Today I realised that my engine air filter had been improperly installed. One of the clips of the covering was not closed properly. I think its because I didn’t unscrew the intake pipe while installing and the pressure caused it to come off. It could have been like this for some Months as that’s when I last looked at the filter. The after filter part of the intake should have no dust however I found the after filter housing had quite a bit of dust so I guess it’s been going through the intake for some months.
I know that dust and debris can damage an engine and my question is not about this.
Im wondering how can I know to what extent, if any, the incoming dust/debris may have reduced engine power.
Unless you guess by feeling I guess the only way to know is if a compression tests shows inconsistent compression, or a dyno shows less power than should be, would I be right?
And if the results for both of these are near normal/or healthy would it mean that whatever dirt has gone through has not caused any real damage and there shouldn’t be provided the intake is clear from now on?