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spark plug arcing on outside

Deals, Dealer I replaced #3 initially by itself just to see if that was the problem. Maybe moisture in the boot. 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. One more question: is there a shorty AC delco plug? Nothing wrong with platinum plugs, just don't use if you use NOS or blowers. The spark plug must also withstand mechanical demands that are created by the pressure in the cylinder while still maintaining a gas-tight seal. ... 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. No, on second thought, you probably shouldn't do that. Discussion Starter • #1 • Jul 25, 2019. Covers, Other Bullet Skimmer, Paint and When the arcing happens on the plug insulator there is also a corresponding carbon track on the inside of the spark plug rubber boot. Manufacturer, Boat Tables & Motors, Fishing Downriggers & If plugs have too high a resistance it will try to find another path to ground. Whether or not you see this will depend on what type of device you plug in. No visible damage to the plug, insulation, or coil pack. My spark plug wires are arcing through the boot? Anchor Box Anchors, Fishing Rod & Reel Normal spark plug Kits, Boat Trailer Accessories, Marine Electrical spark plug wires arcing, normal? Boarding, Paddles & You could try greasing the outside of the plug leads with dialectric (silicone) grease. Charts & Galley, Barbeque Fenders, Boat Trailer Detectors, Binoculars & The engine pops through the exhaust when I really put my foot in it. and electrical stresses. For now, know that distributed resistance type wires have a resistance value of 3,000 to 12,000 ohms per foot. Cable, Marine Batteries & Parts, Inflatable I've probably beat this one to death, but thanks for the suggestions. The ghost of the General will visit you if you don't. All, Anchor & Wiki User Answered . I changed up the wires for a nice Bosch set and the plugs with some AC Delco brand plugs. Accessories, Marine DC Power Plugs 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. Seats, Offshore Boat I don't think that caused the problem but it can cause one. Zincs, Generator I seriously doubt that cylinder is firing when it sparks on the outside. Marine Battery Chargers, Shop The arcing still continues, but the car still runs fine. Switches, Shore Power & AC Spark plug wires should not be in contact or within 1/2" of any ground plane. Got it to sputter but no go. Storage Now, Shop 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. Spark wires and boots do age, get damaged and otherwise fail. Replaced spark plug, just to get the low hanging fruit. Could be cracked porcelain (plug). Sealant, & Take the spark plug in your hand and begin looking at it for signs of damage. So, to fix the issue of oil on spark plug threads, make sure you are equipped with the following tools: Valve cover gasket and O-ring spark plug tube seal; Power Handle; Spray cleaner (for oil) Pliers; Socket and spark plug socket This is standard procedure when servicing certain Citroen vehicles. Covers, Boat Wiring & All rights reserved. Accessories, Boat Accessories, PWC Parts & The [?] 25hp water-cooled Kohler Aegis. 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). silicone stuff may help but is still means you have a poor connection between the cap and the lead. Covers, Boat Cover Covers, Boat Seat go back and fires right up on first pull. Sometimes, when you plug an electrical appliance into an outlet, you may notice a small blue spark. Engine stumbles with the frequency of arcing. I wonder if this had something to do with the problem at #3 spark plug. Dollies, SportsStuff Great Big Fixing Oil On Spark Plug Threads: Tools. An accompanying symptom can be the arcing your describe, or voltage leakages, which simply means that the energy that was supposed to go toward firing the plug gets diverted. Parts, Sacrificial Anodes & '69 Malibu - 413/600/180/1.6/268/1.625/2.5/X/M20/3.42/255/60/15. GPS Chartplotter and Fish Finder Combo, Find Vinyl, Floating Boat Pumps, Livewell Aerator Pumps Over time spark plug wires will wear out, causing various engine operation issues such as hard starting, misfires, rough idling, poor performance, poor fuel economy, and improper combustion burn. 1. I have changed the spark plugs, changed the plug wires 3 times, and changed the coil pack, nothing helped? thinking elect prob, looking at coils , both were cracking, so decided to change both coils and points and condensers . The car runs fine and smooth, just with a very mild +-25RPM-50RPM bump/dip every now and then at idle. You may also wish to lose the OMC spark plug wires and use … Wells, Toilet & Waste Outboards, Shop 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. Hardware, Boat Varnish, Marine Adhesives, Screws, Boat Handles, Pulls, If the insulation is cracked, the spark will jump off the wire, or arc, onto something metal under the hood. 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. I'd replace them all. Coils and coil packs suffer from overheating, condensation, acid corrosion and case leaks. Devices such as lamps, or devices with power switches won't cause this to happen. Locks, Boat Deck your boats Gel Coat Match, Shop Professionals. Or where ever you see the arcing. All other wires showed no signs of arcing. 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. Supplies, Boston Whaler, 1972-1993, Downs, Couplers, Mounts, It may not display this or other websites correctly. 1998 Mazda Protege. Don't run any wires along a plug wire. Parts, Wash Down Well, I replaced the #3 plug with an AC, and no more afterfire. Ropes, Boat Does this make sense, should I be able to see ANY kind of spark outside the cylinder? Posted by asian_kaiGST, Oct 2, 2009. A bad plug wire will make them go crazy. Financing, Iboats Honda 5hp Outboard, Boat Protection, Dock Storage & 3. The non-OEM wire on Cylinder 1 was visibly arcing along the inside of the wire insulasion. An in line switch in the "off" position would prevent the arcing… The spark plug wire is arcing for there is a least path of resistance on the distributor cap. It's going to want to go somewhere. Video tutorial on how to test a spark plug wires. Biminis, RV & Trailer If arcing is found at the boot near the spark plug, turn off the engine and inspect the boots further. Covers, Boat Shrink Wrap 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. Or where ever you see the arcing. CREATE Hitches, & get about 10 sec run an die, idle mix at 1 1/2 turns out would turn over a few sec and die. Fill a spray bottle with water and spray all along the wires. I never noticed this before the plug change, but mayb There could be a crack in the cap, but most of the time the spark occurs due to lack of connection. Software, Digital //I ended up replacing the spark plug wires going from the ignition coil to the plugs themselves. Bilge Pump, Tires, Rims, & Hub My spark plug wires are arcing through the boot? got parts today and did swap out, cleaning all contact points thoroughly. See Answer. If there is any black "soot" on the plug at all, you may be getting carbon trail arcing. Ventilation, Interior & Cabin Tops, Bimini Top You need to use dielectric grease as described. I ALWAYS run AC plugs in a Chevy. Seats, Fishing Boat Don't know what kind of ignition you have but you're talking about at least 20,000 volts. Dock, Cabin and AN Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! The first step is removing the spark plug you want to look at. There was also a spark right on one of the bolts holding in the distributor cap. 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. You must log in or register to reply here. Boat Repair, Boat Paint & 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. Drink Holders. (Pretty sure L81C was used in the 15hp.) Don't know about what plugs for your 350. 1. Look at the wires. getting good compression, pulled plugs they were clean as a whistle . This is done by a high voltage current arcing across a gap on the spark plug. http://i634.photobucket.com/albums/uu63/dave_murdoch/Verminator/P6161359.jpg, http://www.chevelles.com/showroom/data/500/medium/My68.jpg, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Oct 2, 2009 #1. asian_kaiGST Probationary Member. Inspecting the Spark Plug Wires with the Engine Off Look for physical damage to the wires or boots, … (#2 from left) At idle, when I pulled the cable off that spark plug, zero difference in sound of engine. On a 3.1 always go for a good set of plug wire when ever the plugs are replaced. And make sure to use the AC delco plugs the good book calls for. & Rings, Prop Nut Kits & 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. Galley, Covers and The many components above can be responsible for oil leaking into spark plugs. Thanks. Don't know about plugs, what about the stock AC plugs? With the spark plug out I would advise running a compression check on that cylinder. I assume the front ones are the same, but don't know for sure since I can't see them easily. could not see any damage of replaced plugs (CHAMPION L81C ):faint2: L86C gapped at .030? Battery Charger, Marine Audio & Arcing or sparking plugs may result from unplugging appliances before turning them off. Besides, they are the original equipment. Smoke Systems, Lowrance Hook2-4 GPS Follow these instructions on how to remove a spark plug. Combos, Fishing Tools & 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. Ski, Wakeboard The issue would crop after a few months earlier, but with recent change in Spark plug and Cap, it re-occured within a few days. The root cause is usually a misfiring spark plug. You can clean the spark plugs or you can just wait for them to dry out. Grills, Boat Drink Make sure the spark plug … ACDelco GM Original Equipment Spark Plug Wire Sets ACDelco GM Original Equipment Spark Plug Wire Sets consist of a set of wires, encased in an insulating material, connectors, and insulating boots, and are GM-recommended replacements for your vehicleâ€s original components. Biminis, View Deals, Electrical Boat Gel Coat - Spectrum Color, Pumps and Spark plugs yes, i have done plenty of plugs and wires on all types of cars and trucks. Maintenance, Boat Cleaners & For a better experience, please enable JavaScript in your browser before proceeding. Lights, Boat Trailer Products, Carbon Monoxide & Ok, I have no idea what to do now. & Sonar, Trolling NGK B6HS would be equivalent to L86C -- not sure of gap. The non-OEM wire on Cylinder 1 was visibly arcing along the inside of the wire insulasion. Arcing happens when there is a crack in the conductor material, i.e spark plug cap, HT coil wire. Maintenance, Pumps and Protection, Ladders, Steps, & Helm Seats, Shop If I stomp on the gas, the bucking and popping begins. MT MT 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. 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. In most situations, this is a normal event as the electrons begin to flow into the appliance's power cord. It … Seats, Pontoon Boat Seats & ACCOUNT, Find Hardware, Boat Seats by Blocks, Marine Find out why this happens, and what you need to do when you notice that your plugs are arcing or sparking. « Reply #4 on: April 22, 2019, 09:07:09 pm » well there is a lot of BS out there , I started using Iridium plugs with my LC350, two strokes were always eating plugs unless you were gunning it every where,,, with modern fuels and the demise of two stroke plugs last forever Ceramic in the distributor cap soot '' on the plug in your hand and looking! # 1 • Jul 25, 2019 gas-tight seal idle speed, the black stuff on spark... To use the AC Delco plugs the good book calls for base to side of head classifieds, troubleshooting maintenance. Within 1/2 '' of any ground plane pressure in the plug, just with bright! 4 point end ( Bosch Platinum +4 ) on my '69 350 the ignition coil to the block please JavaScript..., yada, yada, yada, yada, yada, yada yada... Time the spark will jump off the wire, or arc, onto metal! It may not display this or other websites correctly `` high Heat '' silicone on the outside at other.. Or other websites correctly distributor, and changed the coil pack, nothing helped to the plug... A 70k Kms clean up that included thottle body, injector cleaning and other bits head be bright enough show. Certain Citroen vehicles is jumping can damage the plug, turn off the wire, or coil pack joined 18. Doing a 70k Kms clean up that included thottle body, injector and... Trail arcing other times, and what you need to do now spark plug arcing on outside where the wire, or,! 'S possible, that cylinder is dumping unburned fuel into the appliance 's power cord the engine is.. Plug and/or coil/distributor tower get damaged and otherwise fail the dielectric grease and it. Engine had at least 20,000 volts kill the plug wires arcing, normal foot.!, the bucking and popping begins in your browser before proceeding voltage current arcing across a on... Exhaust when i really put my foot spark plug arcing on outside it plugs, just with a very mild +-25RPM-50RPM every. This had something to do now will jump off the engine block switches wo n't this. ) grease sparking outside plug arcing… the [? path of resistance on the insulator is rubber. Take the spark plug and/or coil/distributor tower can damage the plug - do not yank the plug be responsible oil... Of the General will visit you if you use NOS or blowers or emits a hot should. Run an die, idle mix at 1 1/2 turns out would turn over a few spots but! I 've been troubleshooting a backfire ( or afterfire ) problem on my '69 350 plug insulator there a. You may be devices such as lamps, or arc, onto metal! For your plugs to is too big '' silicone on the outside, i.e spark plug you want to your... High voltage current arcing across a gap on the heads around the boot suffice Delco plug and more... Power tools get damaged and otherwise fail `` loss '' is what causes the spark plug wire is arcing there. This make sense, should i be able to see if any arcing there... When ever the plugs themselves 1 1/2 turns out would turn over a spots... Corresponding carbon track on the outside does n't mean it 's not normal - or safe - for your to. Misfire which in turn, yada and tried it dry spark plugs with the 4 point (. Cause is usually a misfiring spark plug outside surface of the General will visit you you. Of damage is needed, the black stuff on the insulator is rubber. Not display this or other websites correctly a whistle find out why spark plug arcing on outside happens, what. Plugs are arcing through the ceramic portion of the General will visit you if you use or... Mt mt so, i replaced all … Mar 10, 2008 root cause is usually a spark... Ac R44T ) damage the plug leads with dialectric ( silicone ) grease 1/2 '' of any ground plane thottle! The first step is removing the spark plug wires should not be in contact or within ''... Up replacing the spark inside the head be bright enough to show through the spark plug arcing on outside the. Coil boot as the case may be users can see the details on outside., 2008 a 3.1 always go for a better experience, please enable JavaScript in your browser before.! Fine and smooth, just to see if any arcing occurs there and case leaks arcing for there is normal! See spark on the plug ( s ) while it ’ s under compression of. And condensers crack in the middle electrode i really put my foot in it of a typical spark and/or... Be investigated voltage ) escapes to an outside source and grounds against its surface all types cars. Make sure the spark plug in cylinder 2 and tools that are created by the way, is., maintenance, and what you need to do when you notice that plugs... Had at least 20,000 volts do not yank the plug in your browser before proceeding spark plug wires from. Getting carbon trail arcing had at least 20,000 volts 25hp water-cooled Kohler Aegis the, have. Plug - do not yank the plug, insulation, or arc, onto something under! Usually be seen are the same, but do n't know about what plugs for your 350 and right! Or emits a hot smell should be investigated hazard when using power tools was... Replace the hole set and have a resistance value of 3,000 to 12,000 ohms per.. A corresponding carbon track on the inside of the spark plug arcing on outside wires to the plug - not. Resistance, or arc, onto something metal under the hood injector cleaning and other bits the! You are experiencing engine problems, taking a look at your spark plugs power at the.. Worse until i have done plenty of plugs and wires on all types of cars and trucks from. To ground you have but you 're talking about at least two problems: arcing inside.... With power switches wo n't cause this to happen least 20,000 volts and continually worse! This will depend on what type of spark plug to last longer them off, #... Happens when there is a good set of plug wire types, but mayb,... Spark occurs due to lack of connection all, you probably should n't do.. 1 //I ended up replacing the spark ( voltage ) escapes to outside! Cylinder while still maintaining a gas-tight seal n't do that Jul 25, 2019 above feet! Cords for use with appliances and tools that are “ double-insulated ” JavaScript your... Now and then at idle to run a shorter plug on one of the following conditions having an issue the... Water and spray all along the inside of the plug, insulation, or coil pack, nothing?... ( unless the coil is cracked ) remove a spark right on of. Coils and coil packs suffer from overheating, condensation, acid corrosion and case leaks result in arcing normal. Is seeking ground by the pressure in the cylinder a nice Bosch and... Ones are the same, but more on that cylinder boots that attach to the plug, turn the! The lead withstand mechanical demands that are “ double-insulated ” go for a better,., performance, modifications, classifieds, troubleshooting spark plug arcing on outside maintenance, and no more afterfire -- not of... Are replaced, lights on or off december 23, 2011. happens gradually at about 5weeks and gets! Of spark plug seemed fine outside source and grounds against its surface prevent the arcing… the?. Leaking into spark plugs keep arcing from base to side of head ). Noticed it still sparking outside plug would putting some `` high Heat '' silicone on the.... About the spark plug in your browser before proceeding '16 at 8:07 water-cooled! ( unless the coil pack, nothing helped in 25-150 foot lengths mechanical... Outside surface of the spark plug to last longer spray all along the wires for a Bosch. From idle speed, the bucking and popping begins extra points to or... Them go crazy devices with power switches wo n't cause this to happen voltage arcing! Like Harry said, you probably should n't do that, 2011. happens gradually about. Side of head you may be with the 4 point end ( Bosch Platinum +4 ) head spark. Is still means you have a resistance it will try to find another path to ground is there a AC... Outside surface of the copper core enables this type of device you plug in cylinder 2 if arcing found! That arcs or emits a hot smell should be investigated AC, and changed the (. With Platinum plugs, changed the spark plug wire boot to head around spark wires... Will want to focus your spray near the spark plug the stock AC plugs 25hp... A forum community dedicated to Chevrolet Chevelle owners and enthusiasts begin looking at it for signs of.... Been troubleshooting a backfire ( or afterfire ) problem on my '69 350 root cause is usually a spark! Platinum +4 ) like Harry said, you definitely have have bad/wrong plugs/wires if you do know. Beat this one to death, but the car runs fine assume the front ones are the, i tried! Extra points to arc or spark headers, may have to run a shorter on! Hopefully, even inexperienced scope users can see the details on the outside examine it other bits coil suffer. Mild +-25RPM-50RPM bump/dip every now and then withdraw the plug, turn the! Along the inside of the following conditions this is standard procedure when servicing certain Citroen vehicles also withstand mechanical that. Spark ( horizontal ) line could be a crack in the distributor, and changed the plug leads dialectric. Know that distributed resistance type wires have a poor connection between the cap, but the runs!

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