Announcement

Collapse
No announcement yet.

Precat to Y-Pipe Exhaust Leak

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Precat to Y-Pipe Exhaust Leak

    I have an exhaust leak under heavy acceleration (but nice and quiet the rest of the time), and I believe it is at the front precat to y-pipe connection. I want to get replacement gaskets for those two joints. Is the first one below the right gasket to get? I have a feeling all 3 below do the same thing, but I'm not sure.
    2k SVTC - Black / Praire Tan, blu_fuz ported 3.0L, 66k motor, 126k chassis

    http://www.contour.org/ceg-vb/attach...chmentid=16333

  • #2
    Mine never had any gaskets there.
    2000 3.0 Roush Cougar
    2013 Focus ST
    2002 MINI Cooper S
    2008 Mustang Bullitt # 5389

    Comment


    • #3
      So that connection should be metal on metal? I cranked the bolts down with a 1/2" breaker bar, made no difference.


      What is the typical location for an exhaust leak on these cars? The flex pipe connections look good, can the flex pipe itself develop a leak?
      2k SVTC - Black / Praire Tan, blu_fuz ported 3.0L, 66k motor, 126k chassis

      http://www.contour.org/ceg-vb/attach...chmentid=16333

      Comment


      • #4
        Originally posted by ScotSHO View Post
        The flex pipe connections look good, can the flex pipe itself develop a leak?
        Oh, yeah. That's the first place I would suspect. That, or the gasket between the flex and the Y. The flex has gaskets on both sides of it.

        Both manifolds connect to the Y with kind of a bubble flare, no gaskets used.
        2000 3.0 Roush Cougar
        2013 Focus ST
        2002 MINI Cooper S
        2008 Mustang Bullitt # 5389

        Comment


        • #5
          Ok, good to know. I'm trying to figure out a good way to isolate the problem, but it only happens under load. I'll take another look at the y-pipe.
          2k SVTC - Black / Praire Tan, blu_fuz ported 3.0L, 66k motor, 126k chassis

          http://www.contour.org/ceg-vb/attach...chmentid=16333

          Comment


          • #6
            Seafoam it. If there's a leak itll show

            Comment

            Working...
            X