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epoxy instead of welding aluminum ung to aluminum pipe

Posted by newtodsm97gst, Sep 14, 2013

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  1. newtodsm97gst

    newtodsm97gst Proven Member

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    can i use epoxy instead of welding a aluminum bung to aluminum pipe?
    i need to finish my sd setup and getting it welded will cost me $75-$100 too much for just the bung. can epoxy handle it? would it work?
     
  2. spoonman

    spoonman Supporting VIP

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    More than likely it won't stick. Or be leak free.


    That's a crazy amount! If you were close I would do it for $20 at the most.
     
  3. newtodsm97gst

    newtodsm97gst Proven Member

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    epoxy said will work on aluminum. so your saying it will not work? i wish your close by that would be awesome.
     
  4. Archer Fabrications

    Archer Fabrications Supporting Vendor

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    Me too... Howeer there was a dude where i used to live that charged 80$ per hour with a 1 hr minimum...
     

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    2006 Evo 9 MR
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  5. Colt4G63 also

    Colt4G63 also Proven Member

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    It's not that bad of a price. I would do it for $73, but I usually just weld a bunch of material onto the pipe, then drill it and tap with the appropriate tap. I think Epoxy would break off sooner or later. The job would easily take an hour to complete, especially including pressure testing the job for leaks afterward.
     

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    1990 Dodge Colt
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  6. MJcanada

    MJcanada Proven Member

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    You could ship it to me and weld it and send it back to you cheaper than 80$.
     

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    1995 Mitsubishi Eclipse GST
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  7. Archer Fabrications

    Archer Fabrications Supporting Vendor

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    If it's a VRSF pipe they are actually a bi*** to weld LOL... Cheap chineese aluminum WITH anodizing
     

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  8. newtodsm97gst

    newtodsm97gst Proven Member

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    I would love to, but i made a hole already on the tb elbow, and need the car running by today. But i dont have 80-100 $ to spend. So no on the epoxy? Have anybody tried or any other alternative to do this? Thanks

    It is vrsf indeed.. Lol
     
  9. TSicktalon

    TSicktalon Proven Member

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    Go buy a thread-in tire valve and modify it to work. They have rubber gaskets and have a nut on them to get good and tight. I used to run one on my SRT4 for a boost reference and 1 with a schraeder valve in it to do BLT's. They work great for like $3.
     

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    1998 Mitsubishi Eclipse Spyder GST
    12.569 @ 120.550 · 2G DSM
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  10. newtodsm97gst

    newtodsm97gst Proven Member

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    Not a bad idea i'll see if i can find any of those tire threaded valve.
     
  11. lasthope05

    lasthope05 Proven Member

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    If you going to use epoxy might as well give it the best chance possible and aluminum solder/blaze it. You can buy the rods at harborfreight under the name alumiweld. It's in the welding sections and works amazing well for small non structural projects like adding bungs and making small brackets.
     
  12. newtodsm97gst

    newtodsm97gst Proven Member

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    Thanks for a good idea, i will do that. But for now i'll stick with epoxy, need the car running asap, and i'll do that next week.
     
  13. Archer Fabrications

    Archer Fabrications Supporting Vendor

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    It's not a good idea that sh** is sh**... AND... Itll look like sh**
     

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  14. newtodsm97gst

    newtodsm97gst Proven Member

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    I see, i'll get it welded when i can get the $ for welding the aluminum, but for now i'll give the epoxy a try. Would the epoxy comes off easily?
    And i'll give the tire valve a try if i can find one.
     
  15. Archer Fabrications

    Archer Fabrications Supporting Vendor

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    Tire stem won't fit an IAT sensor. Weld it up. As for the glue. Use a flap pad on an angle grinder after you snap off the bung itll clean it up with little damage. Use the finest flap pad you can find.


    Are you going to be using JB weld?
     

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  16. newtodsm97gst

    newtodsm97gst Proven Member

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    Yes jb weld.
     
  17. Twinturbo120

    Twinturbo120 Supporting VIP

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    Just try it out dude, as long as it works, it works. Although I'm a do it once type of dude, but from what I read your low on mula.
     

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  18. TSicktalon

    TSicktalon Proven Member

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    Remove the valve stem pin, drill out the inside of the housing. As long as you aren't using some gigantor IAT, it'll work swell.

    Any autoparts store should have them. They're with the tire repair stuff.

    IMO, its easier and easier to clean up than any epoxy would be.
     

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    1998 Mitsubishi Eclipse Spyder GST
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  19. turbojo

    turbojo Proven Member

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    I didn't use a bong on Mine I just drilled and tapped the aluminum intercooler piping for the iat
     
  20. Greedy Pimp

    Greedy Pimp Proven Member

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    Do not use epoxy or jb weld, u really think it would hold up to the heat and pressure. Just weight and get it welded, try calling an exhaust shop and they should do it for cheaper or even like mitas or a place that works on vehicles. If you go ahead and an try it which i do not recamend I would not go under boost at all and if you use jb weld I think it needs 24hr to set fully.
     

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  21. ricktb

    ricktb Proven Member

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    can you drill and tap a fitting into the cast intake manifold for speed density? or just take it to a machine shop they'll probably weld a bung on for less than $50
     

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  22. Fubar231

    Fubar231 Probationary Member

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    I actually did this once a long time ago with my MK3 supra, i cant remember what i used (Might of been JB Weld) but i cut a hole in some exhaust tubing, used the BOV flange and JB Welded/Epoxy'd it to the IC piping. It worked and held boost up to 14psi and never blew off or leaked (That i knew of) but i only had it on my car for maybe 30 minutes to an hour as when it dumped to atmosphere my car would stall out.

    Just get it welded though, its not worth the risk and wondering whats going to happen.
     
  23. LeedBoost

    LeedBoost Probationary Member

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    just tap the pipe and screw it into the pipe with an o-ring.
     
  24. newtodsm97gst

    newtodsm97gst Proven Member

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    This is what i did and put red rtv around the outer piping.
     
  25. miliman13

    miliman13 Proven Member

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    [ame=http://youtu.be/hHvrE1Cd5Eg]Soldering aluminum using Harbor Freight aluminim welding rod #44810 - YouTube[/ame]

    Like most of us, you or your buddy's have a 20 $ torch laying around, the rods are cheap, i bought mine at Home Depot, even though Im an avid lover of Harbor Freight.
    Give it a try, there are plenty of videos on YouTube on how to DIY weld with aluminum .

    Note, before any "Debi downers" rain on my option, just find him a better alternative.
     

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