[SEL] ot ? but its engine still

[derek]

cool animation showing a (rotating) 3 dimensional DOHC 4 cylinder engine 
being completely assembled from a bare casting, even showing all the bolts 
tightening. When the assembly is complete, it shows the working engine (in 
slow motion) but with a transparent block, it zooms in to show an individual 
cylinder running through all 4 strokes.
 Can be downloaded as well.( ~44 mb )