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ab0z posted:I know this guy IRL, he's this funny all the time. I don't get the pun...
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Nov 23, 2009 03:53
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Adiabatic posted:I don't get the pun... What did I tell you folks? What did I tell you. He'll be here all weekend.
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Nov 23, 2009 04:14
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Adiabatic posted:I don't get the pun... Indy Racing League. Come on, don't let us all pass you by!
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Nov 23, 2009 04:19
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This thread is under so much pressure it feels like it is going to begin combustion at any second. Glow plugs.
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Nov 23, 2009 06:31
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thArf posted:This thread is under so much pressure it feels like it is going to begin combustion at any second. Not really, your timing is off.
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Nov 23, 2009 08:46
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Haven't we exhausted all these puns? This thread is supposed to be about mechanical failures, but all i'm seeing is a bunch of interference.
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Nov 23, 2009 09:41
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Yeah I'm starting to miss the point.
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Nov 23, 2009 10:09
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I think it's time to condense these puns.
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Nov 23, 2009 10:12
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Are you trying to reverse-flow the trend?
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Nov 23, 2009 10:17
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Don't crumble under the back-pressure
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Nov 23, 2009 10:26
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PurpleFender posted:I remember flooring contractor guys sending their underlings to my store with their F150s. The would take maybe one pallet max of tiles to bottom out. it was a trip watching the truck slowly. bottom. out. then watch the sidewalls start to flatten. Just one load of tile would do it. My dad once loaded 950 pounds of shingles behind the rear axle line in a Cutlass Ciera station wagon, which rolls on dinky 185/75-14 tires. The car is rated to carry 1199 pounds (higher than most crew car half-tons, hah) but that weight is generally meant to be spread evenly and not in the rearmost 15% of the car. I have no idea how he made it 15 miles.
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Nov 23, 2009 11:16
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Psylocibe posted:Guy takes a piston to the chest. Link is down, does anyone have another? I'm curious.
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Nov 23, 2009 11:37
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Shauntron posted:Link is down, does anyone have another? I'm curious. Then for sure your timing is off but the video was mildly explosive. I shall summarize - 2 drag bikes at the line, left lane guy on bike has piston explode out the bike and something whack him in the chest - what looks like the piston rolling away could actually be his hand as the color matches his glove which was on the handle bar and in the general vicinity of said projectile. extreme_accordion fucked around with this message at 19:18 on Nov 23, 2009 |
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Nov 23, 2009 18:33
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In the event of an explosion (unless it's catastrophic to the point of a bomb), wouldn't the piston be forced down? Also, to me that looks like his glove (not hand or piston) with the way it hits the ground. Either way, loving cool / scary.
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Nov 23, 2009 22:20
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If the explosion was in another cylinder, that piston might be forced down but another could be forced up. Don't give me crap for talking about an explosion inside a combustion cylinder, I know.
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Nov 23, 2009 22:25
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Godholio posted:If the explosion was in another cylinder, that piston might be forced down but another could be forced up. Another far-fetched alternative is that the piston's connecting rod failed in such a fashion as to allow the piston to be forcefully ejected into and through the head by the force imparted on it from the rotating mass of the crankshaft/other pistons. Maybe.
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Nov 24, 2009 00:53
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KelvereseAysen posted:Another far-fetched alternative is that the piston's connecting rod failed in such a fashion as to allow the piston to be forcefully ejected into and through the head by the force imparted on it from the rotating mass of the crankshaft/other pistons. Maybe. I can't figure out how the piston (or whatever) seems to just...materialize in midair. There's a bang and then something appears to shoot out of the side of the gas tank, but there's no leaking gas or visible damage to the bike. It almost seems like it's just some random piece of the intake manifold or something that cracked off when the engine backfired/exploded.
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Nov 24, 2009 01:06
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Here's another aviation related one. Happened here back in 1992. Back in the day C130's used to have regular mag plugs in all the gearboxes and accessory sections, and you had to pull each one after every flight to check for chips. Now they have a system that turns on a light in the cockpit if you get any metal on the plugs. The gearbox on this engine had an internal issue that the crew wasn't alerted to. This airplane did not have this system, so it continued to fail until this happened.  The prop and front half of the gearbox punched through the side of the plane while it was at altitude causing a rapid depressurization. Everything went white immediately afterwards due to the drop in pressure. One of the passengers now needs a hearing aid because of the pressure loss. The prop also severed one of the hydraulic lines for the landing gear. There was another case back in the 70's where a C130 and P3 collided off of Midway island. Both planes landed safely. The P3 was missing a big chunk of outer wing and the C130 had a gash from nose to tail through the belly. They attached chains to the interior of the plane to hold it together, some sort of  stitches and flew it back to the states for repairs.  C130's are loving strong machines.
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Nov 24, 2009 01:34
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N183CS posted:C130's are loving strong machines. 
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Nov 24, 2009 02:51
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PurpleFender posted:I remember flooring contractor guys sending their underlings to my store with their F150s. The would take maybe one pallet max of tiles to bottom out. it was a trip watching the truck slowly. bottom. out. then watch the sidewalls start to flatten. Just one load of tile would do it. The 2500 is also a heavier duty truck than an F150, with a higher rated payload. Apples to oranges comparison. Sorry for the derail, I now return you to your regularly scheduled thread. Lovin the pics in this thread guys, I've seen some strange failures before but unfortunately don't have any pics to post. herman391 fucked around with this message at 04:59 on Nov 24, 2009 |
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Nov 24, 2009 04:41
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Airplane failures make this thread. As grim as it is, I think crash investigations use some of the best science and engineering and minds. Noncrashed plane failures are cool to look at too because they are so epic.
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Nov 24, 2009 09:19
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orange lime posted:I can't figure out how the piston (or whatever) seems to just...materialize in midair. There's a bang and then something appears to shoot out of the side of the gas tank, but there's no leaking gas or visible damage to the bike. It almost seems like it's just some random piece of the intake manifold or something that cracked off when the engine backfired/exploded. Bingo. Some sort of backfire through the intakes because it was running nitrous (can't remember the specifics) that blew the airbox out and the tank off.
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Nov 24, 2009 12:20
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semi-related, for those of you that love photos like this, check this book out: http://www.amazon.com/Shot-Hell-Stories-Ravaged-Warbirds/dp/0760316090/ref=sr_1_1?ie=UTF8&s=books&qid=1259062604&sr=1-1 lots of fun to flip through. the poo poo that B17s could survive is amazing.
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Nov 24, 2009 12:39
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2ndclasscitizen posted:Bingo. Some sort of backfire through the intakes because it was running nitrous (can't remember the specifics) that blew the airbox out and the tank off. I remember this one from way back. It didn't blow his hand off and it wasn't a piston. It was a vapor explosion (fuel or nitrous, can't remember) and what you see is his glove exiting stage left. There is an interview with him floating around on the net after the explosion and he continued to race the rest of the day.
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Nov 24, 2009 15:28
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N183CS posted:I love how a crew member thoughtfully installed the before flight item on that engine nacelle. Preventing FOD damage is important, even when there's no loving engine or gearbox there.
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Nov 24, 2009 16:35
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ab0z posted:What company is offering those subframes? Can I order one? Is there a detailed writeup that you know of so I don't have to hassle you for details? This is what a finished AWD rear bolt-in subframe looks like for a FWD Escort/Protege/323. It's about 25lbs lighter than the normal AWD Protege setup and a fuckton stronger. Mind you, the spare tire well would have to be cut out, fuel filler line re-routed, etc - totally worth it though to have Toyota diffs out front and back (far more durable than anything Mazda makes involving driveline)   
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Nov 24, 2009 17:35
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2ndclasscitizen posted:Bingo. Some sort of backfire through the intakes because it was running nitrous (can't remember the specifics) that blew the airbox out and the tank off. Nitrous pooling, maybe. If you're running a wet kit and hit the juice at low RPMs, the engine can't process the intake charge, which means that raw fuel/nitrous pools up in your intake runners, which results in a nice kaboom https://www.youtube.com/watch?v=2Twb4I8_-OU
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Nov 24, 2009 17:42
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Mr. Wiggles posted:We finished in like 100th out of 160 something. So meh. I can't wait for the aftermath pics start trickling down from the Lemons thread
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Nov 24, 2009 18:05
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Sockington posted:This is what a finished AWD rear bolt-in subframe looks like for a FWD Escort/Protege/323. It's about 25lbs lighter than the normal AWD Protege setup and a fuckton stronger. Mind you, the spare tire well would have to be cut out, fuel filler line re-routed, etc - totally worth it though to have Toyota diffs out front and back (far more durable than anything Mazda makes involving driveline) That's a really pretty job.
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Nov 24, 2009 18:29
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meltie posted:That's a really pretty job. yeah, but then they bolt that horrible looking diff on there  If you're going to spend fat wads of cash, at least do it right.
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Nov 24, 2009 20:41
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Frank Dillinger posted:yeah, but then they bolt that horrible looking diff on there Relax, it's just a test fit. The next step is probably bead blast and paint the diff, and powdercoat the subframe.
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Nov 24, 2009 21:35
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Fucknag posted:Unless they're used for firefighting duty. I used to work with the widow of one of those guys.
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Nov 24, 2009 21:58
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 Now I feel bad.
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Nov 25, 2009 00:42
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Fucknag posted:
Don't. I think if that didn't happen, he would have rigged it to happen.
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Nov 25, 2009 01:27
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orange lime posted:I can't figure out how the piston (or whatever) seems to just...materialize in midair. There's a bang and then something appears to shoot out of the side of the gas tank, but there's no leaking gas or visible damage to the bike. It almost seems like it's just some random piece of the intake manifold or something that cracked off when the engine backfired/exploded. A lot of those drag bikes don't have the tank in the traditional location, it's just a giant composite airbox. Those things get thirsty running at 12k+ RPM.
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Nov 25, 2009 01:36
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InterceptorV8 posted:Don't. Well, if I'm not being an insensitive prick... I'm cool again! Drinks are on me!
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Nov 25, 2009 06:33
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General_Failure posted:Heads and pistons from my collection. The thing to note on the bottom head is the shim sitting on it. See the hole burnt throught it? Yeah. Did that in less than an hour, on more than one cylinder. Due to the domed piston pictured next to it. What kind of crazy motor is that? Boxer 4?
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Nov 25, 2009 16:28
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BabyJesus posted:What kind of crazy motor is that? Boxer 4? It's a sad day when people don't recognise a VW aircooled motor.
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Nov 25, 2009 16:42
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Very sad, indeed. The castings on the outside of the head looked "old", something you wouldn't see in a newer model car, but I haven't ever seen an aircooled VW engine before 
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Nov 25, 2009 16:45
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Type 4 VW? If you ever own an ACVW, you get to look at the motor. A lot 
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