Lapsley

Member
Two things
1. For those of you who have been concerned about the accuracy of your fuel pressure sensor. Find an old blood pressure cuff with gauge and pump. Cut off the cuff. Adapt the tube to a 1/4 flare fitting. Remove the red line to the fuel sensor and attach the modified blood pressure device. Now you can use the pump to apply the desired pressure to the sensor. The gauge is calibrated in mmhg so divide by 52 to get PSI. I.E. 52mmhg equals 1 PSI. 5 PSI equal 260 mmhg.

If the blood pressure gauge is not zeroed when disconnected you can zero it by turning the hose bib and the locking nut on the base. Some gauges do not have a 0 but instead use the center of the small rectangle on the bottom of the dial to zero the gauge.

2. In the process of checking my Dynon sensor I found that it was stuck at 0.4 psi indicated on the Dynon from 0 to almost 2 psi.

Roger