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 |
dt4 |
Feb 12 2020, 01:36 AM
Post
#2
|
Senior Member Group: Members Posts: 502 Joined: 26-May 19 From: England Member No.: 23,161 Region Association: England |
I took a photo from ebay, I am guessing the negative is the terminal that is not the positive (IMG:style_emoticons/default/biggrin.gif) |
Spoke |
Feb 12 2020, 12:36 PM
Post
#3
|
Jerry Group: Members Posts: 6,972 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
I took a photo from ebay, I am guessing the negative is the terminal that is not the positive (IMG:style_emoticons/default/biggrin.gif) The lug closest to the starter body is the positive power for the actual starter motor. The lug towards the top of the picture is the connection to the battery. The bendix (small cylinder above the starter motor) is a contactor which connects the 2 lugs together electrically to turn the starter motor. The bendix also pushes out the gear which engages the flywheel so the starter motor will turn the flywheel. The small electrical tab on the bendix is the power (from the ignition switch) to power the bendix. Personally I wouldn't try to connect any wires or jumper cables to the starter. I would inspect the wires and if anything, measure the voltage on the lug from the battery when the starter is engaged. Once you have the voltage at the starter, do the same measurement at the battery measuring from the positive terminal CLAMP and at the actual battery terminal. This will test the clamp and wire to make sure it is electrically sound. Also check the ground strap on the battery to chassis AND the ground strap on the transmission. All cables should be clean and secure. |
Lo-Fi Version | Time is now: 19th April 2024 - 08:12 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 ... |