battery connection screw up |
|
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. |
|
battery connection screw up |
dt4 |
Jan 12 2020, 09:57 AM
Post
#1
|
Senior Member Group: Members Posts: 502 Joined: 26-May 19 From: England Member No.: 23,161 Region Association: England |
I have had the battery off the car whilst stripping paint and priming etc.... but thought it would be good to turn the engine over and run it for a while to keep things in good health etc.....
I had the battery on the bench to charge it and then put it back in the car but very stupidly put the negative lead to positive terminal and positive lead to negative terminal. I didnt turn the key as I was checking other things when I realised what I had done. I noticed that there was a smell of smoke coming from the alternator area and the tin on top of the engine in that area was warm so suspect there is a connector to the alternator under there? I put the terminals on the right way around and tried to start the engine but it appeared the battery had drained? I recharged the battery overnight but wouldnt start, again the battery seemed low on charge Apart from seemingly screwing the battery, is there other damage likely to have occured cheers David |
DickSteinkamp |
Jan 13 2020, 10:13 PM
Post
#2
|
Senior Member Group: Members Posts: 500 Joined: 27-February 17 From: Bellingham, WA Member No.: 20,876 Region Association: None |
Electricity is somewhat of a mystery to me so bear with me.
I don't understand how switching the + and - leads can cause a dead short and burn up wiring. I can understand how polarity sensitive devices (like a diode) might be harmed but why wiring? Also, there is so very little that gets power with the key in the off position. How would the radio (for example) be damaged? |
bbrock |
Jan 13 2020, 10:26 PM
Post
#3
|
914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains |
Electricity is somewhat of a mystery to me so bear with me. I don't understand how switching the + and - leads can cause a dead short and burn up wiring. I can understand how polarity sensitive devices (like a diode) might be harmed but why wiring? Also, there is so very little that gets power with the key in the off position. How would the radio (for example) be damaged? The way I see it, any circuit that is switched and the switch was off when the battery was connected backward should be fine. Any circuit that is always energized is subject to damage. Modern radios often have a switched and unswitched circuit and of course, any radio can be wired either switched or not. |
Lo-Fi Version | Time is now: 28th March 2024 - 04:04 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 ... |