Help with dizzy ID

[Trnelson]

I’ve inherited this electronic ignition system, it was working fine before I tore the engine down and assume it will be ok when I fire it back up. I’d like to find the appropriate cap and rotor for the short term AND know exactly what I have. To this uneducated shade tree mechanic ignition systems are the ultimate form of black voodoo magic. If anyone recognizes these parts please chime in. I’d like to upgrade to the 123 but I think some ZTherapy carbs may predicate the dizzy... short term 

Please let me know if pics of other parts would be helpful. 
 

thanks

 

Tom

Edited January 26, 2021 by Trnelson

[Trnelson]

I didn’t readily see any identifying numbers on the coil. 

[heyitsrama]

Is it just me or are the points missing from the dizzy? Is that a magnetic-pickup upgrade?

These cap/rotors should work https://www.rockauto.com/en/catalog/nissan,1972,240z,2.4l+l6,1209169,ignition,distributor+rotor,7136

As the distributor looks like a points type.

Here is a manual for the XR3000 https://static.summitracing.com/global/images/instructions/xr700 instructions.pdf

That crane box basically senses the magnetic-pickup on the distributor, and tells the coil when to send the spark through. Its considered to be an upgrade to the points system.

[Trnelson]

I know next to nothing about distributors so I can’t fully answer your question. I can tell that the points have been deleted but I honestly have no idea what they were replaced with. Do you think this is something I should try to work with or think about upgrading/replacing all of the components?  Maybe cap and rotor for now and run her till she lays down?  
Thanks for the links, I’ll check them out. 

[heyitsrama]

yeah i think a new cap/rotor should get you on the road for now.

[mayolives]

What are you working on? What year is your car?

 

[Trnelson]

240 10/70 build date. It was upgraded at some point and I’m trying to understand exactly what is what 

[7tooZ]

@TrnelsonTom I have ran this system on my cars for years. I use the stock cap and rotor. once you get it set you avoid the continual point wear and needed adjustment.  What issues are you having?

[Trnelson]

No issues, I’ve spent the last 2 months refreshing the engine and I’m just looking at everything as I put it back together to make sure it’s in good condition or replace parts as needed. It ran fine before I pulled it so I’ve just put a new cap and rotor on it as part of the refresh. Glad to hear that you’ve had good luck with this setup. What coil do you run on yours?

Thanks

[7tooZ]

I have a crane coil that I purchased at the same time. Is there any indication of what yours is? Doesn’t look stock so I would think you should be good to use it again. This system sEnds an improved spark so a good set of plug wires is always good.  
if you had the oil pump off make sure you get it back to 11:20 at TDC.  With the rotor on #1 you can move the sensor until the red light comes on. If you have moved it try it first. 
 

let me know if you want photos. 
don

[Trnelson]

Thank you for the information, I had no idea that there was a light!  I’m finished with the engine but not ready to drop it back in yet. I’ve got a couple weeks worth of items to take care of while the engine and trans are out.  I may get it touch when it’s time to fire it up.  In the mean time I’ll dig through some old receipts to see if there is anything on the coil. 
 

Tom

Edited February 7, 2021 by Trnelson

[Zed Head]

4 hours ago, Trnelson said:

Thank you for the information, I had no idea that there was a light!  

It's all right here in Post #3.  The XR3000 instructions are included.  Summit chose a poor file name.

On 1/26/2021 at 4:20 PM, heyitsrama said:

Here is a manual for the XR3000 https://static.summitracing.com/global/images/instructions/xr700 instructions.pdf