>> ^spoco2:

We just bought a 2 year old Kia Grand Carnival (the Sedona in America), replacing our old 2002 Carnival that had it's engine die after a tiny bloody plastic T joint snapped causing the radiator water to spew onto the road instead of around the engine to cool it. This resulted in an engine that overheated very quickly and a system that was de-pressurised, and apparently not really able to be re-pressurised (don't tell me it could, I don't want to know that it was actually a cheap fix when we're told the engine was cactus... don't want to know we needlessly just paid out a chunk of money on a new car that we didn't need to).
Aaaanyway.
When I was looking into whether the engines in the new Carnivals are any good (apparently they are, Hyundai Lambda engines made in the US of A), I noticed they made a big deal on the wikipedia page about it having a timing CHAIN rather than belt, and wondered why this was a big thing.
Now I know


Here is me, NOT telling you it was a cheap fix, even if the engine started to seize from overheating after you ignored the "check engine" warning light. I also won't tell you that if it didn't come to a screeching, banging, violent halt, you probably could have "nursed" it home/to mechanic by waiting until it cooled down.

No sir, I REFUSE to tell you any of that.

I will tell you that if the reason it couldn't be pressurized was "a warped cylinder head" then ya, the engine is boned, but I'll avoid saying it would be about $2500 for a motor out of a auto wrecker (junk yard, used parts lot, etc) or even around $300 for a new cylinder head.

>> ^savethecirclepit:

I am in the cylinder head business. This issue and overheating are the top reasons to prompt an engine to be torn down. I have seen some pretty catastrophic engine damage when these things break. We actually have units that come in where the valve hits the pistons, breaks and on the next stroke takes the broken pieces and jams them into the cylinder head.
Don't stretch the mileage out on these things if the book says 60,000 change it at 50-55. Also don't be cheap and just get the belt changed. I know it seems like video is just trying to sell you extra parts but it is good advice to change the belt tensioner and the water pump. Always go for the "timing set" rather than just the belt. It will seem like a lot of money 300-500 bucks to get this done but when you figure the alternative 2000-4000 bucks or maybe even an entirely new engine, that cost will be minimal. I have seen too many people get burned by trying to cut corners and be cheap. Don't let this happen to you.
If you have any questions about this: dovernpc@aol.com


I prepare cars for the track but in a previous life I was a grease monkey and I can confirm everything ^savethecirclepit wrote.

That and chains stretch over time so even if the book says its a non serviceable item find out when others have had to change it and do the same.

I am in the cylinder head business. This issue and overheating are the top reasons to prompt an engine to be torn down. I have seen some pretty catastrophic engine damage when these things break. We actually have units that come in where the valve hits the pistons, breaks and on the next stroke takes the broken pieces and jams them into the cylinder head.
Don't stretch the mileage out on these things if the book says 60,000 change it at 50-55. Also don't be cheap and just get the belt changed. I know it seems like video is just trying to sell you extra parts but it is good advice to change the belt tensioner and the water pump. Always go for the "timing set" rather than just the belt. It will seem like a lot of money 300-500 bucks to get this done but when you figure the alternative 2000-4000 bucks or maybe even an entirely new engine, that cost will be minimal. I have seen too many people get burned by trying to cut corners and be cheap. Don't let this happen to you.
If you have any questions about this: dovernpc@aol.com

That's not just mesh. That's more like security bar fencing. My guess is someone well-meaning but without much mechanical intelligence thought it would be strong enough for cars to drive over, and better than an open hole, so they welded it to a cylinder that happened to fit and poof, instant manhole cover. Either way, that's an engineering *fail.

>> ^Asmo:

>> ^EMPIRE:
I don't know what you're thinking, but I'm thinking someone placed that metal mesh over the hole so that cars could go over the hole, but the mesh actually got caught in the hole, and levered the car up.

Umm, the video makes it pretty clear.
The front left tyre goes in to the hole, smashes in to the far side and the ass end of the car rises as the front dramatically decelerates...

Nope. Watch the second video (in eric3579's post above) on 720p and you can better see what happens.

The manhole has an off-center metal mesh cover welded to a cylinder that fits down into the manhole (presumably to keep the mesh in place).
The front-left tire clips the side of the mesh cover, presumably just enough to pop it up. That's what catches the undercarriage and vaults the back end up.
The structure of the mesh-cylinder apparatus is more apparent at the end of the video when it settles near the hood of the vehicle.

>> ^Porksandwich:

Well I think I'd pick a ring that could at least be cut off if needed. Although that mercury ring would be neat....
Personally I think if you could get the various metals to stay together, I wouldn't mind seeing varying shades of steel, titanium, gold, copper, and platinum made into a neat pattern. Kind of a mix and match but all one loop, not inlays or anything like that. Like how marbles are made, especially gold lutz marbles.

It'd certainly be unique, I doubt any one band would be the same if they could manage to get them to be solid enough to stay together on someone's finger in a not-to-big loop.



Cool idea. Start with the four metals as wires and then twist them into a spiral and then forge them into a cylinder.

Comment hidden because you are ignoring dag. (show it anyway)

We definitely lost some traffic during that failed experiment, but not permanently. Alexa is a bit delayed and kind of inaccurate IMHO. We seem to be firing on all cylinders again now though. CloudFlare is definitely on my shit list. Reminds me I must go tweet about this. >> ^eric3579:

It seems site traffic has been down quite a bit this week. Was curious if the CloudFare was responsible and if you think we will be getting it back. From the one month traffic chart on Alexa, it looks like we have lost 40% to 50% of our avg. monthly traffic this week. Just very curious. @lucky760 @dag

Although it is a formula race car, it's not formula 1. It's actually a Formula BMW race car used at the Nurburgring (Nürburgring Formel Super Racing). Here are the specs from the website:

Formula BMW
Engine: 4 cylinder, 1,200 cc
Maximum rev: 8,200 rpm /
Chassis: Carbon monocoque
Power: 103 kW, 140 hp
Weight: 465 kg
Transmission: Hewland sequential 6-speed

Still, a very cool video.

Would you like me to change the title or description to fit your personal projection? I did not tell you anything other than a video description. But as a loving Jehovah witness I would love to change everything about the videos educational wording to suit you.

In reply to this comment by Enzoblue:
This is one way someone makes pistons. You can't tell me BMW makes them this way. Too much human involved and at 4-8 cylinders per every car you see on the road, way too slow a process.

This is one way someone makes pistons. You can't tell me BMW makes them this way. Too much human involved and at 4-8 cylinders per every car you see on the road, way too slow a process.

I do really want this car...this or the Two cylinder.

It's only the prototype, they're looking to make the next version lighter, higher revving, more powerful.

The spitfire used a 2 speed blower that the pilot switched in flight, but the equivalent Messerschmitt had a more sophisticated variable one (see http://en.wikipedia.org/wiki/Daimler-Benz_DB_605 for details).

I don't know what the Mustang had, but I'd assume they've copied it here.
>> ^TheFreak:

>> ^oritteropo:
It's already supercharged according to the english version of the page.>> ^TheFreak:
Needs a turbo.


Um...needs a two stage supercharger then.
From the bore and stroke I'm not sure how they get away with calling this 1/3 scale. More like 1/5. Even then, the displacement is a fraction of the type of 12 cylinder engine they're replicating because of that whole πr^2 thing.
Nitpicking. I suppose the point is that it's cool.
Still not 1/3 scale.

>> ^oritteropo:

It's already supercharged according to the english version of the page.>> ^TheFreak:
Needs a turbo.



Um...needs a two stage supercharger then.

From the bore and stroke I'm not sure how they get away with calling this 1/3 scale. More like 1/5. Even then, the displacement is a fraction of the type of 12 cylinder engine they're replicating because of that whole πr^2 thing.

Nitpicking. I suppose the point is that it's cool.
Still not 1/3 scale.

Comment hidden because you are ignoring dag. (show it anyway)

Wow - that's got an amazing sound for such a small engine. Sound like mini Lamborghini.>> ^Boise_Lib:

This one's air cooled.
>> ^dag:
Cool stuff. Thanks for that.
>> ^BoneRemake:
@dag
Air cooled engines work fine because they have that massive flow of air around the cylinders, some day I will own one like this.

This one's air cooled.

>> ^dag:

Cool stuff. Thanks for that.
>> ^BoneRemake:
@dag
Air cooled engines work fine because they have that massive flow of air around the cylinders, some day I will own one like this.