Yesterday my electric fuel pump did not start when the master switch was turned on. I have my Dynon D-180 set to start up on the EMS screen. One of the first items on my Before Engine Start Checklist
is to verify ~ 2psi fuel pressure from the electric pump. Once the engine starts I check for ~ 5psi fuel pressure which then tells me that both the electric and engine-driven pumps are working.
So yesterday I had no pressure indication from the electric pump with 244TT. VAF to the rescue… and first thing to try is to give the electric pump a smart tap to dislodge any debris that may be inhibiting the internal solenoid piston. I taped the top of the pump with the handle of a #2 Phillips-head screwdriver and it fired right up. Looks like it might be a good fix.
I now have 40 hours flight time since I took the fuel tank apart for the strengthening SB and I can only guess that some debris from the scraping/cleaning/reassembly found its way past the finger screen at the discharge fitting on the bottom of the tank.
I made an access hole in the baggage floor access plate so I can tap the pump should the need arise without removing any screws. Carpeting on the floor of the baggage compartment will cover the hole and prevent anything loose from finding its way into the belly of the plane. I cut a piece of aluminum tubing to use as a tool to tap the pump. This will be kept in a small tool box that stays with the plane.