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Old 07-14-2021, 08:39 PM   #1
Doug Linden
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Default Nu-Rex Electronic Ignition Help

I stopped by to help a friend start his Model A after sitting all winter. His attempt to start was unsuccessful. He said he had gas but no spark. I figure the points might be corroded but when I took the distributor cap off I saw the Nu-rex electronic ignition. When he bought the Model A no paper work on the Nu-rex was included.
Does anyone have the instructions and wiring diagram kicking around they could scan and post.
Hopefully it's just a bad connection because I talked to Nu-rex this morning and they don't manufacture this unit any longer as they have no access to the modules they used.
TIA
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Old 07-14-2021, 09:47 PM   #2
alexiskai
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Default Re: Nu-Rex Electronic Ignition Help

Best source I could find:

https://web.archive.org/web/20030820...chive.asp~main
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Old 07-14-2021, 10:09 PM   #3
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Default Re: Nu-Rex Electronic Ignition Help

https://fsignitions.com/FSI_DISTRIBUTOR.html
Links to the installation and set up are toward the bottom of the page.
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Old 07-14-2021, 10:17 PM   #4
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Default Re: Nu-Rex Electronic Ignition Help

Here is the problem. If you left the ignition key on for an extended period of time while you were troubleshooting, you may have killed the ignition module. Anyway, FSI Ignition is the current builder of these systems. They are in Oklahoma.
As far as no spark, make sure the rotor is rotating, the electronic ignition has a fuse between the battery connection and the system. The ignitor pickup is replaceable and available from FSI if you don't have a spare.
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Old 07-15-2021, 01:24 PM   #5
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Default Re: Nu-Rex Electronic Ignition Help

The FSI kit is totally different from the NUREX kit and parts are not interchangeable. The NUREX kits have been off the market for about 5-10 years. try calling NUREX to see if Bob has any leftover parts.
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Old 07-15-2021, 01:59 PM   #6
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I would probably just convert back to points.
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Old 07-15-2021, 02:16 PM   #7
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Default Re: Nu-Rex Electronic Ignition Help

Quote:
Originally Posted by 31Tudor View Post
I would probably just convert back to points.
X2. I agree with Tudor that it is the quickest way to get it started.

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Old 07-15-2021, 07:17 PM   #8
Marshall V. Daut
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Default Re: Nu-Rex Electronic Ignition Help

Doug Linden -
Have you checked your "Private Messages" in the top right corner of this webpage?
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Old 07-15-2021, 08:30 PM   #9
Doug Linden
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Default Re: Nu-Rex Electronic Ignition Help

Thanks for all the suggestions.
alexiskai the link to the wiring diagram will be most helpful, thank you.
I did talk to Bob at Nu-rex and he did offer a few suggestions but also indicated that he had no spare parts for this unit.
I am aware of the problem of leaving the key on, but I have know knowledge if that happened or not. If the module turns out to be toast that will be all she wrote on this electronic unit. In the mean time my friend is preparing a stock distributor so he can back on the road.
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Old 07-15-2021, 09:39 PM   #10
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Default Re: Nu-Rex Electronic Ignition Help

My apologies, I thought the FSI kit was just the latest version of the same electronic ignition module.
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Old 07-16-2021, 07:01 AM   #11
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Default Re: Nu-Rex Electronic Ignition Help

My car came with electronic ignition and automatic advance. I converted it back to points but using the modern V8 points and condensor and manual advance. The car runs better and I like being able to manually adjust the timing. I have had problems in the past with electronic ignition and also problems with points so the choice is really up to the owner. In my case the modern points and condensor are very reliable.
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Old 07-16-2021, 10:58 AM   #12
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Default Re: Nu-Rex Electronic Ignition Help

GeneBob: the fallacy of leaving the ignition switch on for an extended period of time will burn out the FSI modules is not true.
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Old 07-16-2021, 03:06 PM   #13
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Default Re: Nu-Rex Electronic Ignition Help

59 degrees C

Last edited by Benson; 07-20-2021 at 12:20 PM.
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Old 07-16-2021, 03:17 PM   #14
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it was grounded

private message sent

Last edited by Benson; 07-20-2021 at 12:21 PM.
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Old 07-17-2021, 06:04 AM   #15
Dave in MN
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Default Re: Nu-Rex Electronic Ignition Help

All of the electronic module ignition system problems I have worked on were related to a weak ground to the module. Locate and clean this connection.
Good Day!
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Old 07-17-2021, 09:17 PM   #16
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Default Re: Nu-Rex Electronic Ignition Help

Quote:
Originally Posted by 31Tudor View Post
I would probably just convert back to points.
I agree.
They work well, and if they ever fail, they are easy to check and fix.
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Old 07-18-2021, 11:01 AM   #17
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Default Re: Nu-Rex Electronic Ignition Help

Problem turned out to be that several ground wires from top of Transmission OR transfer case and the body were not hooked up when transfer case was rebuilt.
end quote



Thats been a big problem over the years. Once this was found I hope the shops were made to pay for subsequent repairs.
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Old 07-18-2021, 11:37 AM   #18
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Default Re: Nu-Rex Electronic Ignition Help

Quote:
Originally Posted by nkaminar View Post
My car came with electronic ignition and automatic advance. I converted it back to points but using the modern V8 points and condensor and manual advance. The car runs better and I like being able to manually adjust the timing. I have had problems in the past with electronic ignition and also problems with points so the choice is really up to the owner. In my case the modern points and condensor are very reliable.
I have heard about the electronic ignition issues from Petronix for years, and I'm with you. The 1957 and up points are the way to go. If in doubt, you can change one roadside in just a jiffy. They are also easy to get to on the engine. For me I keep the point block lubed. Sometimes you can simply take a toothpick and pick up the excess from what is already there, and put it back where it belongs.
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Old 07-19-2021, 03:59 AM   #19
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Default Re: Nu-Rex Electronic Ignition Help

I had a similar issue when I first bought my A 8 years ago. Whilst checking for a spark and not knowing the electronic unit was fitted I blew the module (my bad) maybe that's what has happened?
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Old 07-19-2021, 09:58 AM   #20
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Default Re: Nu-Rex Electronic Ignition Help

geneva 1

Last edited by Benson; 07-20-2021 at 12:18 PM.
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