Fuel Pump - Need Help, trying to fire up my barn find for first time...no fuel |
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Fuel Pump - Need Help, trying to fire up my barn find for first time...no fuel |
willimac |
Sep 14 2014, 07:48 PM
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#1
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Newbie Group: Members Posts: 14 Joined: 14-September 14 From: minnesota Member No.: 17,901 Region Association: None |
I'll try to keep the story short. I have a '74 1.8 L-jetronic 914 that I rescued from a barn in central Wisconsin almost 3 years ago. It had sat for over 20 years and become a palace for generations of barn mice, who built nests in every available cavity. Since then I've been sporadically cleaning it up, vacuuming mice and their nesting material, dropping the engine, dismantling and rebuilding it, cleaning up rust, shopping new parts (alternator, starter, stainless fuel lines, seals and gaskets) re-boring the cylinders, splicing chewed-through wiring, etc... finally got it put back together this week and am having trouble with the fuel delivery. The fuel pump does not turn on.
There is power to the double relay switch - terminal 86a checks out with the ignition switch on start, zeros out in "on" position , and AFM resistance checks out. The terminals at the fuel pump plug read zero volts unless the ignition is turned to "start" and the AFM is propped open - in which case it reads 7 - 8 volts. Don't know what to do---is there a way to test the pump to see if I need to replace it? Why would only 8 volts be making it to the terminals for the pump? Is this possibly a problem with the double relay switch? Any help would be greatly appreciated...I feel very close to bringing this one back from the dead. |
Chris Pincetich |
Sep 16 2014, 01:46 PM
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#2
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B-) Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California |
You could just wire the pump direct to the batter to test it. I've been driving like that for 2 weeks. It works, but is not a final solution.
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