Earl's hose assembly (184004ERL) oil down in side the olive modifies the friction enough to make it much easier to slide the Teflon tube in. I should have thought of that earlier because I also found that this same oil made assembly of the swivel-seal and auto-fit tube ends on the braided/rubber hose go much more smoothly. The oil has the thickness of honey so it stays where you put it... and it is supposedly safe for Teflon and rubber. I highly recommend it. One bottle is enough to do several cars.

    Note that I tried some thinner oils that I had available around the shop, and they did not work nearly as well as this stuff.

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