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Plugs not firing............
#121697
09/16/08 02:44 PM
09/16/08 02:44 PM
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Joined: Oct 2005
Posts: 708
Mechanic Falls, Maine
4BBodies
OP
mopar addict
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OP
mopar addict
Joined: Oct 2005
Posts: 708
Mechanic Falls, Maine
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.........ok, I have power to the coil, both with the key on, and also while cranking. (My test light gets brighter.) The distributor is not 180 out, the rotor button is pointing to #1, and the plug wires are on correctly. The plugs are not firing though. The only thing I can think of is the 2 wire connector to the coil, from the electronic ignition. I had to add the connector to the harness, if I wired it backwards, would it run? 
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Re: Plugs not firing............
[Re: 4BBodies]
#121699
09/16/08 03:02 PM
09/16/08 03:02 PM
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Joined: Apr 2007
Posts: 2,826
NY usa
540challenger
master
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master
Joined: Apr 2007
Posts: 2,826
NY usa
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Quote:
Also, the reluctor gap in the distributor is at .008. I took a plug out and set it against the block and cranked, no spark. The coil to distributor cap wire doesn't seem to go on right, could this also be a possibility?
 i had the regualtor assembly get lose and lift up inside my distrubtor. 
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Re: Plugs not firing............
[Re: 4BBodies]
#121702
09/16/08 03:17 PM
09/16/08 03:17 PM
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Joined: Sep 2005
Posts: 2,179
California, USA
blairboy3
top fuel
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top fuel
Joined: Sep 2005
Posts: 2,179
California, USA
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Quote:
Sorry, I wrote the first paragraph wrong, the 2 wire connector to the DISTRIBUTOR, from the electrionic ignition. Would that work if backwards?
I've heard that if you reverse those two wires, you can fry the distributor... might be what happened, but not sure 
1968 Plymouth Fury III 4-Door: 12.79 @ 115, 60'- 1.93 (Hey... it's a Cruise ship... what do you expect?!) Famoso Raceway, 02/08
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Re: Plugs not firing............
[Re: 4BBodies]
#121704
09/16/08 03:31 PM
09/16/08 03:31 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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changing the magnetic pickup wires shouldnt fry the pickup. it could (has been said) cause it to run crappy.
get rid of the test light. worthless here. get a dvm (voltmeter with ohmmeter). check VOLTAGE at the coil wrt ground. check to see the body of the ignition box is grounded.
lift the distr. cap and make sure the rotor isnt twisted up like a pretzel which can happen if the cap goes on crooked.
see if theres spark at the end of the coil wire. you could take the - lead off the coil, hold the coil wire near ground, turn the ign on, ground the neg coil stud then open it and see if a spark jumps....
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Re: Plugs not firing............
[Re: 4BBodies]
#121706
09/16/08 03:55 PM
09/16/08 03:55 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
.........ok, I have power to the coil, both with the key on, and also while cranking. (My test light gets brighter.) The distributor is not 180 out, the rotor button is pointing to #1, and the plug wires are on correctly
Doesn't mean that you still aren't 180 off. You have to make sure that the number 1 piston is at Top DEAD Center or 5 degrees before and that the piston is at this position on the compression stroke and not the exhaust stroke. If it is not on the right stroke you are off. Very simple to tell by pulling number one plug and turn the engine over very slowly by bumping the terminals on the starter relay and holding your finger over the number one plug hole. When you start to feel air coming out quit and see where you are and. finish bringing up with a breaker bar on the crank bolt or very carefully tapping the relay terminals. don't go past or you start over. 
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Re: Plugs not firing............
[Re: 4BBodies]
#121707
09/16/08 04:00 PM
09/16/08 04:00 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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the problem is in the dist. loosen the dist,key on, everything hooked back up & grab dist & move it back then pull it around to make the reluctor go past the magnet & see if it triggers a spark.
live every 24 hour block of time like it's your last day on earth
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Re: Plugs not firing............
[Re: 4BBodies]
#121709
09/16/08 05:07 PM
09/16/08 05:07 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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& when you did that was the rotor under the terminal of the particular plug wire that you used on this? If you repeated this test with the coil wire pulled out of the dist & 1/4" from metal do you get a spark? With those 2 (dist to ecu) wires reversed instead of the reluctor triggering the pickup(magnet) as it moves away from it, it now triggers it as it comes into close proximity to the magnet which changes the timing for sure & MAYBE scrambles the signal & makes it run strange but it does not fry anything.
live every 24 hour block of time like it's your last day on earth
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Re: Plugs not firing............
[Re: 4BBodies]
#121714
09/16/08 05:35 PM
09/16/08 05:35 PM
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Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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If you hold the coil wire as opposed to a plug wire 1/4" from ground & move the dist back & forth will it fire.
live every 24 hour block of time like it's your last day on earth
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Re: Plugs not firing............
[Re: 4BBodies]
#121716
09/16/08 05:48 PM
09/16/08 05:48 PM
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Joined: Feb 2003
Posts: 8,685
Andrewh
master
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master
Joined: Feb 2003
Posts: 8,685
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Quote:
I'm not following you on that one bub, I thought the coil wire was always hot?
If you mean the wire from the coil to distributer, you thought wrong.
The coil is a big capacitor. It requires charging. It fires when the points break contact(I think, moved to all electronic ignitions,) causing the capacitor to discharge only at each spark plug.
If you mean the wire going to the coil, it is keyed on.
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