OMG! ConeDodger's Engine Case, is now ventilated |
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OMG! ConeDodger's Engine Case, is now ventilated |
McMark |
Apr 18 2009, 09:00 AM
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#1
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
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Rob just called me. Engine let go this morning in Stockton, on the way to the autocross. (IMG:style_emoticons/default/sad.gif) Sounds like a piston skirt broke off and trapped itself between the crank and case, and then blew its way out. Now he's got to wait for a tow truck. Ooooooh man. Poor Rob. I'm sure he'll have some pictures (with garbage cans) when he get's it back to his place. (IMG:style_emoticons/default/hissyfit.gif) (IMG:style_emoticons/default/barf.gif) |
Jake Raby |
Jul 15 2009, 09:57 PM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
That particular piston is in the cylinder that ALWAYS runs a higher EGT with the Tangerine header that was used.. That one cylinder might have had all the planets aligned for the failure, or that one piston was a tad weaker..
Some detonation is inaudible and there are instances where shit happens without any noise associated... Mechanical things and failures don't have to make sense.. When I break shit the goal is to have it so destroyed that the pieces are too small to even identify... Anyone who hasn't built an engine and have it explode simply hasn't built enough engines... Its part of our lives.. One of my Customers who is a Pediatric Cardio Thoracic Surgeon sent me the following when he broke his engine at a DE after it made 40HP more than we expected it to.. "It really is hell being at the mercy of OEM parts - in your case its PCNA, but I gotta tell you, I deal with OEM parts from a source that many/most people believe to be unimpeachable. Even God gets it wrong 2% of the time." How much more real can it get? |
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