Strange request: I was investigating why some hydraulic lifters I installed in my car were allowing the push rods to pop off. I have since discovered that the two different lifter brands in question had two different hole sizes that allow the oil to enter the lifter. This oil pressurizes the...
I'm a military pilot and a mechanical engineer. I'm trying to find out what the "+" symbol which randomly appears on the surface of almost every avionic component face plate on my aircraft is for. I've been told it was a "grounding" point which I assumed to mean a static discharge point to...
