No spark

Tiny
OZZIE62G
  • MEMBER
Happy Thanksgiving hope you have the best family. So this morning when out to the CJ check the fuel delivery it's a very good pump is working fine it wants to start but it's it it almost seems like it's off time and I don't understand because I have the top center I've checked the timing thousands of times to make sure it's correct it is. Anyway I did the boat test to the coil I'm going to head and send you some pictures what I did and the fuel delivery set up that I have just temporarily to get started hope you have a great Thanksgiving and I keep you iinformed.
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
Sorry---i hunt and peck pretty darn slow----i've sorted my pics, but there are hundreds in folders, it takes me time to find them

Just tryin' to give you info in the best order I can without writing an entire manual

When I get the results of all of your testing---we'll get more and more in depth

If you are lost on what i'm shovelling---please ask I want you to do it right!

I do link a lot to to stuff i've already written

How are we doing so far?

The medic
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
Loosen the distributor clamp so that the distributor is still held down with some pressure but will move and stay put, if you turn it with your hand.

Have a pal crank on it while you ease it in either direction

You can do all of this all by yourself if you turn the key to "on" and have a remote starter switch to use (see my pic)

Again, the two teaspoons of fuel into the carb barrel might help

The medic
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
JAYBOT
  • MEMBER
I have been wondering about the ICM. I do not have an advanced auto parts around here. So I will have check to see who does testing. Have to wait till tomorrow since the places around here are closed. What about a weak coil? Is it a go or no go thing? I do have a timing light and so on for testing the timing.
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
Midnight!

Tired!

1st pic above is incorrect!

(i got lost and carried away in "paint")

Here's the correction (white block on the top left side) in the new corrected pic below!

The medic
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
This is where I become your bestus buddy!

We're gonna test the coil with the help of morris

I have the "1979" paper manual that was left in my '79 cj 5, by mistake when I bought it in 1983.I did not take care of it, when I realized it's value, I started treating it like it was a sacred scroll

Using the drop-downs, install: cj 7

. Then 1980 (76-78 ign is different than yours [prestolite].79-80 is the same as yours [motorcraft])

They did not replicate the manuals, so "1980" is gonna be you, when you look stuff up!

Now then, last thing."Power plant-ignition system (1,961kb)". You have just entered "the book"!

Scroll a bit

(these pages can be printed)

You will run into diagnostic chartsthey are like flow charts

The "specs" you need for the tests. Are further on. On page "1g-18"

They also assume that your "mechanicals" are in order when you begin.(Stuff I was trying to pull out of you. Like distributor in right, timing gears right? Modifications other than factory?). That stuff is found in here too, you just gotta have a librarian (me) guide you to them, at the right times!

Forget trying to test the module yourself, you can't do it all--at once, as fast as the parts store tester can over and over, you will be fooled by the test in the manual

In fact, you'd be better off buying one---if it was not the problem, you would have a spare

I keep a spare coil, ignition module, and a fuel pump in my console. So far, 2 other cjs were glad. One needed a fuel pump, the other an ignition module!

I have added lots of storage---made lots of stuff "user friendlier" (like roller and spherical plane bearings incorporated into my clutch linkages (never have another linkage problem again!). Many other things too!)----I pretty much carry a condensed tool shed w/ me.I can show you a lot of this, if you are interested

Last two pics----me just prior to ranger school w/ my '79 (#2 of 7 cjs). My mannequin on patrol in my present day man-cave

Keep me posted---i really hope I have not been replaced by a book!

The medic
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
OZZIE62G
  • MEMBER
Yea I was doing that has well? Nothing. I think I'm going for the HEI Dist and see how it gos.
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
JAYBOT
  • MEMBER
It fired up!
Turns out the coil was bad. Thank you for pointing me in the right direction with the testing of it. Turns out it was weak, very weak.
Now I just need to finish the vacuum lines and time it. Thank you so much for all your time and energy!
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
OZZIE62G
  • MEMBER
You know now that I think about it, on one of your reply you mention fuel Regulator I'm going to test the pressure of the inlet. I'll let you know.
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
I really did not think it would be coil failure

It's been very seldom I have seen a "coil" go bad in a cj

I have seen people put the wrong one in many times

95% of the time. It's the ignition module that messes up!

Originally my '77 had a prestolite ignition system----very crappy!---It was not just "one problem", it had several. Kept me on my toes trying to figure them out. From worst to better

1) the wiring to the distributor was. Solid copper wire (guessing 18 gauge) encased in what looked like the flat telephone wire that you plug in the wall. But smaller!

Even strapped decently---eventually the copper wire(s) would break from shaking. The lifetime warranty was always honored when I would take 'em back. The time involved, the mega inconvenience, or breakdown was not covered

2) the vacuum rubber diaphragm/ bellows/ bladders (internals for the vacuum advance. What ever you wanna call 'em, would bust/ burst/ tear/ break (unseen/unknown) the vacuum advance would be disabled and a vacuum leak on top of that!

3) the sliding plastic inside the distributor for the vacuum advance would "wear" and jam. Resulting in full/ some/ no advance (still sorta not ez to detect the problems the jeep exhibited)

4) the "mechanical advance spring" breaks---resulting in being fully advanced all of the time. Upon seeing the "advance" with the timing light (i figured the timing was off. So I just readjusted the distributor). Duh. The mechanical weights have been thrown outward and cannot retract, 'cause the spring is brokenow I am timed correct at idle (i was advanced at idle)----mechanical advance. Is advanced!

5) the ignition modules seemed to have a short life

Since then----i learned how to quickly check and confirm that both advances (mechanical and vacuum) are actually working correctly. Using only a timing light.I do this from time to time (usually when teaching else someone how to check 'em!)

Symptoms range from. Backfiring--loss of power---higher idle speed than before a mpg drop. Sometimes it's just not so obvious you even have a problem. These problems are not just limited to the older system, they can also happen to the motorcraft system also. From my experiences with mine and others just not very often

Really there was not a lot involved in order to "upgrade" to the motorcraft system. Motorcraft was installed in the 1979s on upi have not had much trouble with them in my jeeps, past and present---- a so much better design than before!

A few butt splices---a ballast resistor ('78 on back did not use a "resistance wire" like '79 on up)----and a few wires from a 70s or 80s "ford product" ---to tie the ign module to the distributor (those big black connectors).I installed a reman distributor from advance auto parts---it was about $50.I had to buy a distributor cap and rotor button as well

Below is the coil for '79 on up

Glad you got it running----ready to tune it now?

The medic
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
I think they are overrated

If anything, i'd convert to motorcraft

At advance auto, a reman motorcraft is about $50 has a lifetime warranty too!

If you wanna wait for that, get another presto

My "last" prestolite distributor had the same qualities as the the one above, when I decided to make the upgrade, the advance auto parts manager just let me swap the presto for the motorcraft and got the same warranty

What a deal!

The medic
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Saturday, July 13th, 2019 AT 11:45 AM (Merged)
Tiny
JAYBOT
  • MEMBER
I am shocked it was the coil. It didn't make sense to me with an inline tester and it always showing spark. I had to learn how to test it wit a tester to tell that it was actually a problem. Thank you so much for all of your knowledge. I was almost to the point of tearing out the whole ignition and replacing it.
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)
Tiny
OZZIE62G
  • MEMBER
Hi there sorry for the delay work is crazy. Ok update I sent some time on the CJ today, it's no longer a spark problem. It's a fuel issue. I got it started for like 15 sec what I've noticed is I have to open up the throttle about half to full for it to want to start. I look down into the Carb and the intake is full of fuel. Now it's more like flooded. What do you think? Thanks
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
For all it's worth---here's one of the several posts that I try to explain "timing" and "tuning" the carb. This works for most any carbureted vehicle with a vacuum advance

When I go lookin' for an old post of mine to link someone to----(to keep me from having to write the same thing all over again)---i have used the "question search". Now found down lower on the page

Our site has changed several times since I have got on here.I liked the 1st layout, myself.I've found that "this"."Question search" just don't work so well

Once there, I install.2carpros. Cj medevac.(Then what ever I can remember as key words--one example being.). Xbleed (purposely made up words. This one takes me to a brake bleeding post

The more words I can remember. The better. Other examples to find other posts are. Xradiator. Sweet spot (carbs). Tough love (connections-no start). Combo pic. Hoarder. Tractor. Drifting. The list goes on! (For my benefit anyway)

For your benefit. Install.2carpros. Cj medevac. Cj 7 (cj 5 is 99% the same too). Then what ever jeep problem related words (maybe special to the system--example) ring and pinion. Thermostat. Heater. Fuel tank. Etc

As far as the albums I sent thus far. Did you know about the "vent" feature ---- and how it and heater controls are configured to maximize comfort?

There's a bunch of cjers who don't know the deal---who have been pulling the "air k. Nob" out a 1/4 of the way---thinking "that" was 1/2 way for heat (cheating themselves out of warmth). Never knowing the vent part existed for spring and summer driving.I use this 'know how' as an "icebreaker" when I meet another jeep cj kinda person

Lemme know when you need something. You can jump back on this same post. Or email me

I hope you have been able to understand me.I'm more of a hands on kinda guy

The medic
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
This is the original 1 bbl carter yf?

Or is it a 2 bbl-carter bbd?

Or is it something different?

The medic
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)
Tiny
OZZIE62G
  • MEMBER
1B Carter
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
Gimme some history about this particular carb-who/ what/ why/ where/ and the rest!

Your jeep is really lookin' pertty!

Back on page 3, center of fuel filter feeds carb, little one on the edge is the return?

Your pics must be too big, only got one, copied it and blew it up so I could try to see everything.

The medic
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
I got 3 notifications

Only one reply-4 pics-2nd one worked-other 3 nothin'

Maybe you need to post one pic at a time?

Did you send any text? If so, it did not show

After your next post, i'm gonna have to hit the hay!

The medic
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)
Tiny
OZZIE62G
  • MEMBER
I have no idea what I'm doing I'll take some pic in the morning
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)
Tiny
CJ MEDEVAC
  • MEMBER
Roger that

Gimme info I asked for about the carb

See you after I slave for the big guys tomorrow, sometime after 17:30 eastern

The medic
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Saturday, July 13th, 2019 AT 11:46 AM (Merged)

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