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Header Leaks?!

This is a discussion on Header Leaks?! within the External Engine forums, part of the LSx Technical Help Section category; Never really understood why header have leaks or how to fix it? Can anyone educate me or give me tips ...

  1. #1
    Junior Member HottNixLS1's Avatar
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    Met. Blue w/gold Flakes
    1998 Camaro Ultra-Z

    Header Leaks?!

    Never really understood why header have leaks or how to fix it? Can anyone educate me or give me tips on how to get rid of the annoying sound i have? Thank you.

  2. #2
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    Artic White
    99 SS

    Have you tried tightening the header bolts? That may work, if it doesn't you have blown out the gaskets and will have to replace them. Goodluck

  3. #3
    Senior Member Redphoenix1998's Avatar
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    1998 Pontiac Trans Am

    I used to have that issue with my pacesetters but solved them with copper header gaskets and breslin locking header bolts. Easier than the stage 8 bolts. But take out your old gaskets and any dark burned areas are blow outs where you had a leak. Don't reused your gaskets even if it is steel because it will never seal the same again

  4. #4
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    Rally Red
    2000 Camaro Z28

    because the bolts will expand and contract due to heating and cooling down. it takes a few cycles for them to seat. just retorque them down.

  5. #5
    Junior Member HottNixLS1's Avatar
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    Met. Blue w/gold Flakes
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    so its a simple precedure with my exhaust guy i go to...thanks guys

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    Member Jon7I2's Avatar
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    Navy Blue Metallic
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    Just out of curiousity what kind of sound does it make, when it leaks at the main header gasket? I am wondering because i just installed some dynatech Lt's an the gaskets they supplied looked good. However, i am currently experiencing a sort of clicking sound that is driving me crazy. Any ideas from any of you guys as to the cause/ solution?

  7. #7
    Member NHRAMAN's Avatar
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    Navy Blue Metallic
    '99 T/A WS6 M6

    Exclamation

    Quote Originally Posted by Jon7I2 View Post
    Just out of curiousity what kind of sound does it make, when it leaks at the main header gasket? I am wondering because i just installed some dynatech Lt's an the gaskets they supplied looked good. However, i am currently experiencing a sort of clicking sound that is driving me crazy. Any ideas from any of you guys as to the cause/ solution?
    hope u didn't use paper gaskets...and ticking is a leak.

  8. #8
    The Immortal Wulfe13's Avatar
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    Cayenne Red Metallic
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    Get some Percy's aluminum crush gaskets, they're reusable and guranteed not to leak.

  9. #9
    Member NHRAMAN's Avatar
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    Navy Blue Metallic
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    Cool

    Quote Originally Posted by Wulfe13 View Post
    Get some Percy's aluminum crush gaskets, they're reusable and guranteed not to leak.
    I used Percy's Carbon Gaskets and all is well after 3500 miles.
    99 WS6 M6 NBM !Cags,!Cats,Vinci/Crane,Hurst,Detroit TruTrac,3:73,31 Splne,Edel.Race LT's,ORY,QTEC,Flow,ARP,Percy,MSD,SLP,AC/DELCO,Bosch,GMPP,Cntrfrce DF,Htchkiss,Susp.Tech,Lakewood,285's,Bilstein,Pro-kit,SLP,RK Sprt,A/Meter,Red Optima,Magnaflow S/S Tips,Hd Pins,Tint,Fire.Ex,[*4 Hot Rod Power Tours*]

  10. #10
    Member Jon7I2's Avatar
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    see the gaskets supplied w/ the kit were good. I mean they were def. better than stock, so i dont understand how they could be leaking.

  11. #11
    Junior Member zach_ws6's Avatar
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    the paper ones pacesetter sends with their headers suck. you are better off to reuse the GM ones, assuming they are still in good shape. also, is your guys' ticking coming from under the hood or at the collector of the header?

  12. #12
    Life in the Fast lane sunsetorangess's Avatar
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    I used the stock gm type metal gaskets for my setup and so far so good. Not too call you stupid or anything but is it a leak or just a diff sound your not use too. The sound made at the collectors could also sound like a leak but in all reality it isnt.
    Had the same thoughts a while back but all was good.
    J
    2001 SS, Its not the car its the Driver that matters....

  13. #13
    Senior Member Redphoenix1998's Avatar
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    If you don't properly torque the header bolts down initially or retorque them after a heating and cooling cycle, the header bolts will be loos enough for small exhaust blowby. Once that happens, it gets bigger and bigger and the gasket is then blown and can't be reused. Like I stated above, if you want to avoid this problem and the torquing and re torquing, then use a set of locking header bolts or the new ARP header studs. You'll never have a problem

  14. #14
    Member Jon7I2's Avatar
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    Navy Blue Metallic
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    Is it bad for your car, to dirve when this clicking is present? In other words, is a header leak bad to drive on?

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