Slowly back to life |
|
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. |
|
Slowly back to life |
SKL1 |
Jun 9 2014, 09:05 PM
Post
#1
|
Senior Member Group: Members Posts: 1,602 Joined: 19-February 11 From: north Scottsdale Member No.: 12,732 Region Association: Upper MidWest |
Slowly bringing my '73 2.0 back to life after a long restoration process.
Wired the relay to front headlights with new H4 bulbs, new J West fuse panel, etc. Have the factory shop manuals with wiring diagrams, though being colourblind doesn't help much even with my reading glasses (IMG:style_emoticons/default/sad.gif) Hooked up the battery last night and no electrical fires, but all sorts of intereting findings... rear signals flash the back up lights (hopefully easy to redo) , but the parking brake light flashes continuously if ignition is on, the headlights don't work at all, and don't park correctly, gauge lighting doesn't work on any dash or gauge panel gauges, and the list goes on. Any decent direction as what to tackle first???? God, I HATE electrical issues!!!!!! (at least no fires or fried wires...yet- had that 40 some one years ago when rewiring my fog lights for a flasher on the silver '71- back then we actually flashed lights when we saw another Porsche. Of course, many 911 would ignore me, but that's another story...) |
ovilla |
Jun 9 2014, 09:29 PM
Post
#2
|
Member Group: Members Posts: 84 Joined: 25-February 05 From: Plainfield, IL Member No.: 3,660 |
Unplug and clean all grounds. Basically every brown wire in the entire car should be disconnected, scraped with a brush (on both the spade connector and the male metal blade that protrudes from the chassis). Also, make sure you have a good ground strap on the battery and a fresh flexible copper ground wire on the transmission (this alone will solve your rear lights issue).
Then I'd replace all fuses and break out a voltmeter and just focus on one thing at a time. Oh, for the light motors, swap out the round black relays with a known round relay that works. I have one brand new round relay that I like to use for testing since it then becomes the one thing I can quickly rule out. Later on, you can always test your round relays by swapping them out with you pop up light motors. Just be patient and don't try to fix the whole car at once. Focus on one little section by doing a continuity test on each wire to make sure it's not so brittle that it broke somewhere in the middle. Also unplug, clean, and reconnect as much stuff as you can. Best of luck to you! Just keep telling yourself that you are saving $100's by attempting this all yourself! |
ovilla |
Jun 9 2014, 09:30 PM
Post
#3
|
Member Group: Members Posts: 84 Joined: 25-February 05 From: Plainfield, IL Member No.: 3,660 |
Make sure you have 12 volts at the battery. The headlight motors don't really work right if the voltage is too low.
|
PlantMan |
Jun 9 2014, 10:47 PM
Post
#4
|
Member Group: Members Posts: 435 Joined: 14-May 14 From: Mission Viejo Member No.: 17,352 Region Association: Southern California |
Slowly bringing my '73 2.0 back to life after a long restoration process. Wired the relay to front headlights with new H4 bulbs, new J West fuse panel, etc. Have the factory shop manuals with wiring diagrams, though being colourblind doesn't help much even with my reading glasses (IMG:style_emoticons/default/sad.gif) Hooked up the battery last night and no electrical fires, but all sorts of intereting findings... rear signals flash the back up lights (hopefully easy to redo) , but the parking brake light flashes continuously if ignition is on, the headlights don't work at all, and don't park correctly, gauge lighting doesn't work on any dash or gauge panel gauges, and the list goes on. Any decent direction as what to tackle first???? God, I HATE electrical issues!!!!!! (at least no fires or fried wires...yet- had that 40 some one years ago when rewiring my fog lights for a flasher on the silver '71- back then we actually flashed lights when we saw another Porsche. Of course, many 911 would ignore me, but that's another story...) SKL1 Been following the saga on Rennlist. Love the story and enjoy watching the progress! Wish I could help with the electrical issues.... You will get it! Thanks. |
SKL1 |
Jun 10 2014, 12:49 PM
Post
#5
|
Senior Member Group: Members Posts: 1,602 Joined: 19-February 11 From: north Scottsdale Member No.: 12,732 Region Association: Upper MidWest |
Good suggestions ovilla- have the voltmeter ready!!
off to the garage... |
Jacco |
Jun 10 2014, 02:54 PM
Post
#6
|
Designated Dutchman Group: Members Posts: 194 Joined: 23-February 04 From: the Netherlands Member No.: 1,703 Region Association: Europe |
The blinking hand brake light is probably the switch in your master brake cylinder that needs a reset. This switch triggers at a sudden drop in brake pressure in the system. There's a PP tech article on this iirc.
For parking of the head lamps, does the motor park? If so the actuating arm is misaligned to the motor. No light at the front could be a relay thing. Don't let the electrics get to you (IMG:style_emoticons/default/smile.gif) in the end it is straigth forward, taking it step by step one fuse/relay at a time works good. Good luck Jacco |
SKL1 |
Jun 10 2014, 07:19 PM
Post
#7
|
Senior Member Group: Members Posts: 1,602 Joined: 19-February 11 From: north Scottsdale Member No.: 12,732 Region Association: Upper MidWest |
Started with rear tailights- confusing to say the least as the numbers on the wiring diagram and the numbers on the housing itself don't all correspond.
Wiring diagram for driver's side, L to R: 49L, 58, 54. Numbers on housing: RF 54 58 31 L Luckily have the '71 sitting next to it, guess I'll loosen one of the housings and see how it's wired as those lights work!! Also starting clean all the connections, again... |
Lo-Fi Version | Time is now: 18th May 2024 - 11:13 AM |
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 ... |