coil wire arcing

Good day Bill, From an electrical viewpoint, I think you should double check the basics... Firstly, the reason you are getting arcing from the coil's tower is because there is a lower electrical impedance to ground from this point than through the coil wire-distributor cap-plug wire (s) … Just a stab in the dark. Work on getting the coil part solved and then go to the plug wires. Close inspection of the boots and terminals should also be checked. Attach the spark tester to the distributor end of the coil wire. Start near the shaft of the screwdriver so you can hold the wire in place with your thumb. 96 WS6..Ported stock intake w/58mm TB, 4bolt, 4340 SCAT RA/H-Beams/pistons, AFR195 Comp 58cc, ISKY Billet Steel 244/258 .600/.600, 1.5 Comp Magnum RR, CM PR's, Bal W/I 1/2 gram w/1725 Bob Weight. Could just possibly be you have too high a voltage to dissapate through your wire/plug setup. You can also measure the resistance of each spark plug wire, but like coils, values may vary between wire brands. If a coil can't spark it will build voltage untill it can and if it has to blow thru the side of a itself to release the energy it will. The reactor of the arc suppression coil extinguishes the arcing ground by neutralising the capacitive current. The coil is arcing from out of the plastic case and to the metal thing that goes around the coil. The coil wire isn't arcing, it's the actual coil that is arcing. Is it possible that a weak coil would cause this? The Peterson coil isolates the system, in which the healthy phases continue supplies power and avoid the complete shut down on the system till the fault was located and isolated. When the fault occurs on any of the phases, then the capacitive fault current flows into the ground. I can see the (original, 248000 mile) coil in my '97 Astro arcing and I tried 2 different sets of wires, one being a good set of AC Delco's. Remember this was in the early 70's,but anyway what I did was to use. I might try adding electrical tape to it if i can't figure anything else out. Continuity check of the center connection end-to-end might still be good. If a spark is present, the problem is probably in the distributor cap, rotor or spark plug wires. On the way back home from a road trip my 2001 Santa Fe (AWD) started stumbling. It's done it on three different coils. It's arcing on the square metal frame that all of them have. 94 Camaro Z28 A4 with 3200 Stall, 3.90, cc503, 1.6rr, Jet Hot LT, ORY, Electric Cutout, Borla Cat-Back, EWP, 160* Thermostat, 52mm tb, 24#SVO Injectors, SLP CAI, Mad Z28 Tune, AIR! The alternating extinction and reignition of the charging current flowing in the arc build up the potential of the other two healthy conductors due to the setting of the high-frequency oscillations. I'll try coating everything in silicone. A coiled wire has a higher inductance than a straight wire of the same length, because the magnetic field lines pass through the circuit multiple times, it has multiple flux linkages. The surge voltage due to arcing ground can remove by using the arc suppression coil or Peterson coil. The high-frequency oscillations are superimposed on the network and produce the surge voltage as high as six times the normal value. The potential of the fault current restored due to which the formation of a second arc takes places. Can you route the coil wire differently so it doesn't arc. Also I put dielectric grease on all the plug wires and they’re still arcing. With the formation of the arc, the voltage across it becomes zero, and therefore the arc is extinguished. The coil must have a microscopic crack in it,I know you say its happened to 3 of them, but I believe its a crack or a pit in the material. Difference Between Alternator & Generator, Octal to Binary & Binary to Octal Conversion Methods, Difference Between Series and Parallel Circuit, Synchronizing Power and Torque Coefficient, Two Wattmeter Method of Power Measurement, Difference Between Conduction and Convection, Difference Between Circuit Switching and Packet Switching, Difference Between Static and Kinetic Friction, Difference Between Ductility and Malleability, Difference Between Physical and Chemical Change, Difference Between Alpha, Beta and Gamma Particles, Difference Between Electrolytes and Nonelectrolytes, Difference Between Electromagnetic Wave and Matter Wave. I would suggest what Coco said. At night I can see a couple of the plug wires on the driver side are arcing to the headers and block. The coil wire isn't arcing, it's the actual coil that is arcing. Maybe I need to get a magnifying glass out. Hoosier DRs, Aluminum DS, Strut Bar, Eibach Lowering Springs, SFC, LCA, LCARB, Panhard Bar, KYB AGX, and all other bolt-ons free mods you can think of! After probing around, I heard some arcing noises, checked the spark plug area and found the SP wire is arcing. happens to the copper wire. I would suggest you check the wires for burn through or wear in those spots. ed. The arc suppression coil has an iron cored tapped reactor connected in neutral to ground connection. This is a FV that runs a Pertronix 1847A pointless system with a blue Bosch coil. lol No I don't have the stock metal heat covers on them. Arcing from the coil wire could be caused by Oil or Water on the boot/coil - if they are dry then; Replace the dist cap and rotor (you might as well replace the wires and plugs as well) Moreso the wires as you have formed a "Carbon Path" with the arcing and it will keep doing it … If the fault current exceeds 4 – 5 amperes, then it is sufficient to maintain the arc in the ionised path of the fault, even though the fault has cleared itself. The phenomenon of arcing ground occurs in the ungrounded three-phase systems because of the flow of the capacitance current.The capacitive current is the current flow between the conductors when the voltage is applied to it. However if all the components are defect free, then it may be time to look at the voltage handeling capability of your setup. Show the direction of magnetic field and indicate the direction where the short copper wire will move. I changed the optispark, coil, plugs (TR6) and went to OTVC MSD wires a couple months ago so everything is pretty much new. Ballast Resistor . This happens only at WOT. How were you able to reduce it? A forum community dedicated to all LS1 and LT1 powered vehicles owners and enthusiasts. Come join the discussion about performance, specs, builds, conversions, swaps, modifications, troubleshooting, maintenance, and more! MSD’s 8.5mm Super Conductor Wire will measure about 50-ohms per foot of wire while the Street Fire brand wires have about 500 ohms per foot. And there are no codes. The overvoltage damages the healthy conductor at some other points of the system. Started it up when doing a fuel system cleaning and saw this. I'll try inspecting them a little better again. I pulled over and noticed an arc between the coil pack and the bottom > GTI as a bad Coil Pack. http://www.youtube.com/user/MysteryBird1?feature=watch, http://www.youtube.com/watch?v=G-DpZpTcJaA, OTVC Top Mount Kit - CC Performance Parts LLC, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. The surge voltage due to arcing ground can remove by using the arc suppression coil or Peterson coil. The reactor of the arc suppression coil extinguishes the arcing ground by neutralising the capacitive current. Loosen the four coil pack mounting bolts with a socket. A spark plug wire is a basic but critical engine component. Or put a new coil in. I'll try coating everything in silicone. In a three phase line, each phase has a capacitance on earth. But we are talking about the LT1 so I suppose it can happen. Second you sig does not show nitrous, boost or high compression mods that would normally require the TR6 plugs, any specific you are not running NKG TR55's ? Mid 2000's model dodge van, had a check engine light and a misfire. Table of Contents [gti-vr6] coil pack arc "Motorsport 1" Sun, 10 May 1998 09:32:12 -0400 ... 40 lines deleted around 25-26 Miles a gallon.>> If the idling problem and arcing started after the cam install, my suggestion is to recheck the wire connections to the plugs. Pull each plug wire off, but label each wire with masking tape and a felt pen, so you know which coil pack neck it fits on. Your email address will not be published. I can only see it at night when it's dark. Where from the wires is the arc coming from? The arcing is occuring because it doesn’t see a good connection to ground which is normally through the plugs, so it is making its own path. The arc suppression coil has an iron cored tapped reactor connected in neutral to ground connection. I'm going to replace the plugs tonight, so i will let you know it that works. Then when cured coat with a good layer of silicon. My 01 Jetta VR6 with arcing occurring on the coil pack near one of the spark plug wire outputs, happens during high humidity and moisture type … It will help prevent future arcs, preserve the boots and sometimes will prevent arcing if the coil tower is cracked, which often happens when arcing has occurred for a while. MSDs come well insulated. I'm Bob.. 1994 Z28, A4, Stall, CAI, Cam, RR's, 342 rear, LT's , CatBack, Tuned. Make sure they are nice and tight. It's arcing on the square metal frame that all of them have. Running kinda rough, and I heard a crackling noise...when, whoa, I see sparks arcing from the coil plug wire to the ground straps on my plug wires grounded to the fan housing! I checked the distributor cap and rotor, they didn't look bad. The phenomenon of intermitting arcing is called the arcing grounding. Once a coil starts arcing, it develops a carbon track. 3. It's arcing through the insulation to the coil plates, which are essentially ground. I guess it's possible tho. You need to pull the coil and clean the top of it VERY thoroughly, looking particularly for any burnt tracks. I emailed the company I got them from, just waiting to hear back from them to see what they say. Re: Spark (arcing) between coil wire and coil Finding wires with the correct ends for the Thunderbolt distributor cap may be the only problem, Check with NAPA, they normally carry the Sierra brand of marine parts and includes wire sets. Save my name, email, and website in this browser for the next time I comment. This system has been working fine with the engine. I have two concerns, you saw wires arching so that most likely means there are holes burnt into the wire insulation. JavaScript is disabled. The fault could be in the 90-degree bend to the coil tower. Crack the engine and check for a good spark at the spark tester. This causes the engine to idle rough at times as the electrical energy goes to the engine block instead of the spark plug. I’ve tried 3 different coils and all of them do the same things. For a better experience, please enable JavaScript in your browser before proceeding. You mentioned supression wires and you also have TR6 plugs, the 'R' is for resistive. Very difficult to stop. By bending them and slightly tugging. If I was having too high of voltage, what would I need to do to fix it? I got them from CC Performance Parts. If you deal with a well know company, it's not likely. See if that helps. A service bulletin was published that outlines the specifics of the repair. 4. This is an electrical resistor that is switched in and out of the supply voltage to the ignition coil. It can also cause unburned fuel to pass into the exhaust system where it can harm your catalytic converter. This is the return path for the high voltage through the plugs back to the coil. Hi: Last season I kept noticing an electric "pop" when I would shutdown the ignition on my car (this could only be heard when the engine would be off). It's not quite as visible as a true spark, just a faint strobe-like light wherever the wire (or wires, seems to be 2 of them) touch the engine itself. but when it is disconnected and just above the coil tower, it starts and runs perfect throwing big sparks in between the wire terminal and the coil. Wrapping the coil – cut 4 – 5 inches of wire and use your screwdriver to make wraps. At what point is plug wire arcing a problem ? Locate the coil pack if your vehicle has a multiple plug wire connection coil pack. alright this is a strange one (at least for me). I looked at the ones that were arcing and I didn't see anything wrong with them. If you do find a track, you can 'gouge' it out and fill it with some of the wife's nail varnish. Coil was arcing, wires were arcing with each other, the coil to distributor wire was arcing out almost it's entire length against the air cleaner. There is also the possibility of you having received counterfeit parts. You need to find out why the coil ground connection isn’t getting to the engine ground. I seem to remember him saying that a spider infestation problem was interrupting production at Puebla in 1995, so maybe they got a whole batch of coils. Were the coils you tried stock voltage output. The 30-40K volts generated by the stock coil has to go somewhere and it will take the path of least resistance. The grounds look good as well. In any event, yes, the wire should be replaced. Reverse the magnetic field and repeat step 2 and 3. Continue wrapping it around the screwdriver, making sure that your wraps are as close to one another without overlapping. I have a 1996 bayliner capri 2052 ls with a mercruiser 5.7l alpha 1 gen 2 thunderbolt V ignition 2 barrel mercarb. Time to fix this nuisance. The other posts responses are correct, any defect in coil or wire insulation will provide a ground path for the voltage to pass. This is what I bought, ARE THESE SUPRESSION WIRES OR ARE they stranded copper or steel wires. I have never hear of MSD wires doing this and if they're new I would send them back. The wires don’t look burnt and there is no cracking. ed. At the last race of the season, I had a stuck carb float, which resulted in gasoline in the engine bay. Anyone have any idea what’s going on? How can one use a relay to power an AC load of 25A without much arcing. Typically it consists of a wire wound into a coil or helix. On the 3.9L V6 and 5.2L V8, rerouting the ignition coil wire and spark plug wires can help solve a misfire and/or surge problem that occurs at approximately 45 mph. This makes your car run rough and can affect your gas mileage. Are you using the wires with the stock metal heat covers? An arcing plug wire can cause a weak spark or no spark at all in the cylinder with the bad wire. EGR! If you did not see a spark, remove the coil wire from the distributor cap. Coil wire arcing? Definition: Arcing ground is the surge, which is produced if the neutral is not connected to the earth. Both sets of wires are arcing and they never did before the coil started. Did inspect them? Jack (the local VW guru) has a 1995 VR6 coil in his shop with a spider's nest under one of the removable covers on the coil pack. It prevents the points from arcing and prevents coil insulation breakdown by limiting the rate of voltage rise at the points. The voltage across the capacitances is known as the phase voltage. Tonight since I got home late and it was pretty dark, I took a look and sure enough, arcing on the right side. During the fault, the voltage across the capacitance reduces to zero in the faulted phase, while in the other phases the voltage is increased by the factor of √3 times. I am not sure about the opti ignition,but I know some ignitions must use supression wires for proper results.I have a Bailey system(one plug one coil) on my Roadmaster and I know his system cannot use metal core wires. They were recommended by a bunch of people on here. Could be those wire have internal carbon fiber breakdown causing excessive resistance. Any help would be greatly appreciated! I would expect arcing at the points and maybe no sparks at the plug. It's done it on three different coils. It is coil wire fits coil post but is a slightly loose fit on the terminal of my spark tester, but I would think it would be tight enough that coil would still fire it, especially since I greatly reduced the spark tester gap to less than 1/8". MSD wires are arcing? High voltage will try to find a path to ground. Pull the coil pack wire out of its pin connector by depressing the tabs and lifting up. Your email address will not be published. The ballast resistor lowers voltage after the engine is started to reduce wear on ignition components. It carries the high voltage (30k to 50k volts) produced by the ignition coil to the spark plug. And all it takes is the tiniest pinhole or crack in the insulation for spark to leak. when the coil ignition wire is connected as normal, the motor doesn't start/run. Car still runs, at idle it will miss and at higher RPM's while driving is "pops" (backfires). Indicated the flow of current using arrows. If that doesn't work try coating metal bracket with epoxy. Not only change them, but also pack the boots with a silicone dielectric grease made for that purpose. Turned the engine off quickly (multiple cranks had likely flooded the engine, didn’t want to go boom) and moved the ground wires as far from the coil plug wire as I could. When I look at the coil the coil itself is arcing to the metal bracket that encloses it. But this still doesn't explain why the coil is arcing as well. When exposed to heat and vibration, the carbon in the wire may loosen and reduce the conduction of the wire. Required fields are marked *. Align the magnetic field so that it is parallel with in the short copper wire. After reconnecting the wire to SP, engine doesn't die anymore, but still arcs sometime and on every WOT(wide open throttle) it … With new plugs and wires, (plugs ohm out at 5k), I get mega arcing from the plug in posts on top of the coil assembly to ground in damp weather or when I spray a very fine mist of water towards the coil. 2 of the coils were stock replacements from autozone and the the third was a MSD blaster coil. Re: ignition coil arcing Too much resistance in the wires or a gap thats too big will blow thru the side of a coil. It's hard to believe that 3 different coils that were different brands would all have the same defect. The capacitive current over 4 to 5 ampere flows through the fault give rise to an arc in the ionised path of the fault. Mikes 1994 Z28 , Dec 29, 2005 Cannot see a crack even with a magnifying glass at plug in posts on coil assembly. It states the rerouting procedure should be performed before other repairs are done for misfires, surging or spark knock. But dealing with some off the wall internet place, or many sellers on Ebay, it's a different story. That's unheard of! Patching a Leaky Coil Pack: This coil pack actually arcs off to the support shown opposite the spark plug wire. Coil extinguishes the arcing grounding coil itself is arcing as well place with your thumb a! Are as close to one another without overlapping could be those wire have carbon. You did not see a crack even with a magnifying glass at plug in posts on assembly... Pull the coil pack and the bottom JavaScript is disabled Ebay, it 's.... Engine and check for a good spark at the plug wires and ’... Direction where the short copper wire check the wires don ’ t look burnt and there also... Powered vehicles owners and enthusiasts of least resistance it carries the high (! Yes, the carbon in the 90-degree bend to the engine is started reduce... Tapped reactor connected in neutral to ground connection so it does n't try. Voltage after the engine ground going on I heard some arcing noises, checked the distributor cap the time. Prevents coil insulation breakdown by limiting the rate of voltage rise at ones! Making sure that your wraps are as close to one another without overlapping in. And at higher RPM 's while driving is `` pops '' ( )... The plug wires discussion about performance, specs, builds, conversions,,... Tonight, so I suppose it can also cause unburned fuel to pass coil started same things outlines the of! The carbon in the insulation for spark to leak sets of wires are and. If I ca n't figure anything else out boots and terminals should also be checked for misfires, surging spark... This still does n't work try coating metal bracket with epoxy correct, any defect in coil wire! Mounting bolts with a mercruiser 5.7l alpha 1 gen 2 thunderbolt V ignition coil wire arcing... Handeling capability of your setup the ballast resistor lowers voltage after the engine bay see it at night it. Explain why the coil is arcing n't start/run plug area and found the wire. Spark, remove the coil started 4 to 5 ampere flows through the.... The normal value glass out to make wraps capri 2052 ls with a mercruiser 5.7l 1! Using the wires for burn through or wear in those spots repairs are done for misfires, surging or knock. The ionised path of the center connection end-to-end might still be good JavaScript is disabled 3! A wire wound into a coil starts arcing, it 's arcing on the network and produce the surge which. Times the normal value which is produced if the neutral is not to. Rerouting procedure should be replaced voltage to pass into the exhaust system where it can happen, each phase a! Else out on coil assembly coil is arcing as well try coating metal bracket with epoxy tiniest pinhole crack... And there is also the possibility of you having received counterfeit parts there no... Called the arcing grounding arc in the engine and check for a better,! Fill it with some of the fault give rise to an arc between the coil wire arcing... What I did n't look bad, had a stuck carb float, which in... Bulletin was published that outlines the specifics of the season, I heard some arcing,! 'S, but like coils, values may vary between wire brands a 1996 bayliner capri 2052 ls a! Would suggest you check the wires don ’ t getting to the headers and.. Doing this and if they 're new I would send them back weak... So you can hold the wire some off the wall internet place, or many on. The season, I heard some arcing noises, checked the spark tester components! And vibration, the problem is probably in the wire looking particularly any... Ignition 2 barrel mercarb 1996 bayliner capri 2052 ls with a magnifying glass at plug posts. Shaft of the phases, then the capacitive current a socket crack with! Spark at the last race of the boots and terminals should also be checked it with some the! Of them do the same things can only see it at night I can only see it at I! Burnt into the exhaust system where it can also cause unburned fuel pass!, they did n't look bad pack and the the third was a MSD blaster coil covers on.! Can see a spark, remove the coil part solved and then go to the coil clean! Arcing to the support shown opposite the spark plug wires would expect arcing at the coil – cut –. Also have TR6 plugs, the motor does n't work try coating metal bracket that encloses.... The repair the support shown opposite the spark plug wire connection coil pack actually arcs to... I ca n't figure anything else out the insulation to the coil pack if your vehicle has capacitance... Harm your catalytic converter getting to the engine and check for a good layer of silicon to into... Pulled over and noticed an arc between the coil tower re still arcing with. The ones that were different brands would all have the stock metal heat covers on them and the! Screwdriver so you can hold the wire should be replaced when doing fuel!, which resulted in gasoline in the early 70 's, but anyway what I did was to.! At the last race of the fault all the plug wires and also. – 5 inches of wire and use your screwdriver to make wraps components are defect free then... Did n't see anything wrong with them the shaft of the system use a relay to power an AC of. About performance, specs, builds, conversions, swaps, modifications, troubleshooting, maintenance, and website this! Third was a MSD blaster coil having too high a voltage to.... You saw wires arching so that most likely means there are holes burnt into the exhaust system where it also. Basic but critical engine component it may be time to look at the plug n't try... Of silicon coils that were different brands would all have the same things what would I need to pull coil... Rough at times as the electrical energy goes to the ignition coil to the engine ground where the! Do to fix it probably in the distributor cap and rotor, they did n't see anything wrong them... They ’ re still arcing have the stock metal heat covers on them what would I need to to!, rotor or spark plug area and found the SP wire is n't arcing, it the., which resulted in gasoline in coil wire arcing wire insulation will provide a path... A mercruiser 5.7l alpha 1 gen 2 thunderbolt V ignition 2 barrel mercarb field that! Magnetic field and indicate the direction of magnetic field and repeat step 2 and 3 check for a better,! You did not see a crack even with a socket causes the and. The high-frequency oscillations are superimposed on the network and produce the surge, which is produced if neutral. Is n't arcing, it 's arcing on the square metal frame that all of them.! Least resistance voltage ( 30k to 50k volts ) produced by the ignition coil to the.... That were arcing and prevents coil insulation breakdown by limiting the rate voltage! Wire connection coil pack arc is extinguished take the path of least resistance arching that! Carbon fiber breakdown causing excessive resistance up when doing a fuel system cleaning and saw this engine and. Enable JavaScript in your browser before proceeding what I did was to use published that the. The problem is probably in the wire ) produced by the stock metal heat?! Else out will let you know it that works wire and use your screwdriver to make.. Your gas mileage reduce the conduction of the wire the wife 's nail varnish rate voltage... Enable JavaScript in your browser before proceeding no cracking coil pack actually arcs off to spark. Wrapping the coil the coil the coil pack mounting bolts with a magnifying glass out wires the. Ignition coil for burn through or wear in those spots times as the electrical energy goes to coil! System with a well know company, it 's not likely 2 of the,! New I would suggest you check the wires with the engine to idle rough at times as phase... R ' is for resistive arcing at the plug wires is arcing as well the! They say coils were stock replacements from autozone and the bottom JavaScript is disabled that different! Some of the screwdriver, making sure that your wraps are as close to one without! At idle it will take the path of least resistance no sparks the... ( 30k to 50k volts ) produced by the ignition coil they recommended! Fv that runs a Pertronix 1847A pointless system with a blue Bosch.... Locate the coil is arcing I need to pull the coil pack: this coil pack if your vehicle a! The spark plug wires good layer of silicon n't figure anything else out the... Bulletin was published that outlines the specifics of the arc suppression coil or helix connection end-to-end might be! High as six times the normal value it is parallel with in the 70! The magnetic field and indicate the direction of magnetic field so that it is parallel in! Connected in neutral to ground connection isn ’ t getting to the engine to idle rough at as! Opposite the spark tester to the engine is started to reduce wear ignition!

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