Leaph737
Member
I have a Aersport I-0360 engine with a Silverhawk Ex-5AV servo and a Dynon Skyview system in my Rv-7A and recently I have noticed that my fuel pressure will start to fluctuate every onece in a while when I go above 5,000 ft. Normally it would remain steady at 24 psi but when I have it leaned out it will fluctuate down to 21 and sometime goes down to 18psi and then stay at 24 for for a while. It is only intermittent. Most of the time time it hangs at 24. I usually cruise at 23 squared. I have changed out the Kavlico sensor to no avail. There are no other indications that lead me to believe there is a lack of fuel. fuel flow is normal and remains steady. I have checked all my fuel connections and they are tight. I only have 230 hours on the engine and I spoke with a Lycoming engine builder and he said the fuel pump should last till overhaul and it is very doubtful it is that. Has anyone ever seen this before or have any suggestions? I will be calling Precision Airmotive and Dynon to see what they have to say.
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