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Exhaust header problem

Discussion in '365 GT4 2+2/400/412' started by OB1CNOB, Mar 1, 2008.

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  1. OB1CNOB

    OB1CNOB Rookie

    Nov 8, 2007
    14
    Cincinnati, Ohio
    Full Name:
    Joel
    #1 OB1CNOB, Mar 1, 2008
    There is a small hole in one of the headers on the passenger side (LHD '84 400i #53079). Has anybody had any luck trying to repair small holes? There are a set of headers for sale on eBay for an '80 400i, Ferrari part nos. are 105598, 105599, 105600, and 105601, are they the same as the '84?
    I am not opposed to replacing the originals with a set of stainless headers if someone has a good source. I checked out the Quicksilvers product referenced in an earlier thread, a distributor here in Ohio wants $3000.00 for the set.
    The remainder of the exhaust is fairly new. The car sounds great as long as you're standing on the driver's side.

    http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=200202814385&ssPageName=ADME:X:AAQ:MOTORS:1123

    P.S. I have been reading the TRX thread, replaced the tires on the 400i, and just my luck, I need another set for an '87 BMW M6.
     
  2. brettski

    brettski Formula 3

    Feb 29, 2004
    1,754
    north of toronto
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    brett swaykoski
    #2 brettski, Mar 1, 2008
    i can't imagine why any good welder would have any trouble fixing your problem one way or another. i had good experiences patching mine up a few times before i was ready to bite the bullet and get them all done right. that included making jigs and bending new pipes. we reused the flanges.
     
  3. 400iGuy

    400iGuy Formula 3
    Owner Rossa Subscribed

    Aug 26, 2004
    1,080
    Central Florida
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    Al
    #3 400iGuy, Mar 1, 2008
    when you made the new ones, what tubing did you use. They look like pretty small diameter?

    Al
     
  4. brettski

    brettski Formula 3

    Feb 29, 2004
    1,754
    north of toronto
    Full Name:
    brett swaykoski
    #4 brettski, Mar 4, 2008
    sorry for the delay Al, i honestly don't remember. it was '02, before i had the shop, and this was one repair that was done with virtually no personal involvement. this Polish guy was really, really good though. a real craftsman. he cut out all the junk and they fit like a glove when they came back.
     
  5. laperriere

    laperriere Karting

    Mar 10, 2006
    162
    Montreal
    #5 laperriere, Mar 4, 2008
     
  6. moserpe

    moserpe Karting

    Jul 20, 2006
    137
    Switzerland
    Full Name:
    Peter Moser
    #6 moserpe, Mar 8, 2008
    Last edited by a moderator: Sep 7, 2017
    I recently had my headers aluminium coated, mainly for cosmetic reasons. After the sand-blasting, they found some small holes, which I had welded before the coating. When I went to pick-up the headers from the shop and carefully checked the work, I found one remaining small hole again. Rather than blasting and welding again, it was closed by plasma-spraying just a thicker layer of aluminium.

    Peter
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  7. OB1CNOB

    OB1CNOB Rookie

    Nov 8, 2007
    14
    Cincinnati, Ohio
    Full Name:
    Joel
    #7 OB1CNOB, Mar 8, 2008
    Those look great, more subtle than stainless steel.
     

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