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308 Water Expansion Tank

Discussion in 'Technical Q&A' started by enjoythemusic, Jan 24, 2006.

  1. enjoythemusic

    enjoythemusic F1 World Champ

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    #1 enjoythemusic, Jan 24, 2006
    Last edited by a moderator: Sep 7, 2017
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  3. don_xvi

    don_xvi F1 Rookie

    Nov 1, 2003
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    I never located anything off the shelf that came close to the volume of the stock unit on my 78. I don't recall what it was anymore.
     
  4. enjoythemusic

    enjoythemusic F1 World Champ

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    Note sure what stock on the 308QV is, but this unit is 1.25 quarts and that seems ?good? enough. Anyone? Anyone?
     
  5. mike

    mike Formula Junior

    Nov 2, 2003
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    Is there any interest in a stainless steel expansion tank? I am just testing the water here...any comments..
    It would be for 308 I & 328.
     
  6. spiderseeker

    spiderseeker Formula 3

    Jul 22, 2005
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    I just had mine fixed a few weeks ago, seems like a very common problem. Stainless might be a good solution.
    Steve
     
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  8. enjoythemusic

    enjoythemusic F1 World Champ

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    Sure if it is a direct replacement at reasonable cost. MANY OF US are suffering pin holes and the like from the stock unit. If you build it, we will come :)
     
  9. Steve King

    Steve King F1 Rookie

    Feb 15, 2001
    4,366
    NY
    Try an early model (63-67) Corvette aluminum tank. Just about same volume size tank but a little rounder. Need to make a bracket. Look in Hemmings for places that sell them. Enjoy the ride
     
  10. NYCFERRARIS

    NYCFERRARIS Formula Junior

    Mar 2, 2004
    999
    where do you get them repaired?
     
  11. spiderseeker

    spiderseeker Formula 3

    Jul 22, 2005
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    NYCFERRARIS; A radiator shop can fix it. Just had mine repaired for a pinhole leak- he cleaned it in a chemical bath to remove the rust, then reinforced the entire area and pressure tested for about 18-20 psi , then repainted it black.- $50. Done the next day.
    Steve
     
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  13. NYCFERRARIS

    NYCFERRARIS Formula Junior

    Mar 2, 2004
    999
    Will try a local rad shop ... my DIY epoxy patch really does not work well
     
  14. enjoythemusic

    enjoythemusic F1 World Champ

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    Tried JB Weld and it worked for a bit, but other holes appear. Agree, time for a rad shop visit.
     
  15. Jdubbya

    Jdubbya Two Time F1 World Champ
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  16. JTranfield

    JTranfield Formula Junior

    Dec 29, 2003
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    I think yes if it looks original.
     
  17. mike

    mike Formula Junior

    Nov 2, 2003
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    It seems like there is a market & I'm going to explore it.
    First order of business is see about mechanical drawings, then a fabricator shop. I will keep everyone posted.
    Again My main focus will be the 308 I & 328...as I believe they are both the same configuration with the exception of the AAV mount under the 308qv & 328..

    Correct me if I'm wrong.
     
  18. enjoythemusic

    enjoythemusic F1 World Champ

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    there is a market :)
     
  19. don_xvi

    don_xvi F1 Rookie

    Nov 1, 2003
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    Well I know for certain the 308 has 3 variants. Non-emissions carb, emissions carb and the injected cars have one or more, no idea there. So be sure to clarify which one you're offering; Superformance wasn't aware of the emissions carb variant, so the one they sell for 308 carb is actually only for the non-emissions models.
     
  20. mike

    mike Formula Junior

    Nov 2, 2003
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    Thanks Don..

    I am exploring The "308 I & 328"../ basically the 308 Injected 2v/308 qv/ and 328.

    these all appear to me to be the same w/ the exception of the AAV mount for the qv & 328. Again if I understand it correctly
     
  21. DKHudson

    DKHudson Formula Junior

    Sep 1, 2004
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    David Hudson
    #18 DKHudson, Jan 31, 2006
    Last edited by a moderator: Sep 7, 2017
    I had the same problem with pin holes in the tank... I had already had the tank repaired once, so bit the bullet last year and had one made, in polished aluminium, to pattern.

    If you are interested,try:
    sales@Promotasport.wanadoo.co.uk

    contact name: Pete

    Promotasport are based in the UK, although the tank is so light it wouldn't cost much to ship. They made a nice job of it. The tank wasn't a direct copy, due to the welded seams, but it fits directly and gives the right impression.

    NOTES: my car is a carburettor engine, so check your header tank isn't different.
    I do have engineering drawings for the tank, but they are .TIFF format and will not upload. Promotasport will doubtless have copies.


    I hope this is helpful.


    David
    Image Unavailable, Please Login
     
  22. sp308qv

    sp308qv Karting

    Nov 20, 2003
    101
    South Jersey
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    Steve Ponzetto
    Put me down for one too! There's a guy on ebay selling aluminum ones, But there pretty pricey
     

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