Alaska 4x4 Network

Go Back   Alaska 4x4 Network > Alaska 4x4 Network Forums > General Chit-Chat

General Chit-Chat Please keep this CLEAN, and FAMILY ORIENTED.

Reply
 
Thread Tools Display Modes
Old 11-15-2016, 09:43 AM   #1
Skipper
Registered Member
 
Join Date: Nov 2016
Location: Anchorage
Posts: 5
Skipper has disabled reputation
Default CJ has no/weak spark

My CJ has a 304 V8 and I have no spark at least not enough to fire the engine.
It was running fine till the battery got hooked up backwards during ago and left a charge from another vehicle for 15 minutes
I started replacing parts beginning with the voltage regulator, the solenoid, the ignition control module, the distributor, cap and rotor, plug wires and carburetor
With three spark detectors and I get spark on all eight cylinders at once. Any ideas?
Skipper is offline   Reply With Quote
Old 11-15-2016, 04:42 PM   #2
subybaja
Registered Member
 
Join Date: Aug 2013
Location: Spenard
Posts: 205
subybaja has disabled reputation
Default Re: 1976 jeep cj5

1) Weird place for a tech question. Try GCC...

2) All 8!?! Huh? Like you pulled all the plugs and watched them all fire? How does that even work, with the rotor only pointing to one wire at a time?
subybaja is offline   Reply With Quote
Old 11-15-2016, 10:14 PM   #3
Skipper
Registered Member
 
Join Date: Nov 2016
Location: Anchorage
Posts: 5
Skipper has disabled reputation
Default Re: 1976 jeep cj5

New to the forum do you think the moderator would change it to the correct form.
Or could you tell me how
Skipper is offline   Reply With Quote
Old 11-15-2016, 10:24 PM   #4
DRussell
Registered Member
 
DRussell's Avatar
 
Join Date: Apr 2014
Location: Wasilla
Posts: 606
DRussell has disabled reputation
Default Re: 1976 jeep cj5

So when the battery was hooked up backwards for a period of time, what happened? There had to have been some melted terminals or jumper cables or something. If it stayed hooked up backwards for 15min, that's a dead short for 15 min and will creat a lot of heat.

Did you replace the battery itself? Likely melted the lead plates together inside.

Did you ever turn on the ignition while it was hooked up backwards? If not than most of your ignition system should be fine I would think.
__________________
Go big or go home
Alaska Low Range Recovery
https://m.facebook.com/profile.php?id=1473210242929544
DRussell is offline   Reply With Quote
Old 11-15-2016, 10:47 PM   #5
snowbear
Full Member
 
Join Date: Mar 2006
Location: Wasilla
Posts: 5,986
snowbear will become famous soon enough
Default Re: CJ has no/weak spark

moved...
__________________
"Do not follow where the path may lead. Go instead where there is no path and leave a trail"- Ralph Waldo Emerson
snowbear is offline   Reply With Quote
Old 11-16-2016, 05:26 PM   #6
Skipper
Registered Member
 
Join Date: Nov 2016
Location: Anchorage
Posts: 5
Skipper has disabled reputation
Default Re: CJ has no/weak spark

Yes new batterie also. Looking at a chitons and Haynes I see fuseable links.
This thing is had so much work done on it over the years.
the fusible link by the battery isn't there.
do you think it could be in the dash or possibly the ignition switch itself?
Skipper is offline   Reply With Quote
Old 11-16-2016, 05:27 PM   #7
Skipper
Registered Member
 
Join Date: Nov 2016
Location: Anchorage
Posts: 5
Skipper has disabled reputation
Default Re: CJ has no/weak spark

The only thing I have it replaced is the key switch itself
Skipper is offline   Reply With Quote
Old 11-16-2016, 05:32 PM   #8
DRussell
Registered Member
 
DRussell's Avatar
 
Join Date: Apr 2014
Location: Wasilla
Posts: 606
DRussell has disabled reputation
Default Re: CJ has no/weak spark

It's really hard to say. Any time I have witnessed a large electrical malfunction it tends to melt the wires right off whatever is being fried, in your case starting at the battery but could have possibly done some damage down the line. Sorry my advise isn't better but without being there with a meter in hand you really can't tell. There should be a ignition hot 12 v heading to the coil when ignition is on. Try looking for that and make sure it's there. Let us know what you find
__________________
Go big or go home
Alaska Low Range Recovery
https://m.facebook.com/profile.php?id=1473210242929544
DRussell is offline   Reply With Quote
Old 11-16-2016, 06:18 PM   #9
Raven
Work hard, play hard!
 
Raven's Avatar
 
Join Date: Nov 2004
Location: Kodiak, Alaska
Posts: 2,278
Raven will become famous soon enoughRaven will become famous soon enough
Default Re: CJ has no/weak spark

Find someone who has a good electrical meter, and the knowledge to use it. It's a CJ. Electrically speaking, they're really simple. Only so many things that can go wrong. You're either getting full voltage to your Duraspark ignition system, or you're not. A continuity check between points will tell you where you're losing it, or not. If you don't have any fusible links, that's a problem. Tells me there's been issues in the past that someone has "re-engineered". Something fried and was hard wired? Awe, crap....

Kodiak Offroad: 907-250-4054 Kurt is in Chugiak, has a long history with, and a shop full of CJ's.

Team Lance Garage: 351-5790 Dan is in Eagle river. He will understand your situation and be able to help you.
__________________
When your life can be over in seconds the cops are just minutes away...

Emerald Isle Offroad- The few, the proud, the completely isolated.
Raven is offline   Reply With Quote
Old 11-16-2016, 06:29 PM   #10
wasillashack
Registered Member
 
Join Date: Apr 2008
Location: Wasilla
Posts: 4,416
wasillashack has disabled reputation
Default Re: CJ has no/weak spark

Sorry Scott, apparently your move didn't stick. Moved to GCC, HTH.

Skipper, how did you test the plug wires to determine they were all firing at once?
__________________
Any man who thinks he can be happy and prosperous by letting the government take care of him had better take a closer look at the American Indian.
~ Henry Ford

We are told not to judge Muslims based on the actions of a few.

I suggest we give the millions of responsible Americans gun owners that same courtesy.

Last edited by wasillashack; 11-16-2016 at 06:42 PM.
wasillashack is offline   Reply With Quote
Old 11-16-2016, 06:38 PM   #11
wasillashack
Registered Member
 
Join Date: Apr 2008
Location: Wasilla
Posts: 4,416
wasillashack has disabled reputation
Default Re: CJ has no/weak spark

Of the half dozen CJ's I've owned, the first casualty of any Jeep CJ is the wiring, owners have no reservations about folding, spindling and mutilating any wiring in a Jeep. Hard to trouble shoot without hands and eyes on.
The 80 CJ7 I had had an ignition module failure, found out a Ford IM worked and was cheaper FYI. IM's are potted (encased in epoxy) be hard to see any magic smoke out of them, also, if you have power to the IM, doesn't mean it is functional. Usually an IM either works or doesn't, no in between. I have a large wooden crate filled with CJ parts, you are welcome to come by and look for anything you can use, I know there are starters, carbs, heaters, dash parts and maybe some some IMs' been several years since it was stored, yours free, if interested, please respond here. Phone went through the washer today.
__________________
Any man who thinks he can be happy and prosperous by letting the government take care of him had better take a closer look at the American Indian.
~ Henry Ford

We are told not to judge Muslims based on the actions of a few.

I suggest we give the millions of responsible Americans gun owners that same courtesy.

Last edited by wasillashack; 11-16-2016 at 07:06 PM.
wasillashack is offline   Reply With Quote
Old 11-16-2016, 09:12 PM   #12
Skipper
Registered Member
 
Join Date: Nov 2016
Location: Anchorage
Posts: 5
Skipper has disabled reputation
Default Re: CJ has no/weak spark

I food with this thing for about a month replacing everything I could think of I finally took it to 4 x 4 and front wheel drive down on old Seward and 74th. I'm not a mechanic so I didn't really know what I was doing he showed me three spark detectors one in the coil and one on cylinder number one. When we crank the engine you would see a dim light fire eight times and then flash bright on the last one. The coil was firing continuously. It's already cost me over a grand and it still isn't running. If this guy in Eagle River has a garage where he works on jeeps I need to contact him. What other parts do you have in the box? I do need a mirror. The Jeep has large t urf tires on it with the extra wide rims so I can't drive it on the street. I do have a trailer for it, but until I can get it running I can't get it on the trailer. I need to get it out of there he's had it for about a month. Not his fault really the business is changing ownership.
Skipper is offline   Reply With Quote
Old 11-16-2016, 09:19 PM   #13
snowbear
Full Member
 
Join Date: Mar 2006
Location: Wasilla
Posts: 5,986
snowbear will become famous soon enough
Default Re: CJ has no/weak spark

Quote:
Originally Posted by wasillashack View Post
Sorry Scott, apparently your move didn't stick. Moved to GCC, HTH.

Skipper, how did you test the plug wires to determine they were all firing at once?
It was right where i put it
__________________
"Do not follow where the path may lead. Go instead where there is no path and leave a trail"- Ralph Waldo Emerson
snowbear is offline   Reply With Quote
Old 11-17-2016, 08:13 AM   #14
wasillashack
Registered Member
 
Join Date: Apr 2008
Location: Wasilla
Posts: 4,416
wasillashack has disabled reputation
Default Re: CJ has no/weak spark

Scott,

I found it in "4x4 Vehicles", it was suggested to be moved to GCC, since it wasn't there, I moved it, pardon me.
__________________
Any man who thinks he can be happy and prosperous by letting the government take care of him had better take a closer look at the American Indian.
~ Henry Ford

We are told not to judge Muslims based on the actions of a few.

I suggest we give the millions of responsible Americans gun owners that same courtesy.
wasillashack is offline   Reply With Quote
Old 11-18-2016, 01:17 PM   #15
wasillashack
Registered Member
 
Join Date: Apr 2008
Location: Wasilla
Posts: 4,416
wasillashack has disabled reputation
Default Re: CJ has no/weak spark

Skipper, I don't remember what is in the 2 crates, if you want to come out, at your convenience, you can have anything related to CJ's from 72 to 86. I need to keep the 66 to 71 parts. Let me know what you decide, I have no plans to go anywhere this weekend, if that helps.
The shop in Eagle River is most likely Team Lance, run by Dan Lance, sorry I don't have his number convenient. Dan is well respected.
__________________
Any man who thinks he can be happy and prosperous by letting the government take care of him had better take a closer look at the American Indian.
~ Henry Ford

We are told not to judge Muslims based on the actions of a few.

I suggest we give the millions of responsible Americans gun owners that same courtesy.

Last edited by wasillashack; 11-18-2016 at 01:22 PM.
wasillashack is offline   Reply With Quote
Old 11-18-2016, 02:29 PM   #16
nate
Registered Member
 
nate's Avatar
 
Join Date: Nov 2004
Location: Palmer, AK
Posts: 9,029
nate will become famous soon enough
Default Re: CJ has no/weak spark

315-5790
__________________
"If you shoot straight and tell it like it is, you will never have to worry over what you lied about yesterday" John Wayne
I can weld anything from the crack of dawn to a broken heart.

"The marvel of all history is the patience with which men and women submit to burdens unnecessarily laid upon them by their governments." - George Washington
nate is offline   Reply With Quote
Old 11-19-2016, 07:12 AM   #17
broncoformudv
Registered Member
 
broncoformudv's Avatar
 
Join Date: Nov 2004
Location: Wasilla
Posts: 908
broncoformudv is on a distinguished road
Default Re: CJ has no/weak spark

If you are getting spark but it is weak then it is in the ignition system not in the parts you replaced.

The ignition module, coil or pickup inside the distributor. Or bad sparkplugs, sparkplug wires or cap and rotor.
__________________
"But i'll give it to ya you're a keyboard commando for sure .,, top of your class!"
broncoformudv is offline   Reply With Quote
Old 12-01-2016, 12:45 PM   #18
wasillashack
Registered Member
 
Join Date: Apr 2008
Location: Wasilla
Posts: 4,416
wasillashack has disabled reputation
Default Re: CJ has no/weak spark

Skipper, Did the problem get fixed? If so, what was it?
__________________
Any man who thinks he can be happy and prosperous by letting the government take care of him had better take a closer look at the American Indian.
~ Henry Ford

We are told not to judge Muslims based on the actions of a few.

I suggest we give the millions of responsible Americans gun owners that same courtesy.
wasillashack is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -9. The time now is 06:59 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Copyright Alaska 4x4 Network