Pico scopes and such

[walterk]

Here I go again at it....
In the automotive gas engine applications, there is a substantial amount of analysis available on waveforms generated by a secondary coil testing, cylinder pressure testing, and injector testing. I am curious if that somehow could be replicated on diesels for in cylinder pressure/stroke/valve timing analysis? The access to injectors is not that easy and obviously no plugs and coils. Are you guys having good results with relative compression tests? If so, where do you find "known good" waveforms for Cummins engines or a diesel waveform problem analysis and case studies? The obvious problems are easy, but the nuances in performance are more difficult to pinpoint without a good waveform for a reference.