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Technical
Scored piston
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<blockquote data-quote="Trikky2" data-source="post: 574658" data-attributes="member: 240"><p>Lack of lubrication by fuel wash can cause scoring and pick up but looking at your photo it looks like overheating rather than fuel wash. Note the hole and the way the piston appears to crush the rings. Sign of detonation.</p><p></p><p>If your engine were pouring fuel into the cylinders enough to cause the damage shown, your mpg would have been below 10, your oil would reek of petrol and the oil level would be way too high (and would hence also have leaked severely).</p><p></p><p>The piston and rings look like they were running completely dry.</p></blockquote><p></p>
[QUOTE="Trikky2, post: 574658, member: 240"] Lack of lubrication by fuel wash can cause scoring and pick up but looking at your photo it looks like overheating rather than fuel wash. Note the hole and the way the piston appears to crush the rings. Sign of detonation. If your engine were pouring fuel into the cylinders enough to cause the damage shown, your mpg would have been below 10, your oil would reek of petrol and the oil level would be way too high (and would hence also have leaked severely). The piston and rings look like they were running completely dry. [/QUOTE]
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Scored piston
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