my poor engine - Page 2
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This is a discussion on my poor engine within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; That is detonation. Broke the ringland and excavated out a hole probably. If you don't fix the setup for the ...

  1. #16
    Admiral Ackbar the 1st mycologist's Avatar
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    That is detonation. Broke the ringland and excavated out a hole probably. If you don't fix the setup for the correct AFR & timing it will happen again. Look how clean the top of the piston is that didn't fail - totally lean. Look at the scuffing in the two corners on the bore. The bad one has oil burned onto it from the blowby.

    Engine Basics: Detonation and Pre-Ignition
    Last edited by mycologist; 02-22-2010 at 06:08 PM.
    "From a little spark may burst a mighty flame." - Dante
    "The stitch is lost unless the thread is knotted." - Italian proverb

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  3. #17
    Registered User eddywrx's Avatar
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    hav put sti pistons in
    this is subaru country wher on a quiet day u can hear the mitsi's rusting

  4. #18
    Admiral Ackbar the 1st mycologist's Avatar
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    Quote Originally Posted by eddywrx View Post
    hav put sti pistons in
    NOT GONNA HELP - read the link.
    "From a little spark may burst a mighty flame." - Dante
    "The stitch is lost unless the thread is knotted." - Italian proverb

  5. #19
    Registered User eddywrx's Avatar
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    also have replaced coil packs as were stuffed
    this is subaru country wher on a quiet day u can hear the mitsi's rusting

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