I am getting around to learning about the 100/500 hr services on my O200 mags, 4201 and 4301.
For two years of ownership, I have assumed the different numbers were similar versions of the same mag, one with and one without the impulse coupling 25 degree delay.
Based on that, I thought I had two properly working mags, one with an impulse.
After some research, I now believe they are just old and new versions of the same thing, both marked with the 25 degree lag angle but, I only hear one click. It could be they are impeccably timed and click together but I don't think so. Here is the question.
Is it possible for something to break in the impulse coupling that lets the mag operate as a normal non lag mag? Running checks on L, R and both seem to have normal drops.
Can an impulse coupling lock and work as a non lag?
I am trying to understand this before hooking up the timing box this weekend.