Everyone thanks for your response.

 

After lengthy evaluation and communications with Dukes and CJ aviation I have learned the following.

 

The Dukes pump is designed for “intermittent duty only” and is not a self priming pump. It does not have a thermal overload relay. I also found out that the tolerances in the pump are not well controlled.

 

Unfortunately I have been unable to reproduce the failure that I experienced last week. All electrical connections check out properly. The aircraft only has 140 hours on it.

 

I have decided to replace the Dukes pump with a Weldon pump.

 

The Weldon pump is designed for “continuous duty” and is self priming. These are two big advantages over the Dukes. Also the tolerances are well controlled.

 

I have ordered the Weldon pump with electronic controller from CJ Aviation. I will have the pump by the beginning of next week. Which is a much better delivery time than getting a Dukes.

 

 

Regards

Russell Steiner

N2AA, legacy

 

original posting.

Has anybody run into this problem?

Yesterday after flying into a field the Dukes of electric fuel pump would not run at all. I was forced to leave the aircraft at the field because I couldn't get the engine started.

The field elevation was 1300 feet and it was close to 90°. The density altitude was about 3000 feet for the day.

Today I returned to the field tools in hand to carry out a rescue. Surprisingly the electric fuel pump worked!? Why?

I was able to fly the aircraft home.

I concerned about flying the aircraft until this issue is diagnosed and resolved.