Just a thought, has anyone ever tried using an ultrasonic cleaner in situations like this?
I don't necessarily mean, dunking the entire bird, but as in this case, dipping the motor sections in, 1 at a time?
I've no idea if dunking the entire bird in, albeit using a non-conducting, non-corrosive solvent, like high-% isopropyl or ethyl alcohol, might be something worth tryingā¦
I will say, WD-40 is a moderately decent preservative, but not originally designed to remain in place for use long-term as a lubricant. In the case of fine moving parts; it's known as a āpolar solventā in that, with time, the evaporative portion will go away, leaving a sticky residue. I know this from working with servicing firearms.
If faced with a similar situation, I'd 1st flush any non-electronic parts in fresh water, as it tends to dislodge if not dissolve any potentially dried-on stuff. I'd also follow that up with a light non-polar solvent, & then blow all of that out.
Make sure that all the WD-40 or similar lubricant was flushed away, & then use an application of high-grade silicon or perhaps even better, Teflon, to provide a thin, light, generally non-sticky/dirt-attracting lubricant if needed.
Hopefully, I won't be needing to do that with my
M3P; I'm relating from my years of experience servicing marine equipment in a saltwater environment.