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Thread: water coming out of head between header and head ???

  1. #1
    Junior Member JOURNEYMAN
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    water coming out of head between header and head ???

    please help we have brand new motor and we got it fired up and we have water coming out between header and head on # 4 and 6 cylinder what is causing this we took it apart had everything checked and put back together and same thing happened again ???? what is causing this ty for any help

  2. #2
    Senior Member RACING JUNKIE
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    Re: water coming out of head between header and head ???

    Quote Originally Posted by gpracer
    please help we have brand new motor and we got it fired up and we have water coming out between header and head on # 4 and 6 cylinder what is causing this we took it apart had everything checked and put back together and same thing happened again ???? what is causing this ty for any help
    Deck on the block not straight, not allowing the gasket to seal ?
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  3. #3
    Senior Member RACING JUNKIE THERATTLER's Avatar
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    If the water is coming out between header and head that means it is coming out the exhaust port (right)??if thats the case you have a cracked head, put a pressure tester on your radiator , remove header , and pump up tester to 20 lbs and look in port , assuming this is a v8 engine that would indicate that # 4& 6 are back to back , probally cracked into water jacket from ex ports ,,,,have they been ported out on the ex side??
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  4. #4
    Senior Member RACING JUNKIE curtisreed's Avatar
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    Re: water coming out of head between header and head ???

    Quote Originally Posted by gpracer
    please help we have brand new motor and we got it fired up and we have water coming out between header and head on # 4 and 6 cylinder what is causing this we took it apart had everything checked and put back together and same thing happened again ???? what is causing this ty for any help
    Do you mean under the header between the head and block or from the header flange? Not sure I am getting the picture of where exactly it is coming from. Are you using head studs?

    Curtis

  5. #5
    Senior Member RACING JUNKIE mopar1968's Avatar
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    Check header bolt's, could be leaking around thread's, I know ''MOPAR'' engines can do this, put some sealer on threads, some bolt's/stud's goes into water jacket :!: :!: Just a thought :!: :!:

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  6. #6
    Senior Member RACING JUNKIE
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    your head studs are leaking?

  7. #7
    Senior Member DYNO OPERATOR
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    If the heads have been ported, it's possible they have gotten into a water jacket.

    TS1955

  8. #8
    Senior Member RACING JUNKIE TheYellaBrick's Avatar
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    What make/size is the engine/heads ?
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  9. #9
    Senior Member RACING JUNKIE
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    Quote Originally Posted by mopar1968
    Check header bolt's, could be leaking around thread's, I know ''MOPAR'' engines can do this, put some sealer on threads, some bolt's/stud's goes into water jacket :!: :!: Just a thought
    Hey wasn't that one of Mopars better idea's? J/K 8)

    One day we were working on my buddies 68 roadrunner.
    We were taking the right side header off to gain acess to the starter and whoops, heres comes gycol all over the garage floor- we were both like WTF? :lol:

  10. #10
    Junior Member JOURNEYMAN
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    408 chevy and head checked out good pressure tested it the mating surface on block ?? thanks for all ur help


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