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Exhaust manifold crack

Discussion in '1st Gen. Tacomas (1995-2004)' started by Wreckless_71, Aug 13, 2011.

  1. Aug 13, 2011 at 2:27 PM
    #1
    Wreckless_71

    Wreckless_71 [OP] WRECKLESS for Life...

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    Justin
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    3" Lift via OME 881's, Bilstein 5100's, Dakar OME 3" leaf packs, MBRP custom exhaust, HID headlights, CB, Canopy, aluminum wheels, upgraded sound system, full set of studded snow tires and wheels, auxilary lighting, more to come.
    Alright guys and gals here's the deal. I just finished a full tune up on my 2.7L and found that the exhaust manifold is cracked... AGAIN!!! This will be the second time I've replaced it since I bought the truck two years ago. Put probably 60k miles on it since I replaced the last one. I've pretty much come to the conclusion that there is a casting defect. Both cracked right down the center between the 2nd and 3rd exhaust port. Is anyone else having this problem? And if so have you found a fix? Or are you just replacing it with a header?
     
  2. Aug 13, 2011 at 2:39 PM
    #2
    trd7

    trd7 4wd tacoma

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    Tyler
    Columbia, SC
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    AEM air intake
    I have the same crack but have yet to replace mine
     
  3. Aug 13, 2011 at 3:16 PM
    #3
    Gorillazrus

    Gorillazrus To be continued...

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  4. Aug 13, 2011 at 4:06 PM
    #4
    Wreckless_71

    Wreckless_71 [OP] WRECKLESS for Life...

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    It really isn't a big deal to change it. It's just a pain in the ass if i'm gonna have to replace it every two years. I HATE exhaust leaks.
     
  5. Aug 14, 2011 at 10:08 AM
    #5
    boatswain

    boatswain Well-Known Member

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    the "95" tacoma I just got rid of had a crack in the manifold. I didn't even know it,but my neighbor that bought it pointed it out. he still paid what I was asking . I gave him a pretty good deal. he's happy with it.
     
  6. Aug 14, 2011 at 3:21 PM
    #6
    MowTaco

    MowTaco Well-Known Member

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    Sounds like a great excuse to get a header to me...
     
  7. Aug 14, 2011 at 5:05 PM
    #7
    Wreckless_71

    Wreckless_71 [OP] WRECKLESS for Life...

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    I got the manifold replaced on warranty. So I can't complain there. It's just a PITA to be changing it a lot. I'm gonna look into a header, any suggestions. I would prefer a long tube if anyone has any good things to say?
     
  8. Aug 15, 2011 at 6:17 AM
    #8
    skytower

    skytower Well-Known Member

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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    You can always braze the crack. It's stronger than a weld.
     
  9. Aug 16, 2011 at 8:39 AM
    #9
    killzone90

    killzone90 Well-Known Member

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    Ethan
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    mine is crcked but i still havnt replaced it
     
  10. Aug 16, 2011 at 8:51 AM
    #10
    medic2230

    medic2230 Ditch Doctor

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    Not a matter of if....just a matter of when. :) Replaced mine a 5 yrs ago was cracked for about a year or two before I did it.
     
  11. Aug 19, 2011 at 9:05 PM
    #11
    misterdmac

    misterdmac Well-Known Member

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    I replaced it on my 1997 about 6 months ago. From what I understand unless you replace your motor mounts, it's basically going to crack again. My old one was cracked in several places, more or less in all the way around. I can't find the effing photo right now. If your replacement comes with new studs, it is WAY less terrible a job. If mine cracks again I will break down and pay someone to weld it. I know it's not a huge deal since it's post cylinder but it just bothers me.

    Or why not give this a try? http://www.yotatech.com/f37/tacoma-4runner-2-7l-mini-header-kit-now-available-179930/

    Believe the OEM part is something like $169 (not at the dealership) so divide the number of years you expect your truck to last by 2, multiply that by 169, and if that comes to more than $325, easy choice.
     
  12. Aug 20, 2011 at 8:03 PM
    #12
    Aquatic Tacoma

    Aquatic Tacoma Well-Known Member

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    Stock - built correct from the start.
    Virtually all our 2.7 ltr 4x4, Tacoma company trucks have/had cracked manifolds. The trucks are run hard, pulling 2500lb trailer loads all day. We welded the manifolds up and they last a short time. We eventually change to a header. They work much longer though they eventually blow out the lower gasket. Much easier to replace. My header has been on for about 60,000 miles and I just replaced the gasket recently.
     
  13. Jan 5, 2012 at 4:07 PM
    #13
    misterdmac

    misterdmac Well-Known Member

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    In or around the truck
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    Just finished installing my mini header from this kit today: http://www.tacomaworld.com/out.php?...er-2-7l-mini-header-kit-now-available-179930/

    Will update again if I notice any performance change. Super easy install as it's way lighter and less bulky than the OE manifolds. However you will need to mad your heat shield if you want to keep using it, the mounting system is totally different. Easy enough with a drill and some tin snips.

    IMG_20120105_125317.jpg
     
  14. Jan 5, 2012 at 7:33 PM
    #14
    TacoMX

    TacoMX TW's Official anti body-lift pundit

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    I replaced my cracked 2.7L mani with an LCE header..

    Love it :cool:
     
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