![]() |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
![]() |
willimac |
![]()
Post
#1
|
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. ![]() |
![]() ![]() |
willimac |
![]()
Post
#2
|
Newbie ![]() Group: Members Posts: 14 Joined: 14-September 14 From: minnesota Member No.: 17,901 Region Association: None ![]() |
UPDATE:
after much effort and frustration (mor on that later), I finally got the fuel pump out of the car - tried the bench test wiring the pump directly to the battery - nothing. took the pump apart per DD's instructions, and one of the little rollers was stuck in it's notch. I gently took a pliers to the rotor and pried it loose. applied voltage to the pump and viola! the pump runs! I reassembled the pump, and tightened the 4 screws -m tested again - nothing. Loosen the screws and the pump runs. I'll soak the components in some solvent to clean them up really well, and hopefully it'll work! The downside is that I had to cut the bolts that secured the pump to the hellhole (wish I hadn't been lazy when the engine was out of the car) and I don't trust the metal that the pump was affixed to (esp the bottom bolt - compromised by hellhole rust.) I know I SHOULD take everything apart again and put the frame on a rotisserie and do it really RIGHT, but I really want to get this thing rolling under it's own power, and worry about the big restoration later. So - Question is this: if the pump cant currently go back to where it was placed at the factory, what's the next best option? would there be a problem with attaching it to the firewall (aside from it getting in the way next time I want to drop the engine? Where should I put the fuel pump if I cant get it to work under the battery tray? |
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 15th June 2024 - 08:55 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |