Don't know how many of you may have already seen this on YouTube, but I thought it was kind of cool. This is a cut-away of the valve train on a S1000R where you can watch the valves operating at high speed.
http://www.youtube.com/watch?v=VSDa-EUT3ZE
Don't know how many of you may have already seen this on YouTube, but I thought it was kind of cool. This is a cut-away of the valve train on a S1000R where you can watch the valves operating at high speed.
http://www.youtube.com/watch?v=VSDa-EUT3ZE
'09 BMW 1200 GSA, '10 BMW F650GS (in the spring for Wife), '09' V Star 950, '09 Honda Rebel (wife is learning),
'77 Honda 750A. New garage - need more room for more bikes!
Thanks for posting! That amazing to watch isn't it?
IBA #44567
"Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe."
-Albert Eienstein
Neat. I backed away from my monitor so I didn't get hurt if it blew......
K75S
Original litter
Original owner
2012 Ural Gear Up
Thanks for posting!
It is amazing how much oil they get and the tight tolerance of the valve cover
2011 R1200 GSA Smoke Grey Metallic Matt
2009 G450X White
IBA #35651
Rogue Moderator
S-1000-RR Video
Not sure if this is the right K-bike section. Who know there were so many. But I digress, check out this video of the new 1000cc engine.
http://www.autoblog.com/2010/02/19/v...%28Autoblog%29
The thing about traveling is, you never want it to end and you can't wait to get home.
I answer to Roy, Chief, or Sarg.
04 R-1150-RT current bike. 94 R-1100-RS74,383, Sold, 78 R-80/7, K.I.A by a D.U.I
www.OceanStateBMWriders.com
The good news is it is in the right forum, the bad news is I need to merge with an identical posting of the same thing.
Thanks for sharuing though :though
2011 R1200 GSA Smoke Grey Metallic Matt
2009 G450X White
IBA #35651
Rogue Moderator
http://jalopnik.com/5477382/heres-wh...e-at-14200-rpm
This is pretty cool!
http://jalopnik.com/5477382/heres-wh...e-at-14200-rpm
This is pretty cool!
I would love to know the story of why the engine is cut open to begin with. Looks like crash damage or something.
Doug, 2011 R1200RT Polar Metallic
MSF #127350 NAUI #36288
3rd posting of the same movie - merging with the other 2 in Wedge
2011 R1200 GSA Smoke Grey Metallic Matt
2009 G450X White
IBA #35651
Rogue Moderator
Merging 4th iteration of same
2011 R1200 GSA Smoke Grey Metallic Matt
2009 G450X White
IBA #35651
Rogue Moderator
wow
Nik #140220 - '88 K75C | '96 R1100RS | '77 R100RS | '06 DL650
'01 525iT (oOO=00=OOo)
Helmets don't save lives but loud pipes do?
care to opine? in my mind, the springs spinning don't signify valve float, just centrifugal forces produced by the intake/exhaust "whirl"Originally Posted by some guy in youtube
04 GS ADV
Didn't a BMW demo rider drop one out west within the last few months?
"We're driving fast from a dream of the past to a brave new world" - Steve Miller Band
Valve float is when the valve leaves the follower & "floats" open, not being under the control of the follower. As for why it spins, I couldn't see the video, if it was a slow motion vid, or full motion speed, it was removed. Watch a "spintron" test of springs & valves & you will see all sorts of monkey motion going on. I think the rotating motion has more to do with how the springs are wound & the follower's motion than any spin of gasses in the cylinder. Can't confirm what is going on though, as the vid is gone...
Here is a spintron test just to see the harmonics in action:
http://www.youtube.com/watch?v=i_Npz...eature=related
This one shows "severe spring rotation at float" & lots of good stuff.
http://www.youtube.com/watch?v=_REQ1...eature=related
Says severe rotation caused by valve bounce...
Also, on the cut-a-way...
It was probably done just to demonstrate the engine motion. When in college, I created a couple of cut-a-ways, one was a turbocharger and a small engine. Both fully rotated & showed the workings. That one does look broken though, I used to paint the cut edges...
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