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Acert bellows/expansion joints

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Oscar the KW, Nov 5, 2013.

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  1. Nov 5, 2013 #1
    Oscar the KW

    Oscar the KW Going Tarpless

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    Anyone else having trouble with these things cracking? The outer most one on mine will not last more than one month, it is aligned, and neither myself or Cat can figure out why this keeps happening. I am starting to wonder if it because I have a tuned ECM, the boost comes on so fast that I think these rinky dink things cannot handle it.

    I am thinking that maybe a piece of a cac boot from maybe a C13 would be the ticket, but not sure if they would hold up that close to a turbo. Any thoughts?
     
    Oscar the KW, Nov 5, 2013
    Oscar the KW, Nov 5, 2013
    #1
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  3. Nov 7, 2013 #2
    bstromback2002

    bstromback2002 Light Load Member

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    No but I'm having a heck of a time getting the one from the high pressure turbo to the precooler to seal up the use what looks like a exhaust donut. You have any problems with that one and if so advice on getting it to seal??? Are you tightening the to clamps down on the expansion joint / bellows before tightening the clamp at the high pressure turbo???
     
    bstromback2002, Nov 7, 2013
    bstromback2002, Nov 7, 2013
    #2
  4. Nov 8, 2013 #3
    Oscar the KW

    Oscar the KW Going Tarpless

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    I have not had any trouble with the one going to the pre-cooler. I get everything lined up and tighten the clamp on the horn, then tighten the two clamps for the expansion joint. Cat replaced the one that is on here now, and it only made it three weeks before it cracked. I am going to try and find a rubber boot like what is on the CAC piping,(maybe something from a C-13 that is smaller in diameter) and see if that will hold up to the heat so close to the turbos.
     
    Oscar the KW, Nov 8, 2013
    Oscar the KW, Nov 8, 2013
    #3
  5. Nov 10, 2013 #4
    bubbanbrenda

    bubbanbrenda Road Train Member

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    Oscar I have an audible (under load) leak on the compression side that has me pulling out what is left of my hair. I am getting ready to replace the radiator and CAC, it needs a radiator for sure, but everyone that tests my CAC says its "within spec". I am assuming the CAC is original (everything else has been, 1,080,000 miles).
    Anyway, is this the one you are talking about?
    View attachment 57334
    If it is, I don't think a boot will take the heat without some kind of heat shield.
    I can't see any cracks in mine, but that doesn't mean it's not.
    View attachment 57335
    The reason I ask is mine is not even close to being straight, just kinda looks like it would leak. I know I need to replace the upper clamp, someone over tightened it and the little loops on the "T" bolt are spread way out and just barely hanging on. When I replace the clamp I'm going to try and straighten it out a little. Any other ideas where to look?
     
    bubbanbrenda, Nov 10, 2013
    bubbanbrenda, Nov 10, 2013
    #4
  7. Nov 10, 2013 #5
    Markvfl

    Markvfl Road Train Member

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    I never had any problems with a PDI tune that created over 60 pounds of boost and stock manifold. Is your manifold stock?
     
    Markvfl, Nov 10, 2013
    Markvfl, Nov 10, 2013
    #5
  8. Nov 10, 2013 #6
    Oscar the KW

    Oscar the KW Going Tarpless

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    Yes, stock manifold.

    Bubba, your pictures are not working.
     
    Oscar the KW, Nov 10, 2013
    Oscar the KW, Nov 10, 2013
    #6
  9. Nov 10, 2013 #7
    bubbanbrenda

    bubbanbrenda Road Train Member

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    Cat expansion joint 2.jpg Cat expansion joint 1.jpg try that
     
    bubbanbrenda, Nov 10, 2013
    bubbanbrenda, Nov 10, 2013
    #7
  10. Nov 10, 2013 #8
    bstromback2002

    bstromback2002 Light Load Member

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    Mine looks the same as that also bubba and it still has the factory yellow paint on it and it don't leek. I wouldn't try to straighten it you might do more harm than good.
     
    bstromback2002, Nov 10, 2013
    bstromback2002, Nov 10, 2013
    #8
  11. Nov 10, 2013 #9
    bstromback2002

    bstromback2002 Light Load Member

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    Also there is another bellow behind that that goes from the top turbo straight down to the per cooler is it leaking back there??
     
    bstromback2002, Nov 10, 2013
    bstromback2002, Nov 10, 2013
    #9
  12. Nov 10, 2013 #10
    Oscar the KW

    Oscar the KW Going Tarpless

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    Yep, that's the one I am having trouble with. I can't believe that yours is not cracked, it is severely out of alignment. Are you sure that it is not leaking on the backside?
     
    Oscar the KW, Nov 10, 2013
    Oscar the KW, Nov 10, 2013
    #10
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