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Help with no start

Started by Alan73Charger, September 19, 2015, 05:08:56 PM

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Alan73Charger

First I also posted this in the garage section under electrical but it wasn't being seen, so my apologies for the repost here.

Hopefully someone can help get my 73 starting again. I put new plugs in it, same type that came out.  Champion rn14yc.  My neighbor is suggesting I pull them out and go with some NGK plugs, but surely these would start the car.  They all appear to be snug and wires attached.  I didn't change the wires.  Could use some better ones.  7mm Belden Edge premium.  What 8mm wires would you guys suggest?

The only other things I've done that might effect the car starting is with the battery.  I put in a new green top 24 series restoration battery and replaced just the terminal on the positive cable.  I took the negative cable off long enough to re-tape the ground wire that goes from the aux lead to the body.  I bolted the one end back to the block and the ground back to the body and tightened it down on the new battery. 

I will admit to giving the car gas when trying to start it.  I drove a 67 Coronet for years so will need to get used to the electronic ignition.  You can smell gas strong and when I pull a plug out the gas smell is strong on the tip.  Could I just have severely flooded it to the point it won't start??

I've attached a link to a video so you can hear it trying.  Any help getting it running would be greatly appreciated!!

https://youtu.be/8Nw5mAavQY8
Wife said spend more time with me and less time with that Mopar.
I actually love being single!

70 sublime

How long ago did it last run ?
What motor ?

Pull one plug out and set it down on something metal on the car with the spark plug wire on it and see if there is any spark when you crank it over

If you have spark it is just really flooded would be my guess
next project 70 Charger FJ5 green

Alan73Charger

Quote from: 70 sublime on September 19, 2015, 05:34:01 PM
How long ago did it last run ?
What motor ?

Pull one plug out and set it down on something metal on the car with the spark plug wire on it and see if there is any spark when you crank it over

If you have spark it is just really flooded would be my guess

318.  It ran great just a couple days ago before the plug change.  I'll give that a shot and see if I get a spark.
Wife said spend more time with me and less time with that Mopar.
I actually love being single!

Alan73Charger

Quote from: 70 sublime on September 19, 2015, 05:34:01 PM
How long ago did it last run ?
What motor ?

Pull one plug out and set it down on something metal on the car with the spark plug wire on it and see if there is any spark when you crank it over

If you have spark it is just really flooded would be my guess

No spark seen at the #1 plug when cranked over with it touching one of the black support bars.
Wife said spend more time with me and less time with that Mopar.
I actually love being single!

polywideblock

try the exhaust manifolds first , you might not be getting a good earth . or you might have dislodged/broken the earth wire when taping it up  :scratchchin:


  and 71 GA4  383 magnum  SE

charger Downunder


No spark seen at the #1 plug when cranked over with it touching one of the black support bars.
[/quote]
Sounds like your now on to it. No spark
[/quote]

XH29N0G

Are you good from here with diagnosing and working back from the plug through the various systems?  (coil, key, etc...) I can't go through it off the top of my head (a lot on the list can), but had to more than once in the past.  
Who in their right mind would say

"The science should not stand in the way of this."? 

Science is just observation and hypothesis.  Policy stands in the way.........

Or maybe it protects us. 

I suppose it depends on the specific case.....

Alan73Charger

Quote from: polywideblock on September 19, 2015, 06:09:10 PM
try the exhaust manifolds first , you might not be getting a good earth . or you might have dislodged/broken the earth wire when taping it up  :scratchchin:
The ground I was taping went from just in front of the battery to the negative cable auxillairy lead.  Are you talking about the ground wire that goes from the firewall and bolts on to the manifold on the passenger side?  I was replacing a couple heater hoses there and possibly could of dislodged that ground strap although it seems to be attached.

Wife said spend more time with me and less time with that Mopar.
I actually love being single!

XH29N0G

A quick interjection, Are you using a multimeter to check continuity, I think this would tell you how good of a connection you have to the ground.  It also might be useful to check whether you have potential where you need it when the ignition is switched on (such as at the coil).  

You may already know all the rest of this and I apologize if it repeats.  I think you can also check spark by inserting a phillips screwdriver into the boot and looking for a spark to a ground.  I also used a wrench to ground the plug, put the plug into a wrench.
Who in their right mind would say

"The science should not stand in the way of this."? 

Science is just observation and hypothesis.  Policy stands in the way.........

Or maybe it protects us. 

I suppose it depends on the specific case.....

Alan73Charger

Quote from: XH29N0G on September 19, 2015, 07:14:06 PM
A quick interjection, Are you using a multimeter to check continuity, I think this would tell you how good of a connection you have to the ground.  It also might be useful to check whether you have potential where you need it when the ignition is switched on (such as at the coil).  

You may already know all the rest of this and I apologize if it repeats.  I think you can also check spark by inserting a phillips screwdriver into the boot and looking for a spark to a ground.  I also used a wrench to ground the plug, put the plug into a wrench.


I have an Innova 3320 multimeter XH29NOG.  To be quite honest I've never had to use it.  I'm sure I can figure it out.  I'm assuming I would need to turn the key far enough to open the ignition switch and test some readings.  I'll do a little research on how to do this but any helpful tips would be appreciated. 
Wife said spend more time with me and less time with that Mopar.
I actually love being single!

XH29N0G

The multimeter can be used for a number of tests.  

One is to check continuity (resistance or ohms).  You can use this to make sure that current will make it from one part to another (like one end of the wire you taped to the other end of the wire).  If there is another path through the car, you might still see it as continuous but you can disconnect it and check if necessary.  

The other test that I do is related to DC voltage.  For this, I need to know what the voltage should be between two points and under what conditions (key on/off, all the time, etc...) and for this some troubleshooting regimen is needed.  My car has an aftermarket ignition so the troubleshooting I do is done from their literature, but it also could be from the Factory service manual or from something someone on here might suggest.  

Unfortunately, I do not have a specific suggestion.  If I did not have spark, I would start to trace it back to the distributor, coil, and other parts of the ignition.  I would also make sure that the ignition was getting power when it needed it.  The issue is that I do not know how off the top of my head.  Hopefully someone else will pipe in with a suggestion of how.  If they do not, you might start a thread asking for help testing and fixing a no spark condition to see if you can catch someone's attention who will know.  Good luck with this.  I will try to help, but as I said am not the best one on here for that.
Who in their right mind would say

"The science should not stand in the way of this."? 

Science is just observation and hypothesis.  Policy stands in the way.........

Or maybe it protects us. 

I suppose it depends on the specific case.....

70 sublime

I think maybe the easiest place to start would be the ballast resistor
With the key turned on for the engine to run position see if you have any power coming into and hopfully out of the resistor
I just use a test light for something like this
next project 70 Charger FJ5 green