Cool videos on engine oils

[Alpinestarhero]

I was perusing youtube for stupid videos, found a few about people seeing how they could kill an engine. This eventually led to links to videos about engine lubricants....they are old, but very interesting

Part 1 (http://www.youtube.com/watch?v=SovjQKq7NQo&feature=related)

Part 2 (http://www.youtube.com/watch?v=QD56F2Eezeg&NR=1)

Enjoy!

Matt

[the_lone_wolf]

I haven't seen an engine cover like that since I owned a 1981 Austin Metro:D

[Alpinestarhero]

the oldness of the video makes it even better, its the kind of thing they still show in GCSE science lessons :lol:

[Mr Speirs]

The title of this thread is an Oxymoron

[Alpinestarhero]

The title of this thread is an Oxymoron

:laughat:

[Spiderman]

I'm loving it, so old its interesting.

Nice find Matt.

[the_lone_wolf]

Well I didn't know about the dispersing additives for carbon deposits, learnt something new there:D

[flymo]

Strangely fascinating. Rock and roll eh? :-)

Thought this one was interesting too....http://www.youtube.com/watch?v=sY10X0WDoUo

View of the inside of a cylinder with the engine running.

[Alpinestarhero]

Strangely fascinating. Rock and roll eh? :-)

Thought this one was interesting too....http://www.youtube.com/watch?v=sY10X0WDoUo

View of the inside of a cylinder with the engine running.

i bored maria with that one! Really cool, UCL have an engine that you can see into the combustion chamber. There are some other videos on youtube aswell showing valve float (http://www.youtube.com/watch?v=_REQ1PUM0rY)

and heres a really nice video of ferrari engines being put together:

http://www.youtube.com/watch?v=AdcoVurVY30

damn, i love youtube!!! I have discovered its usefull for more than watching people planting their face in an often painfull manner against very hard materials :smt038

[flymo]

dude, we are slipping into depths of nerdiness that others will frown on :-)

Amazing seeing the amount of valve movement in that engine.

[Alpinestarhero]

dude, we are slipping into depths of nerdiness that others will frown on :-)

Amazing seeing the amount of valve movement in that engine.

no, we must keep this thread alive...its engines!!! engines!!!

do valves normally rotate in the engine like that? I guess not, that would just promote further wear

btw, engine death, with dissection of engine:

http://www.youtube.com/watch?v=PRGInQXXSFc&feature=related

[flymo]

do valves normally rotate in the engine like that? I guess not, that would just promote further wear

Given that the video is basically an interesting commercial they have probably picked out a severe case of valve bounce and movement to demo rather than a typical engine.

Amazing to see that stuff working though. I can just imagine all those Ducati engineers sitting around a video screen in their labs developing pneumatic valve systems for their motogp bikes :-)

note - I think we need a thread title change.....engine nerds unite or something.......the engine nerds video thread.....

[Alpinestarhero]

Given that the video is basically an interesting commercial they have probably picked out a severe case of valve bounce and movement to demo rather than a typical engine.

Amazing to see that stuff working though. I can just imagine all those Ducati engineers sitting around a video screen in their labs developing pneumatic valve systems for their motogp bikes :-)

note - I think we need a thread title change.....engine nerds unite or something.......the engine nerds video thread.....

I wanna go to ducati. Ducati have a bit of their website devoted to mechanical engineering, its geek heaven

Title change...yes. we have detracted and seen this thread to be greater than the sum of its parts.

[Jayneflakes]

I feel like I have learned something today. Cheers Alpinestarshero, you are pretty kewl in my book! :D

The wife came home from work and found me watching the first two videos you posted and she now thinks I am a major nerd. :smt019

Oh well, she should have guessed that a while ago. :cheers:

[Alpinestarhero]

I feel like I have learned something today. Cheers Alpinestarshero, you are pretty kewl in my book! :D

Well I'm glad I was usefull, I have this ideology where everyone understands how an engine works and how important good oil is

:D

[flymo]

I have this ideology where everyone understands how an engine works and how important good oil is

:D

that surely is the key to world peace :cool:

[Spiderman]

As Mr A*hero knows there is secret science geekery in my life too. I read the New Scentist for fun ffs, so this stuff is not only edumactinionalism to me but also fascinating stuff.

Those in the know like Sid Squid have attempted to explain things to me that "theroeticaly" i understand. Show me a nice video of the same thing tho and i just get it so much more.

Flymo, that vidof the inside of the cylinder...first time i saw it i was amazed by it. This time i think i kinda get how it all works.

Spidey - doesnt mind admitting to knowing nothing about engines but being fascinated by how they work.

[flymo]

Spidey, you'll love this then.....geek porn....

http://www.animatedengines.com/index.shtml

[Spiderman]

Wow some excellent stuff there Flymo, thanks mate. I usually use the How Stuff Works website as they have similar kinds of graphics to illustrate erm, well, how stuff works, lol.

[Alpinestarhero]

Spidey, you'll love this then.....geek porn....

http://www.animatedengines.com/index.shtml

kleeeennneeexxx!!!

[Binky]

Quite enjoyed the oil ones. They've got an old school cool vibe to them.

I found myself strangely interested. :cool:

[thedonal]

This is a GREAT thread.

Top find there Mr A*Hero!

And that Ferrari video- beautiful. I'd love to see an Aston one in the same vein.

[Alpinestarhero]

Thanks thedonal...it'll probably be forgotten about and lost to the vastness of the .org's data banks soon though

but we'll all remember what a great time we had here, nerds united

[thedonal]

Quick someone- sticky it!

[flymo]

Any spare lego lying around?

http://www.youtube.com/watch?v=onCpCWAnZuo

[Alpinestarhero]

Any spare lego lying around?

http://www.youtube.com/watch?v=onCpCWAnZuo

these things are so cool, thers some V8 lego engines made aswell with DOHC

I would love to make a replica honda RVF engine with the gear driven cams from lego

[Stig]

Well this is a good thread.\\:D/

[Alpinestarhero]

Well this is a good thread.\\:D/

sticky, sticky, sticky, sticky

go on, it'd make me so happy to have my own sticky'd thread

[Jayneflakes]

When did Lego get so complicated, I remember being able to make a single piston model engine when I was a child (when my sister and I were not fighting over the lego set) out of technical lego. The sad thing is that seeing these just makes me want to go out and buy Technical lego again. Am I too old for this? :D

Also while looking through links for Lego engines I found this guy (http://www.youtube.com/watch?v=TclGbFPjBWI&NR=1). He has invented the most amazing concept and I do not know why no one else has ever thought of it? :cool:

He has taken his humble mountain bike and fitted an engine, effectively making some sort of Motor-bicycle hybrid. What would you call such a device. Obviously it is a bike with a motor so it would have to be called an Engine assisted multi-terrain bicycle. I am not sure I could think of a simpler term! :smt043

I wish I could ride a bike that had an engine, thus making forward progress much easier. In a strange kind of way, the guy is a genius :why:

[flymo]

makes me want to go out and buy Technical lego again. Am I too old for this? :D

not at all....its great that when you get older you can afford to buy the toys you wanted as a kid :-)


Also while looking through links for Lego engines I found this guy (http://www.youtube.com/watch?v=TclGbFPjBWI&NR=1). He has invented the most amazing concept and I do not know why no one else has ever thought of it? :cool:

Problem with these though is that by the time you have ironed out all its weaknesses and developed it to work properly you end up with a motocross bike! Might as well just get a crosser :-) I have an old cr250 in the garage waiting to be put back together......once I've finished playing with my kids lego.

[punyXpress]

no, we must keep this thread alive...its engines!!! engines!!!

do valves normally rotate in the engine like that? I guess not, that would just promote further wear

btw, engine death, with dissection of engine:

http://www.youtube.com/watch?v=PRGInQXXSFc&feature=related

I think some are designed to do just that - evens out wear or something? If the cam follower is always in the same alignment with the cam, wear will be in a line, whereas rotation will spread the wear.
What was the valve clearance in the first engine? Looked H U G E
When they started the engine you could hear it cranking for a while before anything moved. Timing out?

[Jayneflakes]

not at all....its great that when you get older you can afford to buy the toys you wanted as a kid :-)

Well so far my step son has pinched my Radio Controlled Abrams Tank, maybe we could share the Lego! When as a child I played Lego with my sister, she built cars and houses and I build a robot and a crossbow. My Gran was horrified and my sister cried when I shot her with it! :smt082


What would you call such a device. Obviously it is a bike with a motor so it would have to be called an Engine assisted multi-terrain bicycle. I am not sure I could think of a simpler term!

you end up with a motocross bike! :-)

A motorcrosser, who would have thought of calling them that? :smt081

[Spiderman]

Any spare lego lying around?

http://www.youtube.com/watch?v=onCpCWAnZuo

Wait a minute, did this guy make this from scratch with spare lego bits or can you buy this as a kit??

I used to spend most of my days playing with my lego as a kid. My mum always laughed that i'd make stuff that was never what was on the box but that i wanted to make from all the various pieces.

never knew about engines when i was a kid tho.

[embee]

........do valves normally rotate in the engine like that? ..........

It's desirable to generate some valve rotation in order to keep valve seats clean and ensure good sealing.
There have been a variety of devices used in order to ensure/control rotation, some called "roto-coil" lower valve spring washers which were developed specifically to deal with very high lead additive levels (I think it was military use). The lead would deposit on valve seats and cause sealing issues and seat burning, rotating the valve especially just as it seated would wear this lead deposit away. Low/no lead fuels largely negated the need for this sort of device.

Modern engines usually use multi-groove "butting" collets, i.e. the collets meet and are gripped in the top washer leaving the valve stem relatively free to rotate. Manufacturing methods have allowed this design to be made economically. It is imperative that the loading is shared between the grooves/beads (usually 3 grooves) so they are made to very close tolerances.

Whenever I've been involved early on in valve train development, I have always done a valve rotation test on a motored rig, measuring the rotation rate versus engine speed (usually using video looking down the ports). This ensures that a) there is some rotation within the typical working speed range for the application, b) there isn't too much rotation giving rise to excessive wear. There are tricks you can use to engineer the rotation, valve spring design can be tweaked if necessary.

In a typical modern car engine you tend to see rotation start around 3000rpm, but it can vary a lot and if valve springs are not accurately located at the lower end it can be pretty erratic. One of the problems with the "school run" car can be poor valve sealing due to low engine speeds.

[Alpinestarhero]

wow, ok, cool...i considered that it would help with the seating, but i also thought it would wear out the seat over time, which made me think that really it was a bd thing. To know its not is a lesson learnt :D I suppose modern materials (low-friction / hard coatings) helps with the reduction of wear? I suppose the school-run car / town car never sits at high enough rpm for long enough for the valves to rotate to "clean" the valve seats

My dad has a VFR400 engine sitting on his workbench, I was asking today how the oil gets to the cams, interesting stuff :smt038

thanks embee, i enjoy your posts :thumright: always very informative :D

[Spiderman]

Quick Matt... Fifth Gear are doing a thing where they are driving cars with no oil in to see what happens (like we dont know)

[Jamiebridges123]

Interesting, not cool. But still a decent way to spend like 15 minutes on youtube. :p

[Alpinestarhero]

Quick Matt... Fifth Gear are doing a thing where they are driving cars with no oil in to see what happens (like we dont know)

i cant watch 5th gear, i dnt have channel 5 in my bedroom at home and mum and dad are watching something else!!!!!!

destruction is imminent

:rave:

[Spiderman]

Ah well, i'll let you know if it was any good and if so you'll have to watch it on their website.

[hindle8907]

kool vids thanx.

[Alpinestarhero]

spidey, was it any good? tbh red-linign an engine with no oil generally isnt that interesting. What is fun is when people tun their cars in some areas....but forget other areas. And race a BMW M3.

Here's a demonstration:

http://www.youtube.com/watch?v=PRGInQXXSFc&feature=related

:smt033

[Spiderman]

Erm i ended up missing most of the programme as something else took my attention away buddy. Bit i did see up to was the dude driving the car until it made lots of noise and he pulled over. I'm hoping they then did an aoutopsy on the engine and showed the state of the parts affected, but thats just what i'm hoping.

Anyone else see it?

[Alpinestarhero]

watch here http://fwd.five.tv/videos/tims-oil-campaign

[Spiderman]

So no autopsy then. Boring.

[Alpinestarhero]

So no autopsy then. Boring.

yup. did you hear one guy in the car park bit

"have you checked your oil latley"

"no"

"would you like it checked and topped up?"

"no"

:lol:

mmmm need more engineering videos of engines

[Spokey]

interesting vid and a good campaign - you'll probably find it's one in 3 cars are low on oil - modern cars - it's "acceptable" to use 1 litre of oil every 1000KMS !

Check every 2 months ... ? ideally every week, or each time you fill with petrol

Q8's finest ? - Halfords own brand in his hand ( so must be made by Q8 ) - also, interesting he had a number of different cans of oil so nice to see they were probably trying to get the right spec for the cars they were checking too as that is also VERY important

Costs a couple of quid ?... unfortunately if you have a modern Audi that's doing 800 miles to a litre at £15.00 a time, I'd say that was more than a couple of quid !!

one thing - oil is cheap compared to a new engine.

Makes a change to see 5th gear actually getting something nearly right - unlike the " run your car on chip oil " programme ... be interesting to see the inside of that engine after a few miles !

Spokey

[Alpinestarhero]

Oil consumption is very much down to how well the engine is "run in" isnt it? I dont think new cars have a run in schedule...is it all done at the factory? Or is it because of the differant (i.e. lower friction) oil that cars use in comparison to motorcycles that maybe its better you run it in by just driving normally?