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Tuning FX Impact M3 a hidden O ring in 1st regulator. Not found on FX diagram

mubhaur

Member
Nov 8, 2015
1,460
58
Karachi, Pakistan
    Screenshot_20220525-032343_Write on PDF.1653431110.jpg


    Hello Friends, 

    Today I explored another thing new to me about impact M3.

    Infact a few days ago I had to test some parts that I have sent to some friends in US. Regulator pistons made of peek were also included in the tested and dispatched parts.

    For testing, I installed the new peek pistons in my M3 regulators.

    To cut the long story short, I have been facing leakage issue from the 1st reg breathing hole of my Impact M3 after completion of above mentioned testing. 

    I replaced all the O rings of the regulator many times and also replaced the piston but of no use.

    After investigating for "TWO DAYS" I found that there is an internal O ring in part D97. O ring size is 4 × 1.5 mm 70 shore.

    This O ring has not been shown in the part diagram provided by FX on their website.

    It is tricky to uninstall this O ring and even more tricky to install a new one. 

    I thought I should help save the time and effort of all those who will ultimately face the failure of this O ring and there is no clue of this O ring in the diagram. 

    This is installed in the stainless Steel part in a groove just like a bigger O ring of 90 shore is installed in the regulator body of 2nd reg.

    I hope this will help and save time and effort of users. 

    Regards,

    Umair Bhaur 
     

    Seeker

    Member
    Jan 23, 2022
    314
    12
    Europe, Poland
      It's good you share that info with FX. Question is if they plan to do anything about it. I guess you also let them know about oring stiction issue.

      In some domains companies pay the users if they discover any issue/flaw in the product so that they can fix it and make their product better. I think this is how it should work. Sad fact is the ads creators and influencers get the ice creams.
       

      mubhaur

      Member
      Nov 8, 2015
      1,460
      58
      Karachi, Pakistan
        It's good you share that info with FX. Question is if they plan to do anything about it. I guess you also let them know about oring stiction issue.

        In some domains companies pay the users if they discover any issue/flaw in the product so that they can fix it and make their product better. I think this is how it should work. Sad fact is the ads creators and influencers get the ice creams.

        I normally share the issues and modifications with Frederick. 

        I don't expect reward. Neither I ask if fx will fix or improve in new models.

        It's enough for me that Frederick often gives me a thums up on WhatsApp. 

        Bhaur
         
        I watched your video on this matter today. It is very clear and helpful. I hope others here join me in subscribing to your channel on youtube. By doing so perhaps we can help you keep producing these videos. We all benefit from the generous spirit of great minds in this hobby. Thanks, and happy tinkering.
         
        View attachment 212598

        Hello Friends,

        Today I explored another thing new to me about impact M3.

        Infact a few days ago I had to test some parts that I have sent to some friends in US. Regulator pistons made of peek were also included in the tested and dispatched parts.

        For testing, I installed the new peek pistons in my M3 regulators.

        To cut the long story short, I have been facing leakage issue from the 1st reg breathing hole of my Impact M3 after completion of above mentioned testing.

        I replaced all the O rings of the regulator many times and also replaced the piston but of no use.

        After investigating for "TWO DAYS" I found that there is an internal O ring in part D97. O ring size is 4 × 1.5 mm 70 shore.

        This O ring has not been shown in the part diagram provided by FX on their website.

        It is tricky to uninstall this O ring and even more tricky to install a new one.

        I thought I should help save the time and effort of all those who will ultimately face the failure of this O ring and there is no clue of this O ring in the diagram.

        This is installed in the stainless Steel part in a groove just like a bigger O ring of 90 shore is installed in the regulator body of 2nd reg.

        I hope this will help and save time and effort of users.

        Regards,

        Umair Bhaur
         
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        mubhaur

        Member
        Nov 8, 2015
        1,460
        58
        Karachi, Pakistan
          They do show this oring on a few YouTube videos. I have replaced mine as well and my first regulator is still leaking. So I am going to delete it with a unit from k&l. Thanks for sharing, because a lot of people don’t know about that oring.
          I understand that if properly done it should not leak.
           

          mubhaur

          Member
          Nov 8, 2015
          1,460
          58
          Karachi, Pakistan
            Thank you for the information , I read all of your posts but do not have anything beneficial to contribute so I do not comment. Could you explain the term you are using when describing the O ring as a 70 (Shore) the measurements of 4 X 1.5 MM is clear what does the word Shore reference?.
            70 shore is the measurement of hardness of O ring. It is also called durometer.
            4 x1.5 mm means that internal dia of O ring is 4mm and cross section is 1.5mm.

            I hope it helps.

            Bhaur
             
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