D.U.I. Distributor

I want to post a pic on this thread but it says enter url when I hit insert image. Any thoughts on how to get it to just browse to my pics for the upload? It use to do that for me.

 

You need to host the pic somewhere like Photobucket. I believe we have a thread somewhere that tells you how to do that. Check the other forums.

 

Lets see if I have this right.

http://s1010.photobucket.com/albums/af228/fordfseries/Jeep seat brackets/

 

It works!

Definitely a Motorcraft Duraspark.

JMO - you're just going sideways if you replace this distributor with the HEI distributor. Both distributors work the same way electrically - you can drive the HEI module with a Duraspark distributor, and vice-versa. The HEI has a hotter coil to begin with, but you can substitute any coil you want for the Jeep factory coil. You can use a big cap and HEI-style wires with the Duraspark too - search for "TFI upgrade."

 

I'm using the HEI module along with a TFI coil and Duraspark distributor with the larger cap. From some of the write-ups I've seen it's supposed to have a higher voltage than the GM HEI combo, for whatever the difference makes.

 

So any one care to speculate on sudden engine stall outs while driving. Pull over hit the key and restart, with a couple of additional stall outs before it will stay running? Something that will cause this intermittent condition? Fuel seems to be fine there just isn't a whole lot to these these basic Cj's. I appreciate your feed back.

 

Just shooting from the hip, but I'd also look at the circuit from the voltage source through the ignition key to the coil. That would certainly give those same symptoms if there was an intermittent connection. BTW, did you ever change out the Motorcraft module that you suspected in your original post?

 

I did not change the ignition module based on another comment that made sense that I really havn't isolated the problem. I am at that it's either spark or gas and the fuel seems to be ok. I will look at the wiring as I put in the aftermarket wire system it could have a loose connection.

 

I had a similar problem of intermittently cutting out then running for a while after restarting. In my case it was a small piece of some sort of plastic film, very small, that would get sucked over to one main jet and block it. When the engine shut off, the junk would move away from the jet, since the flow through the jet had stopped, and it would run normally again, until it once more blocked the jet. It was almost invisible without careful examination .The difference between our problems was that my engine would idle OK, but had problems running at any point above idle. If you've looked in your float bowl and have not seen any debris, then that's probably not your problem.

 

Checking for bad wiring is a good idea. The connector at the distibutor is a well-known failure point. Likely the plastic will be old and brittle, and the plug will come apart when you try to separate it. Or else it will be full of green corrosion. Very common. Depending on your wiring skills, you can cut out the Ford connector and replace it with a Weatherpack style connection, or you can get a replacement plug from Napa (supposedly the plug/socket is available). You will get a new distributor-side plug if you replace the sensor in the distributor.

JMO - an extra ignition module is a good spare to carry on the trail. You can get a cheap replacement module for less than $20. I would not depend on the cheap module for everyday driving, but it would be ok for testing whether your current module is broken.

If the module is at fault, You're going to either have to pony up for a quality replacement, or go the "stealth HEI" route that I linked to above.

 

:iagree:

Had the very same problem a few years ago. The Jeep would cut out, couldn't get it started, you walk around the vehicle checking this or shaking that...then plamo, it starts again. The natural tendency is to think about fuel delivery, loose wire and the like. After scratching all the hair off my head and the help of this forum, it turned out to be the ignition module. They are very cheap and proned to problems as mentioned above and it wouldn't hurt to have one or two laying around. Very easy to swap out on the trail and will save you a HUGE hastle....not to mention get you home.

Finally, I just swapped into a domestic HEI system and haven't had an issues since.

 

What may I ask was your choice for a replacement system?
Thanks ~ Maverick

 

I have read that some claim the dui gear can eat the cam gear any thoughts? Did yours come with a tach hookup?

Maverick

 

Thanks, Where is it made?

 

Thats a good question. When I make it out to the garage on Friday Ill see if I can find any writing on it indicating the where. I see the main office is in Memphis, but dont know if thats where they are made though.