This way of testing an HT coil is a typical "back-yard" job. It is not correct nor will it give you any proper result except to indicate that current is flowing through the coil. The first test you should do is to measure the resistance of the Primary and Secondary windings. The primary resistance should be less than 1 Ohm (.75 to . 95) and the secondary should measure 11K ohm. To test a coil properly you should have a coil tester. If you can afford it invest in an IMRIE 3000 or the IMRIE 630
how can this be a good test?i also did this to my ign system and i got spark but the problem is that my car cranks but wont start.when i test for spark some time i have spark in cylinder 1 and some times dont and 2 or 3 i have no spark,,i have new coil,condens,cables,plugs,points,,what the hell could be the problem,,how can i know the coil is bad or delivering the right amount of kilovoltage without using an osciloscope?
i wonder is there any page or pattern,that says " the spark must be ..... this wide and must have a color ...... to know is a proper and good spark" some people say must be blue and thick as possible other people says just try to test it as far away from earth or chassis if it jumps more than 5mm is good and etcetc ,can you give me a tip?
how to complicate,and speek clearly,when your clothes is not working, why don't you explain you have a positive and negative on the top of the coil,just like harley dealers know f all
just to let the folks know... my brother got shocked shitless messing with his coil when the car was running... he accidentally touched it and made a sound like blll blll bll ball blll ball blll bllll as the engine slowly wound down to a stop. be careful!
hi there i have a question. i just removed the coil from my 99 accent and tested it with a multimeter and both the primary resistance and secondary resistance for both coil packs(1 and 4, 3 and 2) were fine. i then went back to check it again the next day as it had been sitting on the kitchen table and now i'm getting absolutely no reading for the secondary resistance on either coil pack! the primary resistance is still within spec, but a few decimal places higher now. thanks!
This video does NOT correctly depict how a coil works. In a breaker points system, the "condenser" across the points forms a very important component, and in fact, most engines will not start or run without a good condenser (capacitor). To properly test a coil, and see if it produces a decent spark, a proper cap should be hooked in--from the points side of the coil to ground. The coil's magnetic field gives up it's energy by charging up the cap, and they trade energy (flywheel)
An ignition coil is made of a couple hundred or so turns of course wire called the primary winding, and well over a thousand or more turns of fine wire called the secondary winding. These two wires are insulated from each other, wound around an iron core and then packed in oil inside the ignition coil's case.
(This is to the best of my knowledge. If anyone sees this incorrect, feel free to tell me. :3 )
sparkplug wires act like a resistor and theres one in the spark plug to i was thinking about getting rid of them in my car with resistorless sparkplug and some insulated high voltage wire and a capacitor so the plug dosent burn and gives a higher intesity spark and a a map sensor enhancer to see if i get better fuel mileage
I am delighted these videos are available. Car electrical components are rather confusing to remember when they are not directly incorporated into daily activities.
I tested my coil today using this method, but I get a very tiny spark. I read somewhere else that a capacitor is needed between coil - and grond. I tried that and I get a thick blue-purple spark during the bench test. I'm a little confused as to why that worked. What made me more confused is that the stock ignition system doesn't have a capacitor and when testing the coil by cranking the engine I get a much hotter spark than the bench test without the capacitor. Could you offer any insight?
A capacitor in a car is usually called the condenser.
When testing by hand a tiny spark is good. We cant make/break that ground circuit by hand fast enough to let the coil really show what it has to offer. We rub the ground lead across the threads of a bolt. That quick series of contact/no-contact is what allows the coil to fire brightly enough to be seen in the video.
If you get even a small discernable spark by testing by hand you will have plenty of spark to run your motor nicely.
I should have wrote 11K +/- 1K.
goinghomesomeday1 2 weeks ago
This way of testing an HT coil is a typical "back-yard" job. It is not correct nor will it give you any proper result except to indicate that current is flowing through the coil. The first test you should do is to measure the resistance of the Primary and Secondary windings. The primary resistance should be less than 1 Ohm (.75 to . 95) and the secondary should measure 11K ohm. To test a coil properly you should have a coil tester. If you can afford it invest in an IMRIE 3000 or the IMRIE 630
goinghomesomeday1 2 weeks ago
how can this be a good test?i also did this to my ign system and i got spark but the problem is that my car cranks but wont start.when i test for spark some time i have spark in cylinder 1 and some times dont and 2 or 3 i have no spark,,i have new coil,condens,cables,plugs,points,,what the hell could be the problem,,how can i know the coil is bad or delivering the right amount of kilovoltage without using an osciloscope?
serchmarc 3 weeks ago
@serchmarc are you getting fuel?
MrAss707 3 weeks ago
@MrAss707 of course man...
serchmarc 3 weeks ago
Can you explain more details about how you wire it next time PLEASE!!!!
jonathan99786 3 months ago
i wonder is there any page or pattern,that says " the spark must be ..... this wide and must have a color ...... to know is a proper and good spark" some people say must be blue and thick as possible other people says just try to test it as far away from earth or chassis if it jumps more than 5mm is good and etcetc ,can you give me a tip?
serchmarc 4 months ago
I would love to see how the connection goes....
jonathan99786 5 months ago
some coils fail only when hot!
paulme33 5 months ago
how to complicate,and speek clearly,when your clothes is not working, why don't you explain you have a positive and negative on the top of the coil,just like harley dealers know f all
kopynd1 6 months ago
we know how a coil works, just explain how to test it man
kopynd1 6 months ago
just to let the folks know... my brother got shocked shitless messing with his coil when the car was running... he accidentally touched it and made a sound like blll blll bll ball blll ball blll bllll as the engine slowly wound down to a stop. be careful!
nothadnotbad 7 months ago
hi there i have a question. i just removed the coil from my 99 accent and tested it with a multimeter and both the primary resistance and secondary resistance for both coil packs(1 and 4, 3 and 2) were fine. i then went back to check it again the next day as it had been sitting on the kitchen table and now i'm getting absolutely no reading for the secondary resistance on either coil pack! the primary resistance is still within spec, but a few decimal places higher now. thanks!
8btz 9 months ago
Thanks I forgot about this trick I`d sure like to download this so I don`t lose your good advice.
MrMrtiki 10 months ago
Why is he whispering?
cricketsinwigs 11 months ago
An old coil can throw a YELLOW spark .
A Good coil will throw a BRIGHT BLUE FAT spark
peterm3964 1 year ago
forgot the part where ur hand blows off
Gpilot071 1 year ago
It rubs the lotion on its skin. It rubs it on its skin or it gets the hose again!
time4000 1 year ago
why you dont put your finger in there see if it really works ok
G562UNOT 1 year ago
Get any jolts from the back emf from the coli on the croc clip you're holding?
More likely when you're leaning over the front of your car.
Maybe worth mentioning holding by an insulated part of the wire.
Just an observation from experience :-D
Andy20202007 1 year ago
This video does NOT correctly depict how a coil works. In a breaker points system, the "condenser" across the points forms a very important component, and in fact, most engines will not start or run without a good condenser (capacitor). To properly test a coil, and see if it produces a decent spark, a proper cap should be hooked in--from the points side of the coil to ground. The coil's magnetic field gives up it's energy by charging up the cap, and they trade energy (flywheel)
fourfortyroadrunner 1 year ago
can any body pls tell me what a ignition coil constructed out of, thanks
mcitaly61 1 year ago
@mcitaly61
An ignition coil is made of a couple hundred or so turns of course wire called the primary winding, and well over a thousand or more turns of fine wire called the secondary winding. These two wires are insulated from each other, wound around an iron core and then packed in oil inside the ignition coil's case.
(This is to the best of my knowledge. If anyone sees this incorrect, feel free to tell me. :3 )
sanjima 8 months ago
Why not just use an ohmmeter?
seapeddler 1 year ago
it doesn't have a secondary winding, it's an auto-transformer, similar principle but technically wrong.
davef21370 1 year ago
go the datsun head in the back round !
overr8ted2 1 year ago
Good Video...So if there is NO Spark, at the Plugs it could be that the Points are NOT OPENING??? Am I correct???
MrDanoconnor 2 years ago
could be
JDMGTP 2 years ago
Would there be any problem if ignition coil be replace with different model?
dimeton 2 years ago 2
As long as it was replaced with an appropriate ballasted or non-ballasted coil then everything else will be fine.
MossMotorsCom 2 years ago
This is a really critical point if you are running a Pertronix - make sure to research this and ask questions if you.
tdskip1 2 years ago
@dimeton Only if the specs are different
nobleheight 2 years ago
sparkplug wires act like a resistor and theres one in the spark plug to i was thinking about getting rid of them in my car with resistorless sparkplug and some insulated high voltage wire and a capacitor so the plug dosent burn and gives a higher intesity spark and a a map sensor enhancer to see if i get better fuel mileage
prototype9000 2 years ago
I am delighted these videos are available. Car electrical components are rather confusing to remember when they are not directly incorporated into daily activities.
kojiaque 3 years ago
I tested my coil today using this method, but I get a very tiny spark. I read somewhere else that a capacitor is needed between coil - and grond. I tried that and I get a thick blue-purple spark during the bench test. I'm a little confused as to why that worked. What made me more confused is that the stock ignition system doesn't have a capacitor and when testing the coil by cranking the engine I get a much hotter spark than the bench test without the capacitor. Could you offer any insight?
Rally68 3 years ago
A capacitor in a car is usually called the condenser.
When testing by hand a tiny spark is good. We cant make/break that ground circuit by hand fast enough to let the coil really show what it has to offer. We rub the ground lead across the threads of a bolt. That quick series of contact/no-contact is what allows the coil to fire brightly enough to be seen in the video.
If you get even a small discernable spark by testing by hand you will have plenty of spark to run your motor nicely.
MossMotorsCom 3 years ago