Be very careful. An “empty” gas tank is probably full of explosive gas fumes, so avoid any ignition source and air it out if possible.
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Will do.
What you said came into play with the TWA 800 disaster. The center tank was nearly empty when the explosion occurred. The NTSB cautioned airlines from flying in that condition.
I used to fly 727’s years ago. The B727 had a quirk in that you were supposed to have, in tank 2 (center tank) no LESS than 2000 lbs as compared to tanks number 1 and 3. It was the flight engineer’s job to maintain fuel balance.
Is that one of the Boeings that had 3 engines . . . ?
And did it have early turbofans . . . ?
Yes, the B727 had three engines. It did have turbfan engines -Pratt & Whitney JT8D series, with some variations, the “Dash 7” engines, the “Dash 15”, and the Dash 17R, among others. These were not “high bypass” engines like you find on today’s planes. The JT8D-17R had a neat little feature, in that if one engine lost thrust or quit, the remaining engines put out extra power.
Anyway, I finished with the fuel pump with my Celica. My local NAPA place didn’t have the Bosch strainer, so I tried Advance Auto Parts. They had a Delphi brand, which more closely resembled the OEM. Car works again.
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Thanks for the info on the B727 
Have you ever posted pictures on Cartalk of your 1979 Celica . . . ?
Here’s one photo. I haven’t taken too many pictures of the car, other than mechanicals for reference.!
Yes, that’s my shadow in the picture.
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That’s a great looking car! 
I’ve always liked that, a real clean style, not overdone at all. Nice!