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Fuel leak on injector rail (with pic) S70

posted by  richnell on  Sun Jul 12 13:57 CST 2009
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last visit: Sun Mar 28 14:19 CST 2010
[RELATED]

Greetings
I got a fuel leak coming from... well... I don't know what it is called... hence the post and need to fix it.
I first noticed a strong smell of gas, and noticed this fuel leak




What is that thing called and how does it come off?








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    Fuel leak on injector rail (with pic) S70

    posted by  KlausC on  Sun Jul 12 15:26 CST 2009
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    last visit: Fri Oct 24 10:15 CST 2014
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    Looks a lot like a fuel pressure pulse dampner:

    http://www.ipdusa.com/version.asp?strPageHistory=category&numSearchStartRecord=0&strParents=128,366&P_ID=5052&CAT_ID=366&V_ID=13773

    You need to remove the 2 10mm aluminum bolts that hold the injector rail down. Loosen the fuel line at the top of the engine. Then carefully pull the injectors out, 1 by one. I used a 17mm box wrench to help pry them out. Do not pull them out using the fuel rail!! And don't drop the reusable injector seals behind the intake manifold, you will never see them again :)

    Once the injectors are out, turn the fuel rail over and you will see small nuts holding the injectors to the rail and the pulse dampner. The dampner has an O ring that probably failed. Very unusual for this to happen.

    Klaus
    --
    Common sense trumps a PhD








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      Fuel leak on injector rail (with pic) S70

      posted by  richnell on  Fri Jul 17 07:25 CST 2009
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      last visit: Sun Mar 28 14:19 CST 2010
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      Got it out and it isn't leaking anymore! Thanks Klaus
      Here is a picture of the old one I pulled out... there is a definate gap inside the damper that is not present on the new one... which I'll deduce was the source of my woes.
      Cheers!







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        Fuel leak on injector rail (with pic) S70

        posted by  jadnhm on  Fri Jul 17 07:39 CST 2009
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        last visit: Tue May 22 18:03 CST 2012
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        Is this a pic of the old one or the new one? A pic of both would make it easier to see what you mean.

        --
        1998 V70 AWD Turbo 195k+








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          Fuel leak on injector rail (with pic) S70

          posted by  KlausC on  Fri Jul 17 07:55 CST 2009
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          last visit: Fri Oct 24 10:15 CST 2014
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          Greedy today are we? The new one can be seen on FCP Groton. The important thing is that it no longer leaks!
          Good find, those leaks are very difficult to deduce. Most people would assume an injector leak.

          Klaus
          --
          The more I learn, the more I forget. So why learn?








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            Fuel leak on injector rail (with pic) S70

            posted by  jadnhm on  Fri Jul 17 07:56 CST 2009
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            last visit: Tue May 22 18:03 CST 2012
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            haha I guess maybe a little greedy. I was just looking to have a comparison in case I (or anyone else) ever run in to the same problem... I can look on FCP myself though :)
            --
            1998 V70 AWD Turbo 195k+







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