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Thread: Cylinder 1 Zero Compression!!

  1. #37
    Registered User TozoM8's Avatar
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    I don't think that screw would fit through the inter-cooler. My guess would be it fell into one of the intake tube during some previous work and max boost and hard cornering picked it up. It looks line a very course thread like some used on plastic covers.
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  2. #38
    Registered User marklar182's Avatar
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    Quote Originally Posted by Elevens View Post
    What a disaster. I can't even begin to speculate how that screw was introduced to the Intake system. If it did enter through the Input side of either Turbo Compressor (MAF side) I would have to assume there is major damage to the Turbo itself. Let's hope not. It looks like a Cam Cap Torx screw. But it looks a little short though. Good luck with the Results....................
    No way it went into the intake and through the turbo. It would NEVER get through the intercoolers. (Tozo beat me to it!)

    I am dumbfounded on how it got in there.
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  3. #39
    Registered User kevin's Avatar
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    Looks like an air filter housing screw.

    We had a MB Kompressor towed in a couple years ago with a locked engine (the owner thought is was) turned out to be a screw the went into the supercharger. Replaced it and was good as new.
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  4. #40
    Registered User Elevens's Avatar
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    Quote Originally Posted by TozoM8 View Post
    I don't think that screw would fit through the inter-cooler. My guess would be it fell into one of the intake tube during some previous work and max boost and hard cornering picked it up. It looks line a very course thread like some used on plastic covers.
    Yea! Completely Forgot about the Intercooler. Obviously It was introduced after It. This is a big time Error. And so the Mystery continues........................................
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  5. #41
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    $5100 for a head? Ouch. I'll sell you a whole long block shipped for less than that. In my opinion, I don't think it can be repaired if you want to maintain the same compression. The cleaning up of the stress risers might be an issue.
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  6. #42
    Registered User Bigglezworth's Avatar
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    Ah ha!

    Tell tale sign of some maintenance/modification work being done and a screw went missing. This is 100% mechanic error - simple as that. Thankfully you have a warranty. The information disclosed however, I suspect said warranty company might be looking at previous ownership to ascertain how this might have occured.

    I once dropped a nut down the intake runner of the pro ram manifold on my old Chevelle when I was putting one of the quad carbourators on and had to do a fetch effort. Luckily though, a pro ram is pretty much straight down to the valves and as such a magnetic pick-up tool did the job nicely without having to remove the manifold.

    As for $ for the head, that is nothing short of absurd. A qualified engine machine shop can easily repair the damage as long as the casting itself is not cracked anywhere.

    T.
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  7. #43
    Registered User hahnmgh63's Avatar
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    http://www.ebsracing.com/ Highly recommended for head work. There not cheap but cheaper than that by far.
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  8. #44
    Registered User grizz's Avatar
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    What about the block and piston , the piston must need to be changed as well if the head is that bad.
    The other head will need to be skimmed as well ..

    grizz
    Last edited by grizz; March 29th, 2012 at 20:57.
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  9. #45
    Registered User kevin's Avatar
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    I was wondering about the piston as well... Need to look it over good. The top ring land could have been damaged.
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  10. #46
    Registered User marklar182's Avatar
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    The piston surface is more of a concern. The pitting causes hot spots that leads to premature detonation.
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  11. #47
    Registered User Bigglezworth's Avatar
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    I hate to say it, but I personally would be relieved to find damage to just the head. Pulling a screw out of a cylinder is significantly better than pulling all the pieces of a piston and rod out. Got to enjoy that the hard way on one of my other rides a few years back. lol

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  12. #48
    Registered User Bigglezworth's Avatar
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    Likely cause

    In thinking about this a bit more, I am of the opinion this likely resulted as part of a spark plug change. The screw appears to be one of the fasteners to clamp the air cleaner assembly and could have dropped down through the hole when the coil pack and spark plug were removed.

    Unfortunate regardless.
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