Thread: Exhaust manifold bolts - Oops

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  1. #1 Exhaust manifold bolts - Oops 
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    So this is my first time removing the manifold bolts, and installing headers. Stupid me assumed that all of the studs/bolts were going to be the same size, but now that I'm prepping for installing the new headers, I see there are different sizes. I'm putting a link to the picture of the bolts that I have, and need some help identifying which ones go where.

    I have 2 studs still in the block in the front, and 1 in the back. So that makes 11 that I'm guessing will hold the new headers on, but that makes me one short. There's 1 stud/bolt that has a different nut than all of the rest, but appears to be the same length. Then two extra long ones that I'm also unsure of where they go.


    IMG_0345.jpg - Google Drive


    Any help is appreciated.
    2005 GTP - Headers, 3" DP, resonator, and catback, CAI, 605 plugs *Sold*
    2016 WRX Premium - Stage 2 E30
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  2. #2 Re: Exhaust manifold bolts - Oops 
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    ZZP supplied two "A" bolts, but that was it.
    2005 GTP - Headers, 3" DP, resonator, and catback, CAI, 605 plugs *Sold*
    2016 WRX Premium - Stage 2 E30
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  3. #3 Re: Exhaust manifold bolts - Oops 
    Donating Users bandook's Avatar
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    From memory there was one that was different because it held a bracket. I don't think it matters where you put them. Just make sure all are installed and torqued down good.
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29°, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  4. #4 Re: Exhaust manifold bolts - Oops 
    Killa Bee Scottydoggs's Avatar
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    this stud with nut on it, then another nut holding the dip stick is about the only bolt that matters.


    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  5. #5 Re: Exhaust manifold bolts - Oops 
    Killa Bee Scottydoggs's Avatar
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    one more for fun.


    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  6. #6 Re: Exhaust manifold bolts - Oops 
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    Well, I got everything put back back together. Flushed the coolant, and refilled, and now it looks like there's a leak where the head bolt that I took out and replaced was.

    Bolt need tighten more? Or head gasket issue now? When I put the bolt back in, I torqued it like they mentioned in a post. I think 90 ft lbs and then 120*. But when I did that, it sure felt like I could've tightened it more.

    Once the car cools down I will see if I can tighten it more, and go from there.
    2005 GTP - Headers, 3" DP, resonator, and catback, CAI, 605 plugs *Sold*
    2016 WRX Premium - Stage 2 E30
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  7. #7 Re: Exhaust manifold bolts - Oops 
    GXP Level Member GTPpower's Avatar
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    Did you apply sealer to the bolt? Did you chase the threads to clean them in the block?
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  8. #8 Re: Exhaust manifold bolts - Oops 
    Killa Bee Scottydoggs's Avatar
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    exhaust leak or coolant leak?

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  9. #9 Re: Exhaust manifold bolts - Oops 
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    Yes on the sealer. No on the cleaning of threads.

    And Scotty that's a good question. It appears to be water, and not green. And it does only happen when the car is running.
    2005 GTP - Headers, 3" DP, resonator, and catback, CAI, 605 plugs *Sold*
    2016 WRX Premium - Stage 2 E30
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  10. #10 Re: Exhaust manifold bolts - Oops 
    Donating Users bandook's Avatar
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    Are you talking about a head bolt? Wtf? sounds like u reused the stock bolt and it's about to snap.
    Top Swapped 01 Imp
    VS (very small?) cam, SD Headers, 2.8" pulley, 29°, ported everything, E85, AEM water/meth, Deka 60's, HPT tuned
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  11. #11 Re: Exhaust manifold bolts - Oops 
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    I bought new head bolts, but only replaced the one that I took out with a new one. The water appeared to be coming coming from the manifold but I tightened everything up more, and it appears to be good now. We’ll see.
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  12. #12 Re: Exhaust manifold bolts - Oops 
    Killa Bee Scottydoggs's Avatar
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    maybe one of the heater hoses spit some coolant or water out? find it hard for coolant to come out the head, the rest of the bolts are tight.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  13. #13 Re: Exhaust manifold bolts - Oops 
    Turbo is the way to go. BillBoost37's Avatar
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    If you are leaking clear water ... well that's likely from your AC. Reason being is unless you put in straight water instead of coolant....then you don't have any water to leak.

    On the bolts... the two longest ones held the cross over to the rear manifold, the two with bolt heads held the lifting brackets on and like Scott said.... the only other thing that matters is the oil dipstick being held in place.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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  14. #14 Re: Exhaust manifold bolts - Oops 
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    I did flush the coolant system once i was done with the exhaust stuff, so there would be quite a bit of water in the system. And I'm pretty sure the water was coming from the headers. Once I tightened the bolts of the headers to the heads, it went away.

    And I disagree with the important bolts. At least for the 04+, the transmission tube is bolted in down low below the headers. And with the headers there, you could not get that tube fastened down using the original hole. I had to use a flat bracket to hold it in place. And if that tube isn't in there, you lose like 3-4 quarts of transmission fluid. So that bolt is pretty important.
    2005 GTP - Headers, 3" DP, resonator, and catback, CAI, 605 plugs *Sold*
    2016 WRX Premium - Stage 2 E30
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