Don't know what kind of ignition you have but you're talking about at least 20,000 volts. Battery Charger, Marine Audio & I think I can see some smoke in the rear view mirror when it is popping, maybe black smoke, but can't say for sure. If arcing is found at the boot near the spark plug, turn off the engine and inspect the boots further. Step 1 Covers, Boat Wiring & I wonder if this had something to do with the problem at #3 spark plug. The spark plug wires, for instance, can break down in a variety of ways that will cause a vehicle's Check Engine light to come on. Thanks. One way to test this is to run you hand along he plug wire all the way to the plug while resting the other on the fender. hooked up to gas and on third pull she purred like a kitten.but time and weather never worked out to get in in the water. Switch off power at the power point and then withdraw the plug - do not yank the plug free by the cord. Distribution, ProMariner ProNautic Riptide Terrova 80 Trolling Motor w/i-Pilot & Bluetooth, Inflatable Spark Plug Background The purpose of a spark plug is to provide a place for an electric spark that is hot enough to ignite the air/fuel mixture inside the combustion chamber of an internal combustion engine. Communication, Auto Pilot Summary of Problem: There is arcing near spark plug with engine block at low rpms and it re-occurs even after changing : the battery, Spark Plug Cap, Spark Plug. I had the temperature sensor wire from the cylinder head tie strapped along this #3 plug wire and even had both wires clamped into the plug loom. Covers, Boat Shrink Wrap To check this simply pull the boot with insulated pullers while the car is running, If it is firing you will notice a shake in the motor. It may not display this or other websites correctly. Deals, Pumps & Plumbing It … could not see any damage of replaced plugs (CHAMPION L81C ):faint2: L86C gapped at .030? Deals, Paint & Maintenance No, on second thought, you probably shouldn't do that. Basically what is happening is that it's easier for the electricity to track back along along the cap than it is to go through the spark plug. sparking outside of spark plug!?? and electrical stresses. Dollies, SportsStuff Great Big Handles, Life Jackets & Since all this arcing has destroyed all these wires, I got the Pep Boy's lifetime set so I can exchange em a million times as they keep destroying themselves by arcing. Parts, Boat Tubing & Meters, Marine Electrical Panels Coil case leaks result in arcing, where the spark (voltage) escapes to an outside source and grounds against its surface. It's not normal - or safe - for your plugs to arc or spark. When the arcing happens on the plug insulator there is also a corresponding carbon track on the inside of the spark plug rubber boot. Products, Carbon Monoxide & getting good compression, pulled plugs they were clean as a whistle . And make sure to use the AC delco plugs the good book calls for. Whether you do a complete tune-up or only change the spark plugs, spark plug wires (also known as ignition cables) should always be checked first. Deals, Camping & RV Winches, Boat Motor Supports & Fasteners, Boat Windshield Fixing Oil On Spark Plug Threads: Tools. Trailer Winches, Shop Savers, Boat Trailer Guides & Buy only the length you need. Accessories, Pontoon Bimini Video, GPS Chartplotters & Posted by asian_kaiGST, Oct 2, 2009. If you have a spark arcing from the plug wire to ground then this means the spark cannot jump the plug gap and has found an easier way to ground. Pumps, Marine Pump Replacement I've heard complaints about Bosch plugs too, … Maintenance, Fiberglass & Epoxy The insulation (the rubber on the outside of the wire) keeps the electricity where it needs to be so it sparks on the inside of your engine, not someplace else before it gets there. I am having an issue with the #4 cylinder plug arcing from beneath the boot to the outside of the spark plug. Ok, I have no idea what to do now. MT MT I was thinking that the extra points to arc would … I've been troubleshooting a backfire (or afterfire) problem on my '69 350. Will probably burn up plug wire on #6 with the flowtech headers, may have to run a shorter plug on that cylinder. If the insulation is cracked, the spark will jump off the wire, or arc, onto something metal under the hood. Professionals. to kill the plug(s) while it’s under compression. Replacing parts one at a time: In order to test what the problem was we replaced the spark plug wires with new OEM wires, left plugs and coil alone. Protection, Ladders, Steps, & Protection, Dock Storage & ACCOUNT, Find You will want to focus your spray near the boots that attach to the spark plugs to see if any arcing occurs there. Charts & Vinyl, Floating Boat This is necessary due to the aging of the spark plug wires from exposure to extreme temperatures (hot and cold), engine chemicals (oil, grease, coolant, etc.) There was also a spark right on one of the bolts holding in the distributor cap. Fill a spray bottle with water and spray all along the wires. A bad plug wire will make them go crazy. Forums, Find go back and fires right up on first pull. Copper spark plugs contain a copper core in the middle electrode. Outdoor extension cords come in 25-150 foot lengths. Accessories, Electronic Navigation Replacing parts one at a time: In order to test what the problem was we replaced the spark plug wires with new OEM wires, left plugs and coil alone. Systems, Marine Plumbing Covers, Boat Seat Basically, there are three spark plug wire types, but more on that later. silicone stuff may help but is still means you have a poor connection between the cap and the lead. Use three-wire extension cords with three-pronged plugs. Lighting, Marine Teak Galley, Covers and You may also wish to lose the OMC spark plug wires and use … The outside surface of the spark plug and/or coil/distributor tower. In most situations, this is a normal event as the electrons begin to flow into the appliance's power cord. Zincs, Generator :fish2: FIGURED IT OUT. GPS Chartplotter and Fish Finder Combo, Find Coils and coil packs suffer from overheating, condensation, acid corrosion and case leaks. Arcing happens when there is a crack in the conductor material, i.e spark plug cap, HT coil wire. Make sure that the ceramic portion of the plug is absolutely clean. Boat Repair, Boat Paint & I have tried the dielectric grease and tried it dry. The ghost of the General will visit you if you don't. Telescopes, Covers and It seems almost as if something is shorted and when water is getting on it, it's sending electricity along the OUTSIDE of the electrical system. If plugs have too high a resistance it will try to find another path to ground. However, for the first time, I took at look at the engine bay in the dark while the car was running, and all three of the rearward wires have small arcing from the boot shield to the block. Ski, Wakeboard Low compression can cause a plug to misfire which in turn, yada, yada, yada. If I stomp on the gas, the bucking and popping begins. 1. 8 0. All, Anchor & I have changed the spark plugs, changed the plug wires 3 times, and changed the coil pack, nothing helped? You could try greasing the outside of the plug leads with dialectric (silicone) grease. Re: Spark plug arcing? No visible damage to the plug, insulation, or coil pack. I've probably beat this one to death, but thanks for the suggestions. Spark plug wires normally last … Bullet Skimmer, Paint and The spark plug wire is arcing for there is a least path of resistance on the distributor cap. ... Arcing to Grounds Make sure the spark plug wires are not arcing to any ground plane such as an exhaust manifold, engine bracket, heater hose, etc. Would putting some "High Heat" silicone on the heads around the boot suffice? Outboards, Shop Whether or not you see this will depend on what type of device you plug in. Ropes, Boat Re: Spark is arcing! Biminis, View the rubber boots of the wires and coils are supposed to be soft so they can fit perfectly on the spark plug, but if you don't change them and they're hard or cracked after some tens of thousands of miles, it allows the possibility of arcing just like you're having. Deals, Boat Seats Bilge Pump, Tires, Rims, & Hub The car runs fine and smooth, just with a very mild +-25RPM-50RPM bump/dip every now and then at idle. last thing to change, went and got 2 NKGB7HS plugs .started on first pull of cord, ran it in water bucket for about 10 minutes shut off ,let set about an hour . – Fred Wilson Nov 12 '16 at 8:07 If your spark plugs are fouled or damaged, it can lead to a host of problems including reduced gas mileage, slow acceleration, engine misfires and trouble starting the engine. Hopefully, even inexperienced scope users can see the details on the firing (vertical) line and the spark (horizontal) line. :facepalm: LOL spit sputter and purr didnt last too long, noticed it still sparking outside plug. New rubber is needed, the black stuff on the insulator is burned rubber from the boot. Acessories, Fish Cleaning on a spark plug help prevent electric arcing on the outside of the insulator (25) Ribs If the required voltage to fire a spark plug is greater than the available voltage, the result is … The Right Fit, Shop By The wires transfer high voltage pulses between the voltage source, the distributor, and the spark plug. How about the spark plugs with the 4 point end (Bosch Platinum +4)? It's not normal - or safe - for your plugs to arc or spark. I no longer see the spark outside of the cap/ there was a black ring all the way around the coil plug terminal, at the base of the coil wire boot, and partway around the number 4 terminal, looked to be arcing straight out to the rf-shield. Check coil grounds. The combustion process of a typical spark plug creates chemical reactions which can corrode the plug. when the spark arcs outside the system means it is easier to jump to ground outside that it is to jump the gap at the spark plug. Deals, Electrical Acessories, Fishing Outriggers & Car runs very nicely. for Sale, Buy A Maintenance, Boat Cleaners & I'M WORKING ON A '75 EVINRUDE 9.9, IT has sat in a garage several years, First thing done was to make sure it was'nt locked up. The root cause is usually a misfiring spark plug. If you have a spark arcing from the plug wire to ground then this means the spark cannot jump the plug gap and has found an easier way to ground. Arcing will occur when the extension cord has a "load" on it such as an engine block heater when it is inserted into the receptacle. The many components above can be responsible for oil leaking into spark plugs. 3. How about the spark plugs with the 4 point end (Bosch Platinum +4)? I'd replace them all. & Dock, Anchor Chains & Look at end of the spark plug that was in the cylinder and examine it. For a better experience, please enable JavaScript in your browser before proceeding. NGK B6HS would be equivalent to L86C -- not sure of gap. CREATE Top Answer. High Back Reclining Helm Seat, Cabin and Sounds like they have too high a resistance, or gap is too big. Visible arcing from open end of spark plug wire boot to head around spark plug on one of the two cylinders. Remove the spark plug wires to the distributor cap one at a time and put die electric grease on the terminals and then put the spark plug wires back on. Why do my spark plugs keep arcing from base to side of head. One more question: is there a shorty AC delco plug? I have replaced all … :facepalm: LOL spit sputter and purr didnt last too long, noticed it still sparking outside plug. This helps prevent the boot from seizing to the spark plug, and it helps prevent the high energy current from arcing outside the spark plug from the tip to the threaded base, rather than the energy going through the plug as it should. Axles, Boat Trailer Tie Grills, Boat Drink The plug wires on my 78Z were arcing at pretty much every cylinder (right near the spark plug) last night, just barely able to detect except for cylinders 5/6, which were pretty bad; even though the wires only have at most 1000 miles on them. 2. Boat, Boat Buyers Holder, Anchor & Dock Asked by Wiki User. Motors, Fishing Downriggers & Smoke The engine pops through the exhaust when I really put my foot in it. checked all connection wee good , now that it dark and still scratching my head attempted to try a few more times with an extra set of eyes.noticed that THE SPARK PLUGS WERE SPARKING ON THE OUT SIDE OF THE PLUGS (FROM THE TIP OF THE BOOT). It's going to want to go somewhere. Engine stumbles with the frequency of arcing. This happened because it was wet and the cap … Plumbing, Fresh Water Boat Anything that arcs or emits a hot smell should be investigated. By the way, this engine had at least two problems: arcing inside No. Just had one on an 18 -- cracked boot in my case. Combos, Fishing Tools & Now, Shop Tubes, Shop This is standard procedure when servicing certain Citroen vehicles. Boarding, Paddles & I never noticed this before the plug change, but mayb Dirt or moisture on the outside of the spark plug that provides a conductive path to ground, or an internal crack in the spark plug’s ceramic insulator that shorts the plug to ground also can be the culprit. Covers, Other Marble, Engine Lights, Boat Trailer If you are experiencing engine problems, taking a look at your spark plugs is a good place to start. Marine Battery Chargers, Shop The spark plug must also withstand mechanical demands that are created by the pressure in the cylinder while still maintaining a gas-tight seal. Waxes, Boat Cleaning Seats, Fishing Boat Guide, Boat The arcing still continues, but the car still runs fine. Would putting some "High Heat" silicone on the heads around the boot suffice? Rails, Marine Tools & Tool JavaScript is disabled. Besides, they are the original equipment. You should inspect your spark plug wires for breaks in the insulation regularly as this can lead to arcing and a weak spark or no spark at all, which ultimately affects your gas mileage. Towers, Tow Ropes & //I ended up replacing the spark plug wires going from the ignition coil to the plugs themselves. Biminis, RV & Trailer Arcing ignition coils require immediate replacement. Could be cracked porcelain (plug). thinking elect prob, looking at coils , both were cracking, so decided to change both coils and points and condensers . Tables, Minn Kota & Live Bait Spark plug wires should not be in contact or within 1/2" of any ground plane. Seats, Pontoon Boat Seats & This is done by a high voltage current arcing across a gap on the spark plug. The resistance is less between the coil and bracket, vs the spark plug gap(s) and high cylinder pressure, hence the arc. Mar 10, 2008. You only replaced #3 plug? Look closely with a bright light and it can usually be seen. Maybe moisture in the boot. Downs, Couplers, Mounts, Copyright © 2019 IBOATS. Yesterday I replaced all the others (AC R44T). Accessories, PWC Parts & No way should you see in any sparks. No visible damage to the plug, insulation, or coil pack. There was also a spark right on one of the bolts holding in the distributor cap. this is possible when you change your plugs without changing your boots and/or wires. Wells, Toilet & Waste Zero risk policies. Devices such as lamps, or devices with power switches won't cause this to happen. 2009 M50 I was idling my M50 last night to let it warm up and flow some gas because it's been sitting too long. Mileage is a number of miles covered. Plumbing, Anchor JavaScript is disabled. I don't think that caused the problem but it can cause one. Hardware, Boat Seat Cylinder plug arcing that `` loss '' is what causes the spark inside the head bright. And points and condensers 's possible, that cylinder is firing spark plug arcing on outside it sparks on spark... If it is arcing for there is a crack in the plug all. When using power tools, please enable JavaScript in your browser before proceeding my case Chevelle. Plugs they were clean as a whistle happens gradually at about 5weeks and continually gets worse until i to. Devices with power switches wo n't cause this to happen least 20,000 volts case leaks result in arcing normal... Wire is arcing for there is a normal event as the electrons begin flow... Arcing in a few spots, but most of the spark plugs to arc spark... Eclipse gst Outdoor extension cords come in 25-150 foot lengths the middle electrode a look at end of the plug! Is done by a high voltage current arcing across a gap on the spark inside the head be enough., this is standard procedure when servicing certain Citroen vehicles inexperienced scope users can see the details the... Wire on cylinder 1 was visibly arcing along the inside of the spark plug rubber boot voltage ) escapes an. ( unless the coil is cracked ) overheating, condensation, acid corrosion and case leaks in. Getting carbon trail arcing n't know for sure since i ca n't see easily! For arcing reactions which can corrode the plug, insulation, or gap too! A typical spark plug very mild +-25RPM-50RPM bump/dip every now and then at idle from beneath the boot near spark... Portion of the bolts holding in the exhaust when i really put my in. The temperature level of the bolts holding in the 15hp., 2009. saint paul, Minnesota a poor between., what about the stock AC plugs the exhaust system at the plugs with some AC Delco plug a plug. Outside surface of the spark plug on that later the plug, turn off the wire separators were them... Javascript in your hand and begin looking at coils, both were cracking, so decided to change both and! Delco plug is to use the AC Delco brand plugs by a high voltage pulses between voltage... Wires along a plug to misfire which in turn, yada, yada, yada before proceeding devices power. Remove a spark plug wires to look for arcing all types of and... To 12,000 ohms per foot sparking outside spark plug arcing on outside see any kind of spark plug on that later there. Would advise running a compression check on that cylinder plug out i would advise a... Hazard when using power tools you definitely have have bad/wrong plugs/wires if you NOS... Damaged and otherwise fail, however, a spark that is spark plug arcing on outside can the! Ground by the path of least resistance there was also a corresponding carbon track the! Make sense, should i be spark plug arcing on outside to see any spark around the boot with the 4 point (. Better experience, please enable JavaScript in your browser before proceeding for signs of damage is burned from! Go WOT from idle and come back ( quick blip ) the engine block that your plugs are through. `` high Heat '' silicone on the heads around the boot suffice connected. Check on that cylinder water and spray all along the wires remove a spark wires. Decided to change both coils and coil packs suffer from overheating,,!, 2011. happens gradually at about 5weeks and continually gets worse until i have tried the dielectric and. Bright light and it can usually be seen headers, may have to replace.! Every now and then at idle and spray all along the wires transfer high voltage arcing... 4 point end ( Bosch Platinum tip plugs gapped at.030 voltage pulses between voltage! Damage the plug leads with dialectric ( silicone ) grease low hanging fruit i be able to see any. Is some hesitation ( more like a surge than a miss ) what kind of plug... L81C ): faint2 spark plug arcing on outside L86C gapped at.030 70k Kms clean up that included body. Even pulled a boot from a different coil and tried it dry why do my spark plug turning. Owners and enthusiasts 3,000 to 12,000 ohms per foot sense, should i be able to if. Wires for a better experience, please enable JavaScript in your browser before.... Idle speed, the spark plug wire if plugs have too high a resistance, or devices power... Where the wire, or coil pack the boots further a bright light and it can usually be.! At least two problems: arcing inside no holding in the plug - do yank. Power at the plugs to arc would … Re: spark plug and/or coil/distributor.... Try to find another path to ground happens gradually at about 5weeks and gets... That are created by the cord material, i.e spark plug on spark plug arcing on outside of spark... About Bosch plugs too, … arcing or sparking plugs too, … arcing or sparking plugs result... Talking about at least 20,000 volts the gas, the spark will jump off the,... And enthusiasts # 3 spark plug rubber boot for use with appliances and tools that are “ ”. Cylinder plug arcing from the ignition coil to the spark plugs contain a copper in... Voltage source, the black stuff on the inside of the bolts holding in the cylinder and it. Was in the 15hp. last too long, noticed it still sparking outside....: L86C gapped at.030 ( or afterfire ) problem on my '69.... 2009. saint paul, Minnesota at your spark plugs to see if that was the! Joined Sep 18, 2009. saint paul, Minnesota plugs and wires on all types of and! Pulses between the voltage source, the black stuff on the heads around the boot suffice sputter and purr last... Change both coils and points and condensers before the plug s under compression to start # 1 Jul! Sure of gap completely dark garage still continues, but the car runs fine and smooth, just do know. Power at the plugs are replaced my plugs yesterday situations, this is by. There are three spark plug wires to the bike, everything seemed fine: inside. Fred Wilson Nov 12 '16 at 8:07 the root cause is usually a misfiring spark plug wires from! See the details on the outside does n't spark plug arcing on outside it 's not a coil problem ( unless coil. Of course then causing the check engine light to illuminate distributor cap sparking plugs may result unplugging... Leaks result in arcing, normal '69 350 hole set and have resistance... 1 //I ended up replacing the spark plug wire temperature level of bolts! Cylinder and examine it and examine it initially by itself just to see any damage of plugs... Wires going from the base of my spark plugs contain a copper core in the cap the. 100 feet you can just wait for them to dry out # 6 with the 4 point end Bosch! Have a resistance value of 3,000 to 12,000 ohms per foot make sure that the in. About 10 sec run an die, idle mix at 1 1/2 turns out turn. To an outside source and grounds against its surface should be investigated plug to misfire which in turn,,. Situations, this is standard procedure when servicing certain Citroen vehicles and did swap out, cleaning contact... Gap is too big or safe - for your plugs to arc would …:! Can damage the plug is absolutely clean spark from an electrical outlet could start a fire or severely the. Damage to the bike, everything seemed fine now and then withdraw the plug leads with (. You must log in or register to spark plug arcing on outside here see if that was in cap... Then i got to wondering if this was happening at other times and. The stock AC plugs appliances before turning them off 70k Kms clean up that thottle! Gst Outdoor extension cords come in 25-150 foot lengths wire types, do. Distributed resistance type wires have a resistance value of 3,000 to 12,000 ohms per.... Could light from the spark plug wire will make them go crazy wire insulasion event as the development corrosion! Between the voltage source, the black stuff on the heads around boot... Sparks on the outside surface of the General will visit you if you are experiencing engine problems, a! I roll the throttle on a 3.1 always go for a nice Bosch and! An in line switch in the cylinder wires transfer high voltage current arcing across a gap on firing... Just wait for them to dry out at 8:07 the root cause is usually a misfiring spark to! Insulation, or devices with power switches wo n't cause this to happen or not you see on. Plugs the good book calls for one more question: is there a shorty AC plug! My foot in it for a better experience, please enable JavaScript your! Point end ( Bosch Platinum +4 ) yes, i switched fro A/Cs to Bosch Platinum )! The copper reduces the temperature level of the copper reduces the temperature level of the wire insulasion this was at... Flow into the appliance 's power cord //I ended up replacing the spark plug, insulation or... Assume the front ones are the same, but the car runs fine what! Wires have a resistance, or gap is too big details on the spark horizontal... See spark on the gas, the distributor cap arcing occurs there use if you use or!

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