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) |
ConeDodger |
Jul 15 2009, 07:31 PM
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#2
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Apex killer! Group: Members Posts: 23,613 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California |
We found the culprit.
Jake saw the pictures and knew right away that the engine had failed due to the number one piston exploding. The build was flawless and the engine had a textbook break-in and was performing great for more than a couple thousand miles. Nothing should have gone wrong. Jake said as soon as he saw the pile of piston parts that detonation was the cause. Everything else in the motor can be salvaged except the pistons and rods. The cam is not something you use again unless you live in a false economy... But what caused the detonation? The tune seemed perfect. The gauge numbers were fine. Hold the phone I think we found the culprit... Yesterday I was working in the yard. Some of you have been here to the Conedodger Farm and seen the couple of acres I do battle with. I have a bunch of lawn equipment I use to keep the wilderness beaten back. I used a hand pump to drain the tank of fuel after the engine let go. Put it all into a 5 gallon race can. I have been dumping it into the lawn equipment and put most of it into the 4Runner. Yopu is so gentle on the 4Runner she didn't notice anything at all. Thank God I wasn't driving it with that fuel load because I spank 5 liter Mustangs regularly with that Supercharger! My tractor will not even run on this gas. My chipper started and ran for 2 minutes ingesting and spitting out two 1" branches before doing exactly the same thing the 2270 did. Sudden puff of white smoke followed by louder running and oil smell. Blew a hole in the side of it's little block. Needless to say, I have drained the gas out of all the lawn equipment. Verdict: Detonation secondary to California pump gas. So you guys who love to tank on Jake can settle down. This was not his fault... A new engine case has been sent to Jake (thanks Dan Thompson). Rods are tweaked enough so they will go to Jake's trophy case (he loves breaking shit). The crank can probably be salvaged as there is only cosmetic damage on visual inspection. A set of 70K mile cylinders were sent to Jake. The only visual damage to the heads was in the number 1 CC and Len can make that right I suspect. We should be back on the track as soon as Jake can get away from that watercooled crap that pays the bills at Aircooled Heaven... Attached thumbnail(s) |
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