 Troubleshooting Ignition system, Jacobs Electronics |
|
|
|
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. |
|
|
| TroyVB |
 May 1 2019, 01:45 PM
Post
#1
|
|
Newbie  Group: Members Posts: 17 Joined: 21-July 16 From: Northwest IA Member No.: 20,214 Region Association: None  |
I have a Jacobs Electronics ignition system in my '73 1.7. Backed it out of the garage and left it idling. Ran in to get my sunglasses and when I came back the engine had stopped. I turned it over and got a few backfires but it would not catch and run. Now I don't have any spark. Engine turns over fine but the LEDs on the Jacobs box are not lit and I can't remember if they were ever on when the car was not running. I have 12v to the unit and the antitheft wire has a good ground.
I have never worked on an electronic ignition system like this. Can someone help me with a troubleshooting procedure? |
   |
 
|
  |
Replies
| TroyVB |
May 2 2019, 06:18 AM
Post
#2
|
|
Newbie Group: Members Posts: 17 Joined: 21-July 16 From: Northwest IA Member No.: 20,214 Region Association: None |
Yep, I have done the Google search as well as a search on this site. I will try to troubleshoot first, but if I need to replace what are your ignition system recommendations for a '73 1.7 with Weber carbs? Not sure why the PO installed the Jacobs system or when.
Thanks for the help. |
|
|
|
| Mark Henry |
May 2 2019, 06:37 AM
Post
#3
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(TroyVB @ May 2 2019, 08:18 AM)  Yep, I have done the Google search as well as a search on this site. I will try to troubleshoot first, but if I need to replace what are your ignition system recommendations for a '73 1.7 with Weber carbs? Not sure why the PO installed the Jacobs system or when. Thanks for the help. It's a CDI like a MSD, hotter spark, likely bought because the PO had a miss or just thought it could help. MSD (mr. gasket) owns (owned?) Jacobs, Mallory and a few others, they shut down the Jacobs line, mallory is also in the process of being shuttered. |
|
|
|
Posts in this topic
TroyVB Troubleshooting Ignition system May 1 2019, 01:45 PM
Mark Henry You'll have to google search.
You might be ho... May 1 2019, 08:41 PM injunmort I have one of these ignitions in my most recent pr... May 3 2019, 05:20 AM
Mark Henry
I have one of these ignitions in my most recent p... May 3 2019, 05:56 AM Tbrown4x4 I have the Ignition book by Jacobs you can have. N... May 3 2019, 07:06 AM TroyVB Thanks for the help. I am thinking of switching to... May 7 2019, 12:40 PM porschetub Old system as mentioned but for the day it was the... May 7 2019, 11:29 PM Tbrown4x4 Agreed. I'm very happy with my Pertronix. I co... May 8 2019, 04:52 AM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 11th May 2025 - 12:22 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.