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Airvalve removal made easy

Discussion in 'Tips & Tricks!' started by AndreZA, Nov 8, 2013.


  1. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    This is just a quick view in how to remove the airvalve piston and spring on Iwata and other Chinese knock-off. I used my Iwata HP-CS Eclipse for this demo.

    I just got me cheap tweezers from the local pharmacy. I just cut of the sharp edges and sanded them smooth. Tried to make them the same width as the openings of the valve nut.
    air_valve_03_sml.jpg

    The rubber o-ring is there to help keeping the tips pinched. This way you don't need to worry about gripping the nut, just to turning it.
    air_valve_01_sml.jpg
    air_valve_02_sml.jpg

    This is where you need to go into.
    air_valve_04_sml.jpg

    Perfect fit. Adjust the o-ring so that the tips have a good grip.
    air_valve_05_sml.jpg

    You will end up with a nut ready to put back.
    air_valve_06_sml.jpg

    Piston and spring exposed.
    air_valve_07_sml.jpg

    Very few parts in the airvalve.
    air_valve_08_sml.jpg

    I do have a Sparmax removal tool but it only fits Sparmax guns. You can modify it to fit Iwatas but not all of them have the same size nuts so you will need one for each gun.
    air_valve_09_sml.jpg
    J000seph, ZisisBFL and jacksparrow like this.
  2. Diegojavbau

    Diegojavbau Air-Valve Autobot!

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    Excellent guide , thanks for share !!!!
  3. Mr.Micron

    Mr.Micron Royal pain in the air hose Admin

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    Outstanding Guide.. I here Sticky:D
  4. wmlepage

    wmlepage Elite Member! Elite Member!

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    I had seen a similar tool in the vid by Dru Blair, the one outlining the installation of his valve spring, but being me I came up with this one night at work. This was after I got the valve tool Andre listed as a Sparmax tool and realized it only for 2 of my 5 Iwata's.


    Sent from my iPad using Tapatalk HD

    Attached Files:

  5. flycatchr

    flycatchr Detail Decepticon!

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    brilliant Andre. I modified a screwdriver with a very thin angle grinder blade to do something similar for an industrial heat gun and thought it might work, but this is a much better plan considering the shapes involved.
  6. Tat2missyj

    Tat2missyj Gravity Guru

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    Question: Under what circumstances would I need to remove the air valve?

    MJ
  7. AndreZA

    AndreZA Elite Member! Elite Member! Artist of the Month!

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    1. when the seal is damaged
    2. when you want to replace the spring due to wear or upgrading to softer one
  8. ad fez

    ad fez kind of a big deal = Admington

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    Fyi.... You can now geta similar tool from marissa at foxystudio.com
  9. galileo1

    galileo1 Young Tutorling

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    What about the sleeve/casing the valve goes into (brass colored tube inside the brush's valve area)? When disassembling my Revolution to give it a bath in the ultrasonic cleaner, I had to also remove the sleeve/casing so water didn't get trap between the casing and the airbrush body. I had to use a toothpick from where the trigger guide slips into to be able to pull it out.

    is there a specific tool Iwata provides for this?

    thanks
  10. bpwmd

    bpwmd Young Tutorling

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    Why would you need to remove it? Sorry I'm new to airbrushing
  11. Diegojavbau

    Diegojavbau Air-Valve Autobot!

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  12. bpwmd

    bpwmd Young Tutorling

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    Ahhhhh ok
  13. jord001

    jord001 Air-Valve Autobot!

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    I use tweezers too, much easier and a lot cheaper as I already have several. Nice tip Andre'.

    Lee
  14. Nessus

    Nessus Gravity Guru

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    I made this yesterday from a #82 key blank (only 1 cent from the hardware store, since I wasn't having them cut it for me), using a moto-tool cutting wheel and micro files:
    Airvalvetool1.jpg
    J000seph and Diegojavbau like this.

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