Engine
SpaceStart / stop
[ / ]Target rpm down / up
1 - 5rpm preset
, / .Slow motion slower / faster
mSound on / off
Camera
DragOrbit the pivot
Right-dragSlide the pivot
Wheel / pinchZoom (smoothed)
W A S DWalk the pivot
Q / EPivot down / up
ShiftHurry
FFoot-pad walk mode
VReset camera
EscLeave walk mode / close
Viewing
CCutaway section
Plane X / Y / Zsection axis (panel)
rFlip section side
XExploded view
AAssemble back
IPart inspection
N / BNext / previous part
p / oStart / stop
jCrank with no ignition
GFrame selected part
kVibration
tHeat glow
lBay lights
h or ?This panel
How it is built
Crank4 pins at 45/135/315/225 deg
Pistonsexact slider-crank off the pin
Camshalf crank speed, 4 chains
Valveslift read off the lobe profile
Firing1-8-4-3-6-5-7-2 every 90 deg