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  1. #51

  2. #52
    Possible Solutions:
    1) Make your arrow and stock pcm disappear. Replace the OEM.
    2) Warranty your car through reputable 3rd party after stock warranty expires.

  3. #53
    Enthusiast
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    Nov 2013
    Location
    Chandler, AZ
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    2,463
    Quote Originally Posted by Lemur View Post
    I read in another thread that there was a manufacturing issue with the bearings, am i mistaken?
    I think that you are mistaken. At least I do not remember any discussion of bearings being the root cause. The preponderance of posts on engine failures are about what was the root cause that resulted in the destruction of the bearing surfaces.

    Quote Originally Posted by ViperGeorge View Post
    I believe the general issue has been shown to be debris in the engine block which was not completely removed by the block manufacturer. Debris gets to the bear causing it to spin in the journal. If the engine isn't shut off quickly this can rapidly lead to rod failure and that is catastrophic.
    As I have said previously, I have read credible references to at least 3 possible root causes for the spun bearings. Low oil level in the sump due to unknown root cause. Metal shavings clogging oil passages, attributed to be left over from the block machining process. Casting sand from the new block manufacturer's casting process. (This one I am not sure of since people keep saying "debris" and attributing it to the block manufacturer; but, the term, debris is not specific.)
    These are just my take aways from the myriad of posts that I have read.

  4. #54
    Enthusiast
    Join Date
    Oct 2013
    Location
    Greenwood Village, CO
    Posts
    3,797
    Quote Originally Posted by AZTVR View Post
    I think that you are mistaken. At least I do not remember any discussion of bearings being the root cause. The preponderance of posts on engine failures are about what was the root cause that resulted in the destruction of the bearing surfaces.



    As I have said previously, I have read credible references to at least 3 possible root causes for the spun bearings. Low oil level in the sump due to unknown root cause. Metal shavings clogging oil passages, attributed to be left over from the block machining process. Casting sand from the new block manufacturer's casting process. (This one I am not sure of since people keep saying "debris" and attributing it to the block manufacturer; but, the term, debris is not specific.)
    These are just my take aways from the myriad of posts that I have read.
    Yes, debris is a general term but still relates to the manufacture of the block or its incomplete cleaning. Sand would be from incomplete cleaning but I've also heard that certain boring operations have left behind metal bits that were not cleaned. Kind of like when you drill metal and get those metal curly cues which sometime stick in the hole.


 
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