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Technical Source for brake adapter fitting

Discussion in 'The Hokey Ass Message Board' started by Doublepumper, Apr 23, 2019.

  1. Doublepumper
    Joined: Jun 26, 2016
    Posts: 609

    Doublepumper
    Member

    Trying to locate a 1/8" NPT to 3/8"-24 IFM fitting with a threaded shank long enough to thread into an unused master cylinder port. Do they even exist? :confused:
    Inkeddamuttshortfitting!!_LI.jpg
     
    Nailhead Jason likes this.
  2. Rich S.
    Joined: Jul 22, 2016
    Posts: 293

    Rich S.

  3. Rich S.
    Joined: Jul 22, 2016
    Posts: 293

    Rich S.

    Oldmics, belair and Johnny Gee like this.
  4. Doublepumper
    Joined: Jun 26, 2016
    Posts: 609

    Doublepumper
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    That is the one in my pic....and it's too short to seat.
     
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  5. tim troutman
    Joined: Aug 6, 2012
    Posts: 235

    tim troutman
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    I think I have got those at NAPA
     
  6. Doublepumper
    Joined: Jun 26, 2016
    Posts: 609

    Doublepumper
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    No go on NAPA....I tried them.
     
  7. irishsteve
    Joined: Jan 10, 2017
    Posts: 733

    irishsteve

    Check Edelman brass on line catalog.
     
  8. Beanscoot
    Joined: May 14, 2008
    Posts: 1,409

    Beanscoot
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    1/8 male pipe?

    Weatherhead 202x3 brass fitting. It's only 0.70" long, though.
     
  9. brigrat
    Joined: Nov 9, 2007
    Posts: 5,159

    brigrat
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    from Wa.St.

    So you are installing the brake light switch to the M/C? Novel idea if so! I remember some older single reservoir's doing just that, it was on the end of the M/C.
     
  10. Either make one from a hard line and a fitting or try a brake trailer tee.

    [​IMG]
     
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  11. Chiss
    Joined: May 12, 2017
    Posts: 222

    Chiss
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    from S.C.

    You can't File down the outer lip till Desired Depth is achieved for the Fitting?
     
  12. catdad49
    Joined: Sep 25, 2005
    Posts: 4,171

    catdad49
    ALLIANCE MEMBER

    Check your local hydraulic hose place, bring that fitting with you. Works for me!
     
  13. alchemy
    Joined: Sep 27, 2002
    Posts: 15,527

    alchemy
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    Crush washer?
     
  14. Doing the exact Same thing, I have the same speedway adapter and its too short. would love to find one that would work.
     
  15. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,005

    dreracecar
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    from so-cal

    How much more depth do you need??? could machine the hex down to set it deeper if very little is needed or as what was said use a crush washer or "Stat-O-Seal" (washer with a O-ring)
     
  16. Doublepumper
    Joined: Jun 26, 2016
    Posts: 609

    Doublepumper
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    Checked them....nope.

    Can't do that as it will encroach into the NPT portion of the fitting.

    There isn't one anywhere near me.

    Nope....fitting needs to seat on the inverted flare at the end of the fitting.

    Around 3/16" or so.

    Without getting all spaghetti, the only option I can see at this point is to drill out a port plug and braze a NPT fitting onto it, which seems a bit hokey to me. At this point it would seem there isn't a specific fitting, with a long enough threaded shank, to enable it to be used in an unused M/C port. I would think there must be a demand for one....there I go thinking again o_O
     
  17. TrailerTrashToo
    Joined: Jun 20, 2018
    Posts: 523

    TrailerTrashToo
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    The first post is about installing a hydraulic brake light switch.

    I need to raise a question about using hydraulic brake light switches in modern traffic. My frequent hobby driver has a hydraulic brake light switch, when I installed a high mounted 3rd brake light, I could it light in my rear view mirror. I found that it took a fair amount of foot pressure to turn on the brake lights. Just tapping the brake pedal would not turn on the brake lights.

    Consider a mechanical brake light switch.
     
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  18. J. A. Miller
    Joined: Dec 30, 2010
    Posts: 1,325

    J. A. Miller
    ALLIANCE MEMBER
    from Central NY

    When I say something like that, my wife always asks me "are you equipped to do that?" Lol
     
    Last edited: Apr 24, 2019
    raven and Doublepumper like this.
  19. egads
    Joined: Aug 23, 2011
    Posts: 691

    egads
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  20. Chiss
    Joined: May 12, 2017
    Posts: 222

    Chiss
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    from S.C.

    I was Talking About the Housing of MC not the Fitting. I Have Put A Seat In Before by Filing down the Shoulder. The Fitting will not be Touched.
     
  21. Doublepumper
    Joined: Jun 26, 2016
    Posts: 609

    Doublepumper
    Member

    This hyd. switch is the low pressure version, due to running disc brakes. After this futile search for a fitting, I'll most likely go with a mechanical type switch. Was hoping to use an unused M/C port.

    Ha! My wife has seen me build enough stuff over the years to know I'll eventually come up with something that can't or is near impossible to do. She is very understanding and kind to me in regards to my brain-isms ...at least when I'm around :)

    Nope. Checked them also.

    OK, got it. I thought of that, but am trying not to get too freaky deaky with all this...just need the correct fitting.

    Thanks to everyone that has tried to help....I appreciate it.
     
  22. Doublepumper
    Joined: Jun 26, 2016
    Posts: 609

    Doublepumper
    Member

  23. You might check with a motorcycle supplier. Harley has used those hydraulic switches for years and with the custom bike market there's all sorts of weird fittings available...
     
  24. saltflats
    Joined: Aug 14, 2007
    Posts: 10,099

    saltflats
    Member
    from Missouri

    Does this port in the master cylinder have a seat for the inverted flare?
     
    rjones35 likes this.
  25. Never2old
    Joined: Oct 14, 2010
    Posts: 636

    Never2old
    Member
    from so cal

    I used the Speedway fitting with a crush washer.
    Works fine.
     
  26. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,005

    dreracecar
    Member
    from so-cal

    without pictures of the brake master cyl and the issue at hand, its a guessing game as to the solution
     
  27. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,005

    dreracecar
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    from so-cal

    If there was a demand for them-- they would be available already
    But having machine shop capabilities, not that hard to make
     
  28. rjones35
    Joined: May 12, 2008
    Posts: 865

    rjones35
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  29. Doublepumper
    Joined: Jun 26, 2016
    Posts: 609

    Doublepumper
    Member

    Checked all my HD catalogs and found #63609-72, but it is also too short...looks to be the same fitting as the one from Speedway. Russell has a #240-723 fitting, but it is too long. It's intended to be used with a banjo fitting.

    Yes, but it is located too deep to use the normal length threaded fitting without bottoming out on the shoulder of the adapter before seating.

    Thought of that, but am concerned there won't be sufficient thread engagement, as the fitting's threaded shank is so short to begin with, at only 1/4" of exposed threads. It may be the only solution to use this fitting though. Just concerned about stripped threads.
     

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