gchutka

A 480fps video of fluttering engine vacuum gauge and cylinder 1 spark plug firing. Frame by frame analysis shows which cylinder is firing (power stroke) when positive pressure hits the intake manifold. Shows that there is probably a leaking intake valve on cylinder 5 and 8.

Vacuum gauge showing flutter at idle.

Video of a spark test captured at 480 fps.

Vacuum test showing the affect of the electric fan kicking in.