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Thread: Rebuilding 435Be 3” drivers, the o rings stock?

  1. #1
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    Rebuilding 435Be 3” drivers, the o rings stock?

    I’m rebuilding a pair of 435Be drivers. I got a sample of the APG S38N series ferrofluid, cleaned the coil gaps, put the 100 uL of ferro in the gap and ready to put them back together. I have to ask about the silicone o-ring, is it factory? One driver has one and the other doesn’t, which I thought was weird. Name:  1C2F3425-A827-40CC-A635-51D8655028E6.jpg
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    It looks to be a perfect fit inside the chamber. I don’t see it in the cross section of the driver and looking at labeled cross sections I don’t see it there either. If the general thought is that it belongs it may be a bit difficult to find, but I’ll do what I can. Anyone know where I can source the correct part of it’s needed? I do see that the cross section posted it a bit different, but I can’t seem to find it in any of them.

    Dan

  2. #2
    Administrator Mr. Widget's Avatar
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    The crossection pictured is of a 2420 or LE85, not a 435Be. The 2420/LE85 is decades older than the 435Be.

    I believe the orange colored silicone O-ring is correct.


    Widget

  3. #3
    Administrator Robh3606's Avatar
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    Quote Originally Posted by Mr. Widget View Post
    The crossection pictured is of a 2420 or LE85, not a 435Be. The 2420/LE85 is decades older than the 435Be.

    I believe the orange colored silicone O-ring is correct.


    Widget

    it is stock my drivers have them as well

    Rob
    "I could be arguing in my spare time"

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