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Disassembled Motor - Piston Carnage Pics

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Old Sep 2, 2023 | 10:09 AM
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Default Disassembled Motor - Piston Carnage Pics

So I think you guys were right, I think something third party entered the engine. The piston rings look to be completely intact.






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Old Sep 2, 2023 | 05:21 PM
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This topic is a follow on from Dizings2Ks
Inline Pro Engine #3 - It's actually over this time. - S2KI Honda S2000 Forums

Time to hunt for the offending part ? may find it in the exhaust / cat somewhere, it is worth a looking !! IAT sensor ok ? inlet butterfly screw ?
Sorry to see m8

Last edited by noodels; Sep 3, 2023 at 02:09 AM.
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Old Sep 2, 2023 | 07:14 PM
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Question. OEM ECU?
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Old Sep 3, 2023 | 05:16 AM
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Oem ecu, flashed with Hondata flashpro (it’s an 06)
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Old Sep 3, 2023 | 05:17 AM
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Originally Posted by noodels
This topic is a follow on from Dizings2Ks
Inline Pro Engine #3 - It's actually over this time. - S2KI Honda S2000 Forums

Time to hunt for the offending part ? may find it in the exhaust / cat somewhere, it is worth a looking !! IAT sensor ok ? inlet butterfly screw ?
Sorry to see m8
yep, the hunt will start. I’m hoping something inside the supercharger or aftercooler isn’t falling apart. The spark plugs are fully intact. Ugh.
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Old Sep 4, 2023 | 04:27 AM
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Damn that's sad! Sorry to see this bud
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Old Sep 4, 2023 | 01:42 PM
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So I had a bit of time this afternoon to inspect. I’m pretty convinced it was the piston ring that fell apart.

I have a video endoscope camera and looked through the supercharger, aftercooler, the intake and nothing. No signs of anything letting loose. Not to mention the fact that if anything had let loose upstream of the aftercooler, it would have had to break through the internal cooling fins to get to the TB. Every fin inside that aftercooler is in perfect unbent shape, which means whatever happened was from the TB into the cylinder.

All bolts and such are accounted for, everything is in place in the TB and intake. No signs of anything weird, metal chunking, etc. all looks good.

Upon further inspection of the piston, on the opposite side of the piston from all the damage the top ring is broken in 3 pieces. Also the end of the ring looks like it had a piece broken off of it/the end doesn’t look “clean” as if it’s the finished edge.




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Old Sep 4, 2023 | 03:13 PM
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Agree with you, so bad quality rings? not gapped correctly ? or a badly built engine, Again...
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Old Sep 4, 2023 | 10:58 PM
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Originally Posted by noodels
Agree with you, so bad quality rings? not gapped correctly ? or a badly built engine, Again...
All good questions. I'm also curious about the brand, size of the rings and gap
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Old Sep 5, 2023 | 07:58 AM
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Originally Posted by RolanTHUNDER
All good questions. I'm also curious about the brand, size of the rings and gap
I would assume they are CP rings since they are CP pistons... but I'm not positive of that.

I'm dropping off the cylinder head/short block to Jeremy Allen for a rebuild next week. We'll be discussing options and I'm hoping for a bit of diagnosis from him on what possibly happened.

I'll update this thread as we progress.
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