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Some observations about fuel pump failer (long)
Posted by Vicsaero95 (more from Vicsaero95) on Wed, 31 May 2006 06:05:16
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I finally managed to finish fuel pump insert installation. I thought I will never put it back together! Big Thanks to board members for providing some pictures of the pump!
My Aero had progressively long start-ups,even longer with less than half a tank of gas until pump finally gave up (worked for 140K miles).It also felt little sluggish at low rpms. Now I know why- short line (2inch) that connects pressure outlet on the pump and three-way connector was bent in half providing half of the flow. It must have been bent during earlier pump installation, as taking it out I could only stretch it, not bend it.
I tried to install new "hard" fuel lines inside the pump, but gave up- couldn't bent new line as it needed to be. So I used rubber fuel line with ss clamps. Nice and easy! I also put new check valve (white one). Had a little accident- I assumed there was no pressure in the system anymore as I cranked the engine so many times trying to start it with failed pump. I was wrong- I cut the fuel line at the check valve and received a nice gasoline shower! So be aware! Installing new valve was a pain and at first I regreted my decision. But 1/4 inch flaring tool and steady pressure on the valve with bare hands did the trick after quite some time.
Aero feels a lot more quicker now and starts a lot faster.
Sorry for the long post.
Victor
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