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Thread: Orifice Tube Install

  1. #51
    Senior Member Morpheus's Avatar
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    ^Dennis, you could probably make and sell those for people... I know I'd buy one.
    Brandon S.

    2014 Honda Civic EX
    2007 Volvo S60R


  2. #52
    Senior Member DMC5180's Avatar
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    I just took the tube and ran it through a vertical band saw. Then dressed the slot with a micro file followed by edge debuting. Although you don't see it in the photo the tube is about 6 inches long.

    The orifice tube insertion and removal tools I've found online don't work like this one. They are for orifice tubes that have "ear tabs" that the tool hooks around to pull on. I wasn't able to find one that worked the way I wanted it too. So, I made my own.


    Dennis
    DENNIS

    VIN 5180, Frame 3652, STAGE II​, EPS​, DM-eng Solid State Solutions (RPM Rly, Dm.Lt.Mod., Fan Fail Mod. , FAN Rly, HS.Rly) , HID headlights, SPAX user since 2009, Eibach springs, M Adj. Rear LCA's, DPNW poly-sway bar kit, DMCEU LCA Stabilizer link kit, DMCMW Illuminated door sills, Aussie Illuminated SS Shifter plate, REAL MOMO EVO Steering wheel, DELOREANA Extended View Side Mirrors w/ Heaters, DELOREANA LED Door Lights.

  3. #53
    Senior Member DMC-81's Avatar
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    Thanks again Dennis for the tips on making the tool.

    I agree with Brandon that it is a great product idea.
    Dana

    1981 DeLorean DMC-12 (5 Speed, Gas Flap, Black Interior, Windshield Antenna, Dark Gray)
    Restored as "mostly correct, but with flaws corrected". Pictures and comments of my restoration are in the albums section on my profile.
    1985 Chevrolet Corvette, Z51, 4+3 manual
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  4. #54
    Senior Member
    Join Date:  Feb 2013

    Posts:    169

    Broken OT?

    Can anyone tell me if this is a broken orifice tube? It's 2 inches into the evaporator pipe.Screenshot_20220827-211009.jpg
    And how can I get it out?
    Thanks

  5. #55
    Senior Member 82DMC12's Avatar
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    Location:  Olathe, KS

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    Sure looks like it to me
    Andy Lien

    VIN 11596 Jan 1982 build - owned since Nov. 2000!
    Total frame-off restoration completed 2021-2023

    Photography and Backpacking is life.

    Was Fargo, ND
    Now Kansas City

  6. #56
    Administrator Ron's Avatar
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    Get one of these: https://www.centurytool.net/Gm_Ford_...p/msc91009.htm

    Or you can use a screw. Either way, make sure you run it eight down the center to avoid piercing the tube.

  7. #57
    Senior Member Bitsyncmaster's Avatar
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    Location:  Leonardtown, MD

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    My VIN:    03572

    I used air pressure to blow mine out. If your orifice is plugged little air is needed if not you need more air flow but the hole is pretty small so still should work.
    Dave M vin 03572
    http://dm-eng.weebly.com/

  8. #58
    Senior Member
    Join Date:  Jan 2019

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    Since the thread mentions the variable orifice tubes, those that have installed one, are they noisy as some owners have stated them to be?

  9. #59
    Senior Member 82DMC12's Avatar
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    Quote Originally Posted by dmcman73 View Post
    Since the thread mentions the variable orifice tubes, those that have installed one, are they noisy as some owners have stated them to be?
    I have never noticed this.
    Andy Lien

    VIN 11596 Jan 1982 build - owned since Nov. 2000!
    Total frame-off restoration completed 2021-2023

    Photography and Backpacking is life.

    Was Fargo, ND
    Now Kansas City

  10. #60
    Senior Member
    Join Date:  Jan 2019

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    Quote Originally Posted by 82DMC12 View Post
    I have never noticed this.
    Good to know. I have a variable one and just the plain regular GM one, deciding which one to install. I've read that owners that did install a variable one could hear a very noticeable whine in the system as the pressures changed.

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