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  1. #1
    There is no VooDoo like BadVooDoo NeVerMind's Avatar
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    Black soot question

    I am getting a black sooty material comming from what looks like my heads (2 and 3).

    I just went down to 2 layers on my head gasket but I sprayed the gaskets with copper coating to help sealing. Everything was torques to spec using Riva specs. (and loctite)

    Is it possible that my SS bolts are streching? Should I retorque and see if that fixes the issue?

    Other than the soot, it seems to be running pretty damn good.

    Thanks.


  2. #2
    big83bronco's Avatar
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    im having the same exact problem. I think it may be aluminum shavings from my loose exhaust bolts rubbing, then the aluminum dust mixes withwater and creates a black sootie powder. Just a thought.

    Tim

  3. #3
    mtrager's Avatar
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    Nevermind,

    Soot equals leak. Still will run good.

    Two layers ? Did you have three ?

  4. #4
    There is no VooDoo like BadVooDoo NeVerMind's Avatar
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    All GPR gaskets (I think) are 3 layers. I pulled the middle to increase compression.

    I don't think it's an exhaust leak because the soot is NOWHERE near a place for the exhaust to leak.

    I am going to re-torque and see where that gets me.

    It is running pretty darn good.

  5. #5
    mtrager's Avatar
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    Yours has three layers and the 03s and up have two layers.

    Try the re torque.

    Worst case you need a new gasket.

  6. #6
    Moderator RX951's Avatar
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    I would retorque......

    and yes, stainless head bolts can/will stretch. becareful.

    I went back to OEM on my head bolts.

  7. #7
    Hydrotoys's Avatar
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    Nevermind. You are talking the head gasket, head and possibly top of cylinder on very small black sooty areas?

    If so, that is a hot spot, possibly deto. I know. I've got a couple, and it will eventually eat away at the aluminum on TOP of the cylinder. That will require a trip to the welder and the mill if left unchecked. What's worse, is once this area is uncovered, the combustion gets inside there, and continues to eat away.
    Does it look like this black spot on top to the right?

  8. #8
    There is no VooDoo like BadVooDoo NeVerMind's Avatar
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    Quote Originally Posted by hydrotoys
    Nevermind. You are talking the head gasket, head and possibly top of cylinder on very small black sooty areas?
    No (at least not yet) I am getting an oily soot (like the soot that comes out of the exhaust) on the #2 and #3 head and exhaust. It happened before when 2 of my head bolts came loose on the #1 head (I have since fixed)

    Quote Originally Posted by hydrotoys
    If so, that is a hot spot, possibly deto.
    I have no cat, stock timing, use 93 octane, run in 75 degree water and have a free flow... What else would cause deto?

    Quote Originally Posted by hydrotoys
    Does it look like this black spot on top to the right?
    It didn't look like that the first time I had teh problem, but I will tear down and check.

    I think I am going to re-torque, clean, and see what that does... If it's still an issue, I'll tear down. The weird thing is, I am getting no compression leakage.

    Thanks.

  9. #9
    Hydrotoys's Avatar
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    We are probably talking about 2 different things then.

  10. #10
    mtrager's Avatar
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    Looks, like they run lots of fuel on their pistons in the north west.

    I like that

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