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Wouldn't You Agree, A Spark Plug Connector Should Conduct Electricity?
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 19, 2016, 1:05 PM
Post #26 of 33
(1044 views)
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Re: Wouldn't You Agree, A Spark Plug Connector Should Conduct Electricity?
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Yes - Perfect, Tom
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chas
User
Sep 19, 2016, 8:00 PM
Post #27 of 33
(1038 views)
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Re: Wouldn't You Agree, A Spark Plug Connector Should Conduct Electricity?
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did you check the inside of the distributor cap?
look at the center spring load that rides the rotor. they wear out. Chas, thanks for the idea...I will check the cap more closely. But I am truly hung up on what I see as an illogical connector problem. I can, and may, replace the cap and the rotor and the points ( and I already have a replacement coil that changed nothing) but changing all those components may leave me with the same outcome...electricity isn't moving from one end of my spark plug connectors to the other. Even buying that new set of spark plug wires with new connectors changed nothing...the new connectors had no continuity either. Just to be clear...when I say continuity I mean that the tester's test endpoints provide for an audible buzz when connected together. When put into the ends of the spark plug connectors, there is no sound, thus no continuity in my terminology. Yet...when the same tester ends attempt to measure ohms (resistance) through the connectors...they do...about 1K ohms which is marked on the connector. So...that's another logic problem for my little brain...how can there be resistance without continuity? In the meantime the no spark has slowed my project to a standstill. Thanks for all the support thusfar...Dave>>>>>>> chas>>>>>even the cheap wires with the cheap conductors will give spark. you have break in the circuit somewhere between the points to the plugs. if the points spark i suggest you check the cap. the spring load that rides the rotor inside the cap is worn out. its not making contact with the rotor. push the spring load in the center with your finger up to see how much travel it has. if no travel its done worn out. it should have maybe 1/2inch or little less of travel in and out.
(This post was edited by chas on Sep 19, 2016, 8:06 PM)
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 20, 2016, 3:11 AM
Post #28 of 33
(1030 views)
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Re: Wouldn't You Agree, A Spark Plug Connector Should Conduct Electricity?
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Top post of this mess:
Quote">>I have a 1964 Porsche 356C with a no start/ no spark problem.<<"
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Dave: How did you come to this conclusion before you touched anything?
Fess up: You really don't know if the issue is spark at all do you? Do you or are you going to get a spark tester?
Here's a video of the simplest thing in this case used on a leaf blower! Doesn't matter for now what this vehicle is or not you need to see that it has spark or not and so far haven't shown you know - OK?
Jump along video - it just shows a $10 tester for presence of spark and whatever it's on will run with this type used as shown here...........
https://www.youtube.com/watch?v=eQBtzk-dGYM
No joke - it's that simple,
Tom
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Discretesignals
Ultimate Carjunky
/ Moderator
Sep 24, 2016, 3:54 PM
Post #30 of 33
(937 views)
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Re: Wouldn't You Agree, A Spark Plug Connector Should Conduct Electricity?
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Touching the active end of the wire to metal will work to see if you have spark as long as the distance from the terminal to the metal (ground) isn't too large or your not holding the terminal directly against the metal (ground). If the gap is too large, the spark won't appear. If you are touching the terminal to metal, there is no gap for the spark to jump and you won't see it. A spark tester is better because you can adjust the gap and you have less of a chance of getting zapped.
If you don't have spark appearing at the end of the wire after the distributor, then check for spark appearing at the wire that comes from the ignition coil. Do you have spark coming from the ignition coil itself?
You don't have to quote replies each time you respond. It just makes your post harder to read IMO.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Sep 24, 2016, 3:56 PM)
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daveward
Novice
Sep 24, 2016, 4:56 PM
Post #31 of 33
(929 views)
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Re: Wouldn't You Agree, A Spark Plug Connector Should Conduct Electricity?
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Discretesignals...thanks for that reply...very informative. I may have grounded the spark plug threads assuming the spark would appear it its normal location at the plug end...which is where I was looking, of course. I will try again. Also, I did check for spark from the coil and I recall I had it, but I will recheck. Another test I performed was to turn on the key, turn the engine by hand to the spark timing mark and watched the points spark when they opened. This leads me to believe the electricity in and around the distributor/coil/points/ is OK...hence my unwavering focus on the spark plug connectors. Ha ha.
Just to recap, here are the new/tested parts:
1. new plugs
2. new rotor
3. new points
4. coil older but I wired in a new one temporaily with no effect
5. condenser older but I wired in a new one temporarily with no effect.
6.new spark plug wires
7. Chas  you will be interested to know the distributor cap had a missing center point...the cap has been replaced with new with no effect. Good catch!
8. Older spark plug connectors which is the subject of this inquiry...new connectors tried with no effect.
Thanks very much
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Hammer Time
Ultimate Carjunky
/ Moderator
Sep 24, 2016, 5:01 PM
Post #32 of 33
(928 views)
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Re: Wouldn't You Agree, A Spark Plug Connector Should Conduct Electricity?
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You need to use a spark tester to test for spark. We are just wasting a whole lot of time here doing half tests. A spark tester costs $3. I'm sure you can handle that.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Sep 24, 2016, 7:59 PM
Post #33 of 33
(913 views)
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Re: Wouldn't You Agree, A Spark Plug Connector Should Conduct Electricity?
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Dave - No harm intended. Actually we want you to succeed just not getting the most basic info. Spark or not? Still a question where it drops out if any is available anywhere.
Pic of tools to test shown - Hammer Time's shows how far a spark will jump. Video shows part of a kit you can leave on and watch it while engine runs or not if not while nothing showing go back. If yes and it can't do thing the plug isn't firing when installed or something wrong there even totally wrong type or wet from fuel wont fire or jump the gap - a simple flooded out engine.
Nothing has been isolated that I can see just questioning parts.
A worthy thing to question. Are points making proper contact and connections there not grounded out. I can't follow all this with part answers.
That's why I chose a leaf blower video. It doesn't really matter what this thing is at all yet. It has spark or doesn't. From there how good is it if it does and is it making a spark while installed?
Need something to begin with. All the parts just now mentioned installed it should show where something is dropping out and plain no info shown or very sorry if I missed it,
Tom
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