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 Ah Ferrari, at least it isn't on fire...yet.
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Dec 7, 2013 03:36
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Couldn't find this thread before for some reason, so crosspostin' a sight I had at work from the terrible images thread. Fits better in here, anyway.
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Dec 7, 2013 03:41
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VikingSkull posted:Couldn't find this thread before for some reason, so crosspostin' a sight I had at work from the terrible images thread. Fits better in here, anyway. 
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Dec 7, 2013 04:19
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Its even funnier the second time.
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Dec 7, 2013 04:21
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Rev. Dr. Moses P. Lester posted:<seinfeld> Why can't they make the car out of the antenna? I ask this every time I see a car that's hit a tree while going a million miles an hours and has totally pretzeled itself, but the tree has only lost a tiny bit of bark.
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Dec 7, 2013 04:26
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NitroSpazzz posted:
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Dec 7, 2013 04:52
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 http://www.youtube.com/watch?v=Itw7C_cALSI
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Dec 7, 2013 08:01
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Slavvy posted:"This petrol engine needs to behave a diesel. What do we do?"
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Dec 7, 2013 09:41
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Falken posted:Also there was the staggered road wheels they used on their tanks, and the incredibly difficult to work on engine with the Panther. If you dropped a tool whilst working on one, it's gone forever. Yeah, the interleaved wheels were actually one of the biggest issues in Russia, the mud would freeze inbetween the wheels and freeze the wheels stuck. They had a neat system for sharing coolant between tanks to warm up the engine blocks in Winter.
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Dec 7, 2013 14:03
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NitroSpazzz posted:
Oh poo poo, I'm having a Tubgirl flashback here.
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Dec 8, 2013 00:23
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Maybach was a hand wringing Mad Scientist.
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Dec 8, 2013 01:04
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ShittyPostmakerPro posted:Oh poo poo, I'm having a Tubgirl flashback here. I don't know which is worse: the reference, or that I know why it fits. e: quoted wrong post.
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Dec 8, 2013 01:56
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Falken posted:Also there was the staggered road wheels they used on their tanks, and the incredibly difficult to work on engine with the Panther. If you dropped a tool whilst working on one, it's gone forever. Pretty sure the dropped tool thing was actually the meteor v12 in british tanks, a non-supercharged derivative of the merlin aircraft engine. The service manuals recommended you have every spanner on a lanyard around your wrist so you don't lose it. The staggered wheels are like, an archetypal example of german engineering practice that persists to this very day. It's a brilliant idea in theory because it offers much better stability and cross-country peformance in a tank that isn't any longer or wider than normal...it just had unanticipated consequences that they didn't expect which made it worse overall. It's like when you pull apart a german car and find something is fiendishly cleverly designed to be taken apart using a special method, like a little locking grub screw covered by a tilting cap or something, so they only use one part instead of four and it's all so elegant and so much lighter and more efficient...and then the part that allows that to happen is broken.
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Dec 8, 2013 08:46
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Slavvy posted:
...and it's buried in the engine compartment so you have to remove half the intake and and a motor mount, then jack then engine up 6 inches and remove 6 pounds of vacuum lines to get to it. Or maybe that's just '90s Mercedes.
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Dec 8, 2013 09:01
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Any goons here that work in aircraft maintenance? I attended a little talk at work a couple of weeks ago that talked about how the designers took "maintenance" and "what is humanly possible" and no part exists in isolation" into account when designing systems, fastenings, plumbing, routing etc. It was all very interesting & they showed some cad walkthroughs of an engine mounted on a wing, maintenance doors opening, human arm and recommended tool comes into view, bolts & brackets get removed, parts come out & in again. Basically is that how it is in real life?
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Dec 8, 2013 09:44
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The Navy got big into that around the 1970s or so. Stuff like, if a valve is required to be torqued, the pipes and fittings around it should be arrranged so you can actually fit a torque wrench and adapter in there, and spin it in a reasonable arc with human arms of normal length without three extra elbow joints. This supposedly led to some fairly pioneering efforts in including ergonomics in CAD/CAM. Ships built before this work provided routine examples that would be great for this thread. One of the early vessels with the ergo work had an example where great effort had gone into making sure human hands could get to a certain fitting to (very rarely) hook a test pipe up. Wonderful, except in the push for human integration they had only modelled the end of the test pipe, not the whole thing; the fitting location and minimum bend radius of the pipe meant it literally didn't fit inside the ship without a massively expensive cut through the pressure hull.
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Dec 8, 2013 10:45
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Cakefool posted:Any goons here that work in aircraft maintenance? I attended a little talk at work a couple of weeks ago that talked about how the designers took "maintenance" and "what is humanly possible" and no part exists in isolation" into account when designing systems, fastenings, plumbing, routing etc. It was all very interesting & they showed some cad walkthroughs of an engine mounted on a wing, maintenance doors opening, human arm and recommended tool comes into view, bolts & brackets get removed, parts come out & in again. See if you can find the 777 anti collision light example. The 777 was designed from scratch on CAD and they did include a little human figure to see where arms can reach and what can be accessed with what range of motion and what physical strength and so on. They still managed to build the dorsal (or maybe tail) strobe light so the bulb could only be access from inside the dome but outside the pressure hull - so you'd better hope the thing lasts 20-odd years because there is literally no way of accessing it. I think there was something similar with the 787. The system exists but it isn't fool-proof. (They ended up doing an absurdly expensive retrofit to access it, but after the production line was in full swing)
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Dec 8, 2013 11:41
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Cakefool posted:Any goons here that work in aircraft maintenance? I attended a little talk at work a couple of weeks ago that talked about how the designers took "maintenance" and "what is humanly possible" and no part exists in isolation" into account when designing systems, fastenings, plumbing, routing etc. It was all very interesting & they showed some cad walkthroughs of an engine mounted on a wing, maintenance doors opening, human arm and recommended tool comes into view, bolts & brackets get removed, parts come out & in again. Captain Postal posted:See if you can find the 777 anti collision light example. The 777 was designed from scratch on CAD and they did include a little human figure to see where arms can reach and what can be accessed with what range of motion and what physical strength and so on. They still managed to build the dorsal (or maybe tail) strobe light so the bulb could only be access from inside the dome but outside the pressure hull - so you'd better hope the thing lasts 20-odd years because there is literally no way of accessing it. I think there was something similar with the 787. The system exists but it isn't fool-proof. I used to be a line mechanic, and I can confirm that it is light years better on newer airframes than on older ones. That said, there's always Douglas products. 
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Dec 8, 2013 14:42
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Cakefool posted:Any goons here that work in aircraft maintenance? I attended a little talk at work a couple of weeks ago that talked about how the designers took "maintenance" and "what is humanly possible" and no part exists in isolation" into account when designing systems, fastenings, plumbing, routing etc. It was all very interesting & they showed some cad walkthroughs of an engine mounted on a wing, maintenance doors opening, human arm and recommended tool comes into view, bolts & brackets get removed, parts come out & in again. I've worked on radar/electronics on B1s and it wasn't too bad compared to some stories the older maintenance guy told me. Everything was pretty accessible. Our BAC 111 on the other hand
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Dec 8, 2013 17:52
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Cakefool posted:Any goons here that work in aircraft maintenance? I attended a little talk at work a couple of weeks ago that talked about how the designers took "maintenance" and "what is humanly possible" and no part exists in isolation" into account when designing systems, fastenings, plumbing, routing etc. It was all very interesting & they showed some cad walkthroughs of an engine mounted on a wing, maintenance doors opening, human arm and recommended tool comes into view, bolts & brackets get removed, parts come out & in again. I worked avionics on A-10s and I could see how stuff was easy to get to when it was built. In the 70s. Now after so many modifications and additions it's a horrible multi-layered mess in some places. Still wasn't as bad as an F-16.
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Dec 8, 2013 22:06
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Imagine the B-52.
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Dec 9, 2013 02:21
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Some unknown (to me) sport bike engine dropped a valve: 
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Dec 10, 2013 23:16
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Is it just me or was that cylinder out-of-round before the dropped valve?
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Dec 10, 2013 23:30
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Definitely looks off. Could just be a weird camera angle / lighting though.
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Dec 11, 2013 00:09
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That's a weird looking bike engine, it has separate cast-iron barrels. It would have to be something fairly ancient.
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Dec 11, 2013 00:22
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Slavvy posted:That's a weird looking bike engine, it has separate cast-iron barrels. It would have to be something fairly ancient. http://www.psychobike.com/forums/garage-sale/111855-complete-1570-gs-pro-mod-engine-dropped-valve.html
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Dec 11, 2013 00:27
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Cakefool posted:Any goons here that work in aircraft maintenance? I attended a little talk at work a couple of weeks ago that talked about how the designers took "maintenance" and "what is humanly possible" and no part exists in isolation" into account when designing systems, fastenings, plumbing, routing etc. It was all very interesting & they showed some cad walkthroughs of an engine mounted on a wing, maintenance doors opening, human arm and recommended tool comes into view, bolts & brackets get removed, parts come out & in again. I work aircraft maintenance for E-8C JSTARS and was previously C-130s. Some of their tech orders have very....odd graphics. I do the same thing Plinkey does, but on different airframes.
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Dec 11, 2013 00:53
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BlackMK4 posted:http://www.psychobike.com/forums/garage-sale/111855-complete-1570-gs-pro-mod-engine-dropped-valve.html Air cooled Suzuki, I stand by my statement 
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Dec 11, 2013 01:27
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Captain Postal posted:The 777 was designed from scratch on CAD CATIA, to be specific. Speaking of the 777, enjoy a totally intentional mechanical failure: https://www.youtube.com/watch?v=Ai2HmvAXcU0
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Dec 11, 2013 02:36
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Farmdizzle posted:CATIA, to be specific. 154 154 154 154 154 154!
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Dec 11, 2013 04:48
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Best 777 test footage: http://www.youtube.com/watch?v=y2OS2pwrZTI It slices and dices. 
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Dec 11, 2013 04:50
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Farmdizzle posted:CATIA, to be specific. I was looking for my father-in-law in the crowd, but didn't see him. He was a materials engineer for Boeing for years.
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Dec 11, 2013 16:22
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FogHelmut posted:I was looking for my father-in-law in the crowd, but didn't see him. He was a materials engineer for Boeing for years. Good story.
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Dec 11, 2013 16:24
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Had a failure on the way home from work Monday night. Was driving along merrily and heard a couple squeaks from the truck. I thought it was another leaf caught in the heater blower. No, it was the water pump explosively failing. The sound was the engine fan hitting the back of the radiator. The engine got a hell of a good steam cleaning from the coolant blowing out past the failed bearing and I left a smoke/steam trail that blotted out 4 lanes of freeway. The video shows after I was slowing down off the freeway in neutral when I thought the engine died but it was just the belts getting shredded by a loose fan in the engine bay. https://www.youtube.com/watch?v=sOMoOwDpu8A Last few seconds show the nice quarter panel and d-pillar that cursedshitbox was nice enough to pull and ship to me. I still need to get that d-pillar recovered. "that's not good..."
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Dec 11, 2013 16:59
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Remember, kids, always open up a hood with steam pouring out from under it. 
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Dec 11, 2013 17:39
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stay away from the parts stores ones, they kinda suck and are way over priced. I've had pretty good luck with GMB water pumps.
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Dec 11, 2013 17:47
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MrSaturn posted:Remember, kids, always open up and stick your face directly over a hood with steam pouring out from under it.
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Dec 11, 2013 17:47
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If its only steam blowing out its not gonna do much harm. I mean anyone with half a brain could hear if it was a violent surge coming from under the hood. Now wether they choose to keep using that half a brain and not open the hood is up to them. But ive had this happen numerous times while working at pepboys.  "what do you mean my car needs coolant. The little gauge keeps going to the top and that means its full" That poor camry never had a chance. There was also a lovely knocking rhythm from the timing belt area.
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Dec 11, 2013 18:22
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MrSaturn posted:Remember, kids, always open up a hood with steam pouring out from under it. I always pop the hood and wait 5-10 minutes for the venting steam to get out. I had a bad experience with getting burned by a burst hose.
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Dec 11, 2013 18:32
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SouthsideSaint posted:If its only steam blowing out its not gonna do much harm. I mean anyone with half a brain could hear if it was a violent surge coming from under the hood. The steam itself can cause pretty nasty burns on contact, not to mention that there is coolant going everywhere; you absorb ethylene glycol through your skin and lungs, if you can smell it you are slowly being poisoned.
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Dec 11, 2013 18:51
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