 Coil Failing?, New plug wires and now it runs rough? |
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| Neptune |
 Jul 8 2021, 08:04 AM
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#1
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Newbie  Group: Members Posts: 8 Joined: 29-June 21 From: Montana Member No.: 25,675 Region Association: Rocky Mountains  |
So I Have a 70 1.7L
It was stored for 4+ years Fuel has been replaced with fresh Had a miss so decided to replace the standard maintenance ignition components. Replaced the spark plugs and found hole 1 was "wet" and carbon-ed up. Ran much better with new plugs. Continued to replace cap and rotor, because I had the new parts and they were worn. Dizzy has the OG Pertronix Ignitor setup in it. Got new plug wires yesterday, put them on and now it runs like complete crap! I checked all the connections and they are all seated as they should be and its just garbage. So from what I can tell the issue isn't just in one hole and that brings me to suspecting the coil. It is old, I've had the car since '93 and I've never replaced it. Open to all thoughts and suggestions... |
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| euro911 |
Jul 8 2021, 04:07 PM
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,860 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California 
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When using a Pertronix module, the coil for a 4 cylinder motor should have a 3-ohms of resistance on the primary winding between the + & - terminals (with any other wires disconnected).
The video below shows how to test a coil, but it's primary is only 1.5-ohms, so don't wory about his readings. The secondary winding should read in the 10's of thousands of ohms ... +/- 20k ohms should be OK. Here's a troubleshooting guide from the Pertronix site ... http://www.pertronix.com.au/troubleshooting.html https://www.youtube.com/watch?v=/g2HT1oGl990 |
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Posts in this topic
Neptune Coil Failing? Jul 8 2021, 08:04 AM
Shivers "Got new plug wires yesterday, put them on an... Jul 8 2021, 08:25 AM
Neptune
"Got new plug wires yesterday, put them on a... Jul 8 2021, 08:30 AM Shivers You could narrow it down by putting the old wires ... Jul 8 2021, 08:36 AM Shivers You know how it is, just because it is new does no... Jul 8 2021, 08:42 AM Neptune
You know how it is, just because it is new does n... Jul 8 2021, 08:52 AM Shivers Usually when they are going bad, and not dead, the... Jul 8 2021, 08:58 AM Neptune
Usually when they are going bad, and not dead, th... Jul 8 2021, 12:39 PM rhodyguy Does the ignition require a specific type of plug ... Jul 8 2021, 09:06 AM Neptune
Does the ignition require a specific type of plug... Jul 8 2021, 12:39 PM bbrock
[quote name='rhodyguy' post='2929259' date='Jul 8... Jul 8 2021, 02:52 PM Neptune @Euro911 My coil tests right at 3 Ohms.
Put the... Jul 9 2021, 10:12 AM StarBear
[b]@[url=http://www.914world.com/bbs2/index.php?s... Jul 9 2021, 10:14 AM Neptune
[b]@[url=http://www.914world.com/bbs2/index.php?... Jul 9 2021, 10:26 AM |
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