oil pressure issue

[Dana]

Had an oil pressure issue the other day... after landing and taking off again, I noticed the pressure indication was low, around 60 psi where it's usually rock solid at 90 at anything much above idle rpm. Eventually it came back up, and was slow to drop when throttling back, even stayed up for awhile after shutdown, normal otherwise, no leaks. Almost certainly a plugged capillary tube to the sender, or a plugged orifice... I assume there's an orifice to prevent rapid oil loss if the capillary tube breaks? What does that orifice look like and where is it located? I haven't pulled the cowl off yet to look.

 

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