Sluggish oil pressure reading

[Frankh]

When starting my Lycoming clone I notice I have to count to about 6 seconds before I see ANY oil pressure at all and another 5 seconds to rise above 15psi.

The readings settle down to normal (60psi) after a while but the engine manufacturer is concerned (as am I) that the oil pressure is taking this length of time to come up.

One thought was that there is a lot of damping in the pressure signal.

Is this normal or should the reading be immediate the sensor sees the oil pressure?

Thanks

Nervous Frank

 

[dynonsupport]

There is some damping in that signal, but it's probably only a second at maximum before it's at 90% or so of the change. So if you go from 0 to 60, within 1 second we'll read 50+ PSI.

We don't have any damping as long as it sounds like you are seeing, so that's probably not coming from the EMS.