Turn key, battery goes flat, ignition switch smoky. |
|
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. |
|
Turn key, battery goes flat, ignition switch smoky. |
jaredmcginness |
Nov 30 2020, 08:25 PM
Post
#1
|
... Group: Members Posts: 502 Joined: 12-June 19 From: Baltimore Member No.: 23,209 Region Association: MidAtlantic Region |
Me again.
It’s gonna be one problem post a day, until next years Octeener fest. (IMG:style_emoticons/default/idea.gif) So close here to firing this motor (in the car)(works fine outside of it) I’m thinking I have a short somewhere in the ignition, but everything seems to check out. Notes: Early car, early VW style switch. (After market) Turn key, ACC works fine, fuel pump relay clicks, all electrics work. 12v to coil, 12v to starter, power supply relay is good. Turn key to run, Nothing - power goes flat, as long as I hold the key down. Messing around a bit, tried again and the ignition switch/column starts smoking and the IGNS wires are warm. I believe once she smokes she’s done. I’ll buy a new switch tomorrow, but I’m trying to probe if this sounds like more than a switch. All my wiring matches the bowlsby pages. Battery is new. Switch was new (but probably Taiwan crap), new ground to battery and new ground strap. Cleaned every ground I can find. Does not even considering the idea of cranking. Starter cranks fine when manually jumped. Now that my smoke is out, queue the ‘Replacement Can’ comments. (IMG:style_emoticons/default/bye1.gif) |
jaredmcginness |
Dec 1 2020, 06:32 PM
Post
#2
|
... Group: Members Posts: 502 Joined: 12-June 19 From: Baltimore Member No.: 23,209 Region Association: MidAtlantic Region |
OK.
Guys, as usual I step back into my question threads, solved, with my head hanging low. I tested continuity on the relay board. 100% all around. Cleaned up the ground bundle really well... Nice to know. But still leaves me hanging. The new ignition switch arrives. (lucky to have found one in town (BaltAuto - $59) I start stripping down the column.... Low and behold..... (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23209-1606869157.1.jpg) You cannot make this crap up. I installed that switch over a year ago, actually one of the first things I did when I bought the car (P.O. Drilled the ignition out) Used a cheapo ebay switch - did not check my work. You can imagine my laugh - and face when I saw this. It could not be MORE grounded to the body, you can actually see through it. Feel free to flame me. What I have learned: -The half split method. -Every ground I can find is now clean. -Relay board is in good shape. -I've tested every relay I own. -I strongly dislike early switches. For the guys reading this down the road. Dont buy thee cheapo $22 switch. (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23209-1606869157.2.jpg) Here are the differences: Ebay (jbugs)($22) vsU.S. Standard #403 Ign. Switch ($59) Ebay is junk clamped, wires are loosely attached, each wire has broken strands. Fits loose in the column. US Standard #403 Soldered connection, Nice and tight fit in the column. The actual switch mechanism is tighter. Also... Made in Germany? (IMG:http://www.914world.com/bbs2/uploads_offsite/i.imgur.com-23209-1606869157.3.jpg) I will hang the old switch above my work bench, to remind me to think and check the easiest thing first. The root of the problem. Thank you for the help and responses. The car cranked, first try. |
Lo-Fi Version | Time is now: 8th June 2024 - 12:20 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 ... |