Question regarding Electric Fuel Pump

[Lance Murray]

Why couldn't an A&P fix a pump? They are qualified to fix power plants and Airframes. These are part of the airframe right?

While there are Repairman that are certified to fix the pump I think an A&P can legally do the same. He just has to be willing to sign off on it.

[Lance Murray]

Gene, Let us know if you can source the correct brushes. This might be good preventive maintenance.

[lgrennlee]

An interesting thread. I am having issues with radio noise and my fuel pump. Failing brushes would definitely be a source of electrical noise.

Thanks for the information gentlemen.

Logan

[Lance Murray]

What pump do you have? My new replacement pump makes horrible radio noise.

[lgrennlee]

What pump do you have? My new replacement pump makes horrible radio noise.

Lance, I believe I have the original Duke pump. I ordered a Weldon for replacement. I have about 300 hours on the plane which seems to be in the range of failure give the other comments. I'd rather be proactive on this particular item.

Which pump do you have?

I also think ferrites might help.

[Rich]

What pump do you have? My new replacement pump makes horrible radio noise.

If it did this from day 1, be sure the chassis is properly grounded. It actually requires slight disassembly of the pump when installing to properly ground it. And when we replaced my first pump my mechanic noted the grounding wasn't done per standard practice.

[Lance Murray]

My duke pump didn't make any noise. The Weldon does. I haven't torn things apart to investigate it. I think I will soon.

[lgrennlee]

Just following up on this thread. New pump installed, not audible while running and no audio noise. Zero flow pressure ~ 35 psi. Sounds like it is fixed!