Heat exchanger insulation?

Discussion in 'Resto Corner' started by mr happy, Jun 22, 2018.

  1. mr happy

    mr happy Active Member

    Messages:
    123
    Location:
    Brisbane
    Guys, was mr unhappy about the potential asbestos hazard in my exchangers so i dunked them underwater and split the cases by using a flapper wheel along the folds, removed and double bagged the contents and now i need to install an alternative, any ideas of what would be a good material to use?
    Still need to degrease, blast, repair and then mig the seams but will update with progress,
    Few pics below for your entertainment,
    Mr h
    IMG_58854.jpg IMG_2824.jpg IMG_2825.jpg IMG_2826.jpg IMG_2827.jpg IMG_2828.jpg
     
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  2. Barry

    Barry Well-Known Member

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  3. rstucke

    rstucke Well-Known Member

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    Wamberal NSW AUS
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  4. mr happy

    mr happy Active Member

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    123
    Location:
    Brisbane
  5. mr happy

    mr happy Active Member

    Messages:
    123
    Location:
    Brisbane
    Also people, if you can see in the pictures above there is a thick aluminium foil that keeps the insulation seperate from the exhaust fins so i will need to source some new stuff, maybe from one of the automotive shops?
    Mr h
     
  6. mr happy

    mr happy Active Member

    Messages:
    123
    Location:
    Brisbane
    Ok kids,
    Ordered some 0.35 embossing aluminium from a craft place online to place in the exchangers but thought i'd post a few pics of my welding progress. Basically i'm a total welding newbie but bought a decent mig setup so i'm not fighting poor equipment as well as being useless. Have been learning as i go along so go gentle, last photo or so its starting to come together a bit more but still lots of practice needed. Had to knock back the first efforts with a flapper disk and whilst functional they do look pretty horrendous. Spose its not the end of the world as it is only the exchangers. Think the material is only 0.95mm and havent blown many holes so thats something! Will post a few more pics when insulation goes in an i get these babies back together,
    Mr h
    IMG_2850.jpg IMG_2852.jpg IMG_2856.jpg IMG_2857.jpg IMG_2853.jpg
     
  7. David H

    David H Well-Known Member

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    2,910
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    newcastle
    Not too ugly mr happy & good on you for having a go. Nice learning welding on bits one doesn't see:p. Hides the learning curve sins:oops:;). Good work & keep us posted. Coat of heat paint will hide some sins;) but your end product gets a pass from me.
    Cheers
     
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  8. mr happy

    mr happy Active Member

    Messages:
    123
    Location:
    Brisbane
    A little squirt of high temp exhaust repair paste wiped across my dodgy welds does wonders
    Mr h
     
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  9. chris taylor

    chris taylor Well-Known Member

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    1,389
    Location:
    adelaide sth aust
    Nothing wrong with that welding ,so long as it is strong is all that matters, in an non heat situation you can always tidy it up with body filler, as i do , then it looks good .
     
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  10. cbus

    cbus Well-Known Member

    Messages:
    10,665
    Location:
    sunshine coast
    Doing well. :cool:
    A lot better than many who think they are genius's.
    Agree with the Al insulation over anything fiberous as well.
     
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  11. mr happy

    mr happy Active Member

    Messages:
    123
    Location:
    Brisbane
    Guys,
    I digress a little here but jeez they don't make mufflers like they used to, thought i'd clean mine up and its built like a tank, not tinny like your modern exhausts, looks like this is only 15 yrs old but under that slight surface rust is a solid beast,
    Mr h
    1141966E-BD25-4148-972A-ECA67693F9E4.jpeg 6B511A0D-3024-4766-A66B-3CBF4FFFEBDA.jpeg
     
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  12. Wayne murray

    Wayne murray Well-Known Member

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    1,569
    Location:
    Seven hills
    Looks like (sound like) it's going back on.:) They don't make things like they use to,if it's sound and solid it must still be good .If it is ratty light and tinnier. It probably wasn't build to last long .
     
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  13. chris taylor

    chris taylor Well-Known Member

    Messages:
    1,389
    Location:
    adelaide sth aust
    Hi wayne ,regards to mr happy exhaust are not these boxes made of stainless steel . mine has been on since i bought the van 27 years ago.
     
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  14. David H

    David H Well-Known Member

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    2,910
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    newcastle
    My original muffler still there & good 42 years later:D.
    Cheering
     
  15. Grantus

    Grantus Well-Known Member

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    13,990
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    Southern ACT
    Mufflers on the owners, wear out way quicker than the one on the buses..........:p
     
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  16. Wayne murray

    Wayne murray Well-Known Member

    Messages:
    1,569
    Location:
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    I don't think there made the exhausts from stainless steel. It will depend on how there are driven as well,o_O if they are driven on short runs the condensation doesn't have time to heat up enough to dissipate the moisture.:eek: Causing it to rust,:(Where long runs it would,my x2 cents worth.:D
     
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  17. mr happy

    mr happy Active Member

    Messages:
    123
    Location:
    Brisbane
    1 exchanger finished and back on the engine, came up fairly good,
    Mr h
    IMG_2867.jpg IMG_2869.jpg IMG_1343.JPG IMG_2875.jpg IMG_2878.jpg
     
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