Stumpfarming's 73' CJ5 Build - Page 83 - JeepForum.com
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post #1231 of 1365 Old 02-04-2021, 09:07 PM Thread Starter
Stumpfarming
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I didn’t know what I was missing! Simply put, that has to be the best upgrade I have made thus far! When I first built the Jeep, I thought I wanted to teach my daughters to drive it, but now I’m not so sure! Holy Crap! It’s got some go power! I still have some things to dial in and need to allow it some time to “self-learn,” but after just a short drive I am completely blown away. I’m gonna have to re-learn a few things and adjust some habits. It does not take much of the skinny pedal to feel the rear-end do what it’s designed to do. Not what I was expecting. I would have videoed the first drive, but I needed both hands.... haha! Here’s my first startup (after I realized I had a wire unplugged )

https://youtu.be/dh5QXoJu6v0

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post #1232 of 1365 Old 02-05-2021, 06:22 AM
daddyjeep87
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Good deal. Modern fuel injection certainly is a game changer.

87 YJ, 5.7/TH350/NP241/HP Dana44/9", Custom 4 link/ Radius Arms, ADS Nitrogen Shocks, 35" Cooper STT


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post #1233 of 1365 Old 02-05-2021, 06:57 AM
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Thatís awesome, Stump. Now itís time for a burnout video for sure!

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post #1234 of 1365 Old 02-05-2021, 05:39 PM
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Very cool build. Id love to see and hear it run!
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post #1235 of 1365 Old 02-06-2021, 09:29 PM Thread Starter
Stumpfarming
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Bad news. Took the Jeep for a longer drive today, ironically, to the auto parts store. Apparently I had a loose distributor cap. It didn’t end well.... :
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post #1236 of 1365 Old 02-06-2021, 11:45 PM
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Sorry you had a little setback there, but watching your video, I was also shocked at how incredibly smooth the idle was when you first started it up!

Nice work!

Now you have enough power to break some stuff...

Michael
Western Washington
'66 CJ5 under construction
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post #1237 of 1365 Old 02-07-2021, 12:20 AM Thread Starter
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Originally Posted by GraySkies View Post
Sorry you had a little setback there, but watching your video, I was also shocked at how incredibly smooth the idle was when you first started it up!

Nice work!

Now you have enough power to break some stuff... [IMG class=inlineimg]/forum/images/JeepForum_2016/smilies/tango_face_smile_big.png[/IMG]
Yep, now I am really glad that I did the axle upgrade. Can see how things might break easier without that pedal lag. [IMG class=inlineimg]/forum/images/JeepForum_2016/smilies/tango_face_grin.png[/IMG]

I must have bumped the distributor when I was installing the throttle body and never noticed. It’s an MSD HEI that has those “L” hooks rather than screws holding the cap on. Really bummed. Had just gotten done setting the idle and was driving it a bit to “learn” before playing some with it. Drove to the parts store to get a vent cap for the valve cover. When I came out it wouldn’t start. Rotor spin must have kept the cap balanced while I drove.

I got a new cap & rotor, then went back again for a new coil. Now gotta go back again for new interior module (basically rebuilding entire distributor), which I hope will fix the problem. Coil smelled like burnt plastic when we pulled it (and had a burnt ooze out the side). No RPM signal is getting to the tach or the Sniper computer. Tested all the circuits and they’re good, so has to be in the distributor. Thankful to my neighbor who is a diesel mechanic for helping me diagnose (even though it’s been 20 years since he has worked on a gas motor) He understands the electrical and how to troubleshoot it better than me. Have I mentioned how much I am learning on this project......
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post #1238 of 1365 Old 02-08-2021, 12:02 AM Thread Starter
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Very cool build. Id love to see and hear it run!
Thanks! Yeah, I really want to see and hear it run too!

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post #1239 of 1365 Old 02-09-2021, 09:24 PM Thread Starter
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I am at a complete loss of what to do... I have no spark when I crank the motor (checked at the plugs). It’s an MSD Streetfire HEI Distributor. I have replaced the rotor, cap, coil, and inside module. Still no spark. What else could it be? About ready to replace the entire distributor (I’ve already spent enough money to have done that) but was trying to avoid stabbing a new one and resetting the timing.

Any ideas? Am I missing something (Clearly I am.....)?

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post #1240 of 1365 Old 02-10-2021, 06:50 AM
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Any chance you fried the Sniper controller when you fried the distributor?

Yes, I know that would be bad.

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post #1241 of 1365 Old 02-10-2021, 11:05 AM Thread Starter
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Any chance you fried the Sniper controller when you fried the distributor?

Yes, I know that would be bad.
I called Holley. The only thing the Sniper computer does is receive an RPM signal from the distributor, then adjust fuel/ratio from that. He said it was highly unlikely that the Sniper computer would be damaged.

Given that the distributor is driven by the camshaft, the rotor spins (I checked), and I am not getting spark at the plugs, it has got to be the distributor. The only thing I have not replaced is the pick-up that the
Module plugs into. Will also verify that I got the right coil. Next step
is to buy a new distributor.......

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post #1242 of 1365 Old 02-10-2021, 04:07 PM Thread Starter
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I called Holley. The only thing the Sniper computer does is receive an RPM signal from the distributor, then adjust fuel/ratio from that. He said it was highly unlikely that the Sniper computer would be damaged.

Given that the distributor is driven by the camshaft, the rotor spins (I checked), and I am not getting spark at the plugs, it has got to be the distributor. The only thing I have not replaced is the pick-up that the
Module plugs into. Will also verify that I got the right coil. Next step
is to buy a new distributor.......
New Distributor Purchased. It was only $169.00. I've already spent over $170 chasing parts. Time to return a few if I can. Fingers crossed.....
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post #1243 of 1365 Old 02-10-2021, 10:39 PM Thread Starter
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I just spent my evening replumbing the fuel return system and replacing the distributor. Still no spark. Just doesn’t make sense.....

Then a thought came to me......I unplugged the Sniper from the Tach output on the distributor and reconnected my old tachometer. This completely separates the sniper system from the ignition system. I turned the key AND IT FIRED!

I will be calling Holley in the morning.

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post #1244 of 1365 Old 02-11-2021, 06:18 AM
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Well I'm glad you are making progress anyway.

87 YJ, 5.7/TH350/NP241/HP Dana44/9", Custom 4 link/ Radius Arms, ADS Nitrogen Shocks, 35" Cooper STT


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post #1245 of 1365 Old 02-11-2021, 09:46 AM Thread Starter
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Well I'm glad you are making progress anyway.
Not so sure. I was on phone will Holley for 45 minutes back and forth between MSD and Sniper techs. MSD Tech thought it was a Sniper issue. Sniper tech said he’d have to call me back. 2 hours later, he just called and said he thinks it’s a distributor tach wire issue. I had to go to work, so will have to call them back when I get home. Having a hard time swallowing the idea that it’s a distributor problem when I have the same problem (no spark) with two different distributors; however, when I disconnect the Sniper system, the primary problem goes away and the engine fires.

But I’m learning, and it’s completely possible that I’m wrong.....

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