[JAG]

Frank - My opinion is go for an overhaul. these are high failure items (low mean time between failure) that I do not feel is worth spending more money on. I know there will be disagreement on this subject, but that is why opinions are like belly-buttons; Everyone has one and they are not good for anything.

I have seen some pumps last into the thousands of hours, and others in the hundreds. I budget to replace a vacuum pump every 500 hours (if you rely on it for IFR operations) - but on a twin, would run to failure. Single engine - replace at 500 hours.

Jeff