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Exhaust Manifold Bolt Broke

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  • Exhaust Manifold Bolt Broke

    Like the title says one of my exhaust manifold bolts broke. The one on the drivers side closest to the firewall is the broken one. Now my question is how do I remove it?

    I think I read somewhere that if I go with headers I won't have to use that bolt. Is this true?

  • #2
    So you broke the head off the bolt I'm assuming? and the bolt is still in the head? you could try drilling a hole in the bolt and using one of those "easy out" tools for bolts.

    And who ever told you that you would not re-use all the exhaust manifold bolt holes was WRONG. haha.
    2000 Trans Am l 1967 Firebird

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    • #3
      i had the same problem with my 94 camaro. What i ended up doing was pulling my head of and take it to my machine shop buddy. Is the bolt flush with the head or is it sticking out a little cause if it sticking out you could weld a nut on it and turn it out that way.

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      • #4
        ah fun i got lucky when i did headers mine came out easy for 130k miles lol

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        • #5
          How close to the head is it broke? Can you get vise grips on it? If so heat up the bolt and clamp down on it with the vise grips and move it back and fourth all the way out,if you cant get to it you will have to remove the head as mentioned before.
          Last edited by Rubidon; June 20th, 2009, 10:35 PM.

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          • #6
            Originally posted by Lucky SOB View Post
            So you broke the head off the bolt I'm assuming? and the bolt is still in the head? you could try drilling a hole in the bolt and using one of those "easy out" tools for bolts.
            Easy outs...baaad...

            They like to break - and they're hardened steel, so you really can't drill anything out.

            Just try drilling it out - I'd recommend taking it off and having a machine shop do it, though.
            Gone but not forgotten: 1986 Chevrolet Camaro IROC-Z

            "You shall ride eternal. Shiny and chrome."

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            • #7
              i didnt b's break bolt off in his head too i thought larry used an easy out
              The Original




              Originally posted by 81DaytonaPaceCar


              Can you argue that it's "revolutionary"? Perhaps. Just because it's "new" and "different" doesn't mean it's the greatest thing since sliced bread.

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              • #8
                Originally posted by bigjon88 View Post
                i didnt b's break bolt off in his head too i thought larry used an easy out
                but it was out of the car, 10thousand times easier, a drill in a 4th gen is Like no word can describe how bad of a design the engine bays are.

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                • #9
                  well if he took the head off.......
                  The Original




                  Originally posted by 81DaytonaPaceCar


                  Can you argue that it's "revolutionary"? Perhaps. Just because it's "new" and "different" doesn't mean it's the greatest thing since sliced bread.

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                  • #10
                    3 of the bolts broke off even or into the head. I soaked them with PB, then drilled out 2 of the 3 and used an easy out. the 3rd one the easy out broke and I had to have a machine shop drill it out.
                    sigpic
                    1998 Trans Am Convertible A4 - WS6 hood, WS6 air lid, WS6 rims, drilled/slotted rotors.

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                    • #11
                      your right about headers, the heads have 2 holes at the ends, headers use the holes closest to the exhaust port. So maybe you got lucky.
                      sigpic
                      1998 Trans Am Convertible A4 - WS6 hood, WS6 air lid, WS6 rims, drilled/slotted rotors.

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                      • #12
                        That blows bro. Are there any threads left. Try getting a nut with some thread locker let is cure and try to take it off. It seemed to work on the two head bolts that got stuck on mine... Speaking of when I get back I need to tighten my header bolts.

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                        • #13
                          Originally posted by freakshow View Post
                          I think I read somewhere that if I go with headers I won't have to use that bolt. Is this true?
                          Originally posted by Lucky SOB View Post
                          And who ever told you that you would not re-use all the exhaust manifold bolt holes was WRONG. haha.
                          No, actually at least on the LT1 headers that I had we did not use the outside bolt hole, we used the inside hole that was right along the ports. So, if you got headers that had the same bolt styel that mine has... then yeah, you don't even need to worry about it.
                          - Brian Meissen
                          Owner, MiFBody.com
                          Administrator, LTxTech.com


                          1994 Camaro LT1 Transplant - 357ci LT1, cammed, stalled, and driven.
                          2022 Camaro LT1 - "Cherry Bomb 2"
                          Michigan FBody Meet & Greet Car Show 2022
                          June 4th, 2022 - 9am to 3pm!!!
                          The HUB Stadium, Auburn Hills, MI

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                          • #14
                            interesting...when we did the headers on kolin's 93 lt1, we used all the holes.
                            2000 Trans Am l 1967 Firebird

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                            • #15
                              Must be dependant on the different brands. My LPP used the inside bolt holes.
                              - Brian Meissen
                              Owner, MiFBody.com
                              Administrator, LTxTech.com


                              1994 Camaro LT1 Transplant - 357ci LT1, cammed, stalled, and driven.
                              2022 Camaro LT1 - "Cherry Bomb 2"
                              Michigan FBody Meet & Greet Car Show 2022
                              June 4th, 2022 - 9am to 3pm!!!
                              The HUB Stadium, Auburn Hills, MI

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