At 2:30 of this video they mention aligning the holes shown machined on the outside of each cylinder to the top for access to the coils for wiring, etc. I believe they mount a circuit board for each cylinder atop/near each hole to access the coils to supply control power.
They do not show the coils inside and i am not sure how they seal it all up. Another video shows the compression coil directly around the target spot of the plugs. A containment coil is supposedly around the rest of the piston. > > ProdEngAssemble.avi<http://www.youtube.com/watch?v=AqFgM8osjLE&feature=youtube_gdata_player> > > > Sent from my iPad >
