The top of the electrode that protrudes out of the center of the plug is flat when new. The rule of thumb is to replace spark plugs at around 30,000 miles. The gap should be set at. I have a 97 Aurora, with the 400 Northstar V8. Ialso have snap-on industrial ext. If you need to take your plugs out to check them or clean them or gap them, here is how. Metric/mile button that means EPS system find out some 5. If you know your surge protector has absorbed a serious power surge, you should probably replace it immediately. Over tightening can cause distortion resulting in a change in the spark plug gap. Look closely at your spark plug and check for heavy damage or deposits. Probably will do it myself. You have a about a 90 degree window that the plug CAN NOT face, that leaves 270 degree the plug can go. The problem with Kawasaki 4-stroke owners is, they over tighten the plugs, not lack of anti-seize. The plug recesses make it a little hard to mess up, but be careful anyway. Well it happens sooner or later, bigger engine, without changing the car all that much, you look at the maintanece items. Be sure to put antiseize not only on the threads, but on the bottom of the spark plug itself so the next set of plugs will go out more easily. Just follow the box on most spark plugs that recommends the proper amount of turn on a wrench after hand tightening, etc. There is a right and wrong way to install the spark plugs on your Rotax 912 series engine. Spark plug service intervals haven’t changed in recent years. Newer ones can last up to 100,000 miles. The book was written before Irridium plugs were used. Q: Can old spark plugs be cleaned? A: Yes, you can clean spark plugs. Yet when spark plugs start to malfunction, the result can be rough. I figure it's a good time to check the plugs for oil fouling or any other problems. Note: You do not use the socket with the rubber insert to tighten the spark plug, as the spark plug may be quite tight in the socket, and removing the socket from the spark plug difficult. Read up and it seems that this may be caused by loose plugs. Check and adjust the spark plug gap if necessary. You can still use penetrating oil to help but its ok if theyre hard to remove. If you are positive you have spark then do a compression check. At the Green Spark Plug Co. How to Change Your Spark Plugs. You just remove the old spark plugs, make sure the gap is correct on the new ones, then screw them back in. The one on the air cleaner housing comes to mind. I tried pb blaster over night and tightening/loosening method, cold engine/hot engine and still couldnt not remove that thing. Eventually, with a bit of luck, you'll get it to move slightly. In almost every case of a spark removing the threads on the way out a close inspection. Now take your new spark plugs and insert it into the end of the 5/8 spark plug socket, should you choose; apply a thin bead of anti-seize to the spark plug threads. Spark plugs last about 10,000 miles. I do like the freezing the plug option to shrink before the final reef is applied - and that is the day after you perform procedures to get some penetrant in there. If you have a concern, you could check the plugs, remove the coil pack (you might want to buy several spare boots, they tend to get stuck to the head, removal might destroy them, most autoparts places now carry them) then try to tighten the plug (torque wrench would be handy if you have it), you don't need to wrench it hard. If half the wire is going to the fusebox it should have spark? Why does the other half of the wire go to the ign switch?. You can also use two blades at the same time if you have a spark plug with an odd gap size. This will only happen when the rear cylinder stops on its compression stroke. Right from the FSMdoes not mention any use of anti-seize for either the 2. Issue Applying anti-seize to the threads of spark plugs that have a metal plating allows the installer to mistakenly over-tighten the spark plug in the cylinder head; This stretches and fatigues the threads of the spark plugs, causing a much higher probability that the plug will break during installation or in some cases upon removal. Now take the spark plug wire you pulled off earlier, put a lil spit in the end of it (makes it slide on way easier) and push it onto the spark plug until you feel or hear it snap onto the connector inside. About NGK Spark Plugs. If you put em back in, use antiseize, as you've worn off the coating. Those are stock. The risk here is over-tightening by a pneumatic air wrench or manual wrench. Changing spark plugs takes about an hour (for a four-cylinder engine) and will save you at least a hundred bucks in labor. I do like the freezing the plug option to shrink before the final reef is applied - and that is the day after you perform procedures to get some penetrant in there. Due to the dirt, the spark plug will not work properly and will make sputtering noises due to mis-firing. - Put New Spark Plugs in. The general rule for changing out an oil filter is after you hand tighten it, take the oil wrench and give it a quarter turn to tighten it. I have tightened my plugs up to what I feel is pretty tight. If so, allow the eninge to sit for a few minutes so that the gasoline can evaporate, then re-install the spark plugs and try starting again but use less choke this time. Most spark plugs in cars from before 1996 should be replaced every 25,000-30,000 miles. Was driving to the office this morning, with about a mile to go the car starts making an extremely pronounced CHUGGA CHUGGA CHUGGA noise. This way I can only tighten it so much. We are not NGK Spark Plugs USA. Under tightening will prevent the spark plug from being properly seated on the cylinder head, resulting in insufficient contact with the head to transfer heat. Or you could under-tighten them, causing the spark plugs to work themselves out (while you're driving down the road). Tools needed: 10mm socket or wrench 5/8 spark plug socket (it has a rubber lining in it to 'grab' your plug and hold it so you can pull it out). 4 mm, engine output and acceleration response are greatly improved. This is especially inportant when installing spark plugs into aluminum cyclinder. Wire the spark plugs per instructions and reset your spark plug gaps to. No,we ain't got no stink'en crush washers. Still, plugs fail over time and there's not much you can do about it. A torque wrench is the tool necessary for precision assembly of anything that uses threaded fasteners. If you can locate solenoid (by battery) check if there are any loose connections, if so tighten them. If you had a misfire issue prior to trying to regap your spark plugs, that could also be your issue. Technicians will often tighten the gas. if you wiggled or in some way manipulated the other plug wires (perhaps to push them out of the way as you worked to replace the 3 new ones), and if the old plug wires are old, you may have added micro-fractures to them which would make the current/voltage to the plugs more variable. I had one plug fouling on the first motor I ever built. Over time, spark plugs in 2-stroke engines will often start to have some fuel, oil, or carbon build up and many people simply replace the plugs with new ones. The plating on the threads forgoes any need for anti-seize. A spark plug that is not properly torqued can cause a tick. If your plugs have lead fouling, you should consider leaning more aggressively, especially on the ground. Special care should be used when installing spark plugs in the cylinder head spark plug wells. SPARK PLUGS: A quick survey of a group of Jaguar experts clearly indicates that NGK is the plug to use. You should use anti-sieze compound on the threads. 6's generally stop most detonation. The book was written before Irridium plugs were used. Quote INSTALLATION 2. So, the moral of the story is - check the torque on your spark plugs regularly. That being said, I always put an in-lb torque wrench on it and torque to whatever the spec is. Indexing spark plugs – the process of carefully positioning the plug electrode in the cylinder head before tightening it in order place the spark as close as possible to the fuel source – is not a new concept. Step 5- If it seems in working order, replace the plug, taking care not to over-tighten (15 ft. Make sure the engine is warm (hand touch after cooling down). This to could possibly damage the threads in the spark plug holes. The gas-air mixtures are more difficult to ignite, as more ignition voltage is required and the risk of failure of the ignition coils increases. It is very common in most chainsaws for the spark plug to corrode over time from wear and tear. The expansion of the metals from the heat could cause a false torque reading on the plugs when you tighten them. Plugs with a conical seat usually get another 1/16 turn or 1/4 turn only. Remove the dirt at the gasket seal of the cylinder head. Be sure not to over tighten the bolts on the coils - you will damage the coils if you over torque them. Spark Plug FAQ What type of spark plugs should I run in my car? Refer to your owners manual for recommendations. Champion 2612 is a graphite anti-seize specifically for spark plugs, and Loctite recommends using graphite-50 anti-seize for spark plugs. Pre-ignition can, and usually does, eventually lead to knocking. They need proper care if you want your vehicle’s engine to perform at its best. The TSP or whatever it was that added a year to parts of the powertrain warranty and talked about misfired on the L15B7 powered 2016-2018 cars could also be injector related. TIGHTEN SPARK PLUGS Step 15 - Next, reposition the ignition coils for re-installation. So when the book says xyz lbs of torque, that's usually dry. But there's a way to get around that if you don't have one. No,we ain't got no stink'en crush washers. Along with copper slip on wheel bolts - just causes over tightening. Thanks to. Always dial the wrench back to zero (never below zero) when you're done with it. This to could possibly damage the threads in the spark plug holes. Possible cause: You’ve run out of fuel, or worse, the spark plugs won’t. I had one plug fouling on the first motor I ever built. That means checking that your engine is running smoothly and replacing any faulty or temperamental electrical parts, including spark plugs. With an outboard motor, I think 100 hours is a reasonable interval to check the plugs. - (6) spark plugs (there are 2 per cylinder) - rag Below is the part number for the passenger-side gasket. Spark plug threads are cold rolled to prevent thermal cycle fatigue. BE VERY CAREFUL when starting the plug and make SURE it does not cross-thread. This is possible if you have only lost one plug, inspect the remains of the old plug and check to see if the ground electrode is in normal condition. Because of its extremely narrow diameter of just 0. Inspect the end that the porcelain normally protrudes from and you will probably find that the rolled edge that holds the porcelain in is not torn away. im basically ready togo. The front cylinder does have an insert installed on it, the insert seems to be in place pretty good. aluminum head so they don't tighten the spark plugs enough. The nut is there to help you get that sucker off. Racers and performance enthusiasts have been employing the practice for years in hopes of picking up 1-2% better power. Never over tighten the plugs -- a snug-and-a-tug should do it. Step 14 - Once the spark plug have been installed by hand, use a ratchet to tighten to manufacturers specifications (snug, do not over tighten). Spark Plug Gap setting is important for proper engine operation. If that happens it's time for a new head. Over tightening can cause damage to the threads in the cylinder head and the threads of the spark plug, stress the spark plugs internal seal, or fracture the spark plugs insulator. If you are very unlucky, so is the coil. Tighten them hard. I would imagine, if it is too far, the spark will be weak and the gas will not be combusted fully. I didnt want to just pull at it so thought best to ask first. I've found plenty of uses where my cordless drill and a socket or hex adapter works wonders (like with Ikea furniture). Gap new as well as old spark plugs, even if the package says that the new plugs are "pre-gapped. Just tighten until you feel them seat, make sure they're snug, and quit. Looks like the last time I tightened it, it started to take some of the surrounding metal from the shaft with it. With the old spark plug, tighten it 1/8 turn after the spark plug seats. Also, be sure and use some Dielectric grease inside the boot before putting the coil back on. However, if installed in a 6-cylinder engine, all 6 plugs would require re-gapping. NGK Spark Plugs is one of the world’s leading automotive suppliers. Tools needed: 10mm socket or wrench 5/8 spark plug socket (it has a rubber lining in it to 'grab' your plug and hold it so you can pull it out). The domain chacha. Having said all that, when I changed the plugs on my Prius (at 100K miles), they came out as if they had been installed the day before. You can save yourself a lot of time and money by simply replacing your spark plugs. Special care should be used when installing spark plugs in the cylinder head spark plug wells. Should I tighten the spark plugs to the same torque specifications as regular plugs? The book says 158 inch pounds. RAY: Sometimes the spark-plug hole gets stripped, and then your mechanic has to rethread it or install an insert before you can screw the plug back in. I think you're over thinking things here. I would have changed them at 12 years, just so that they don't get totally frozen in the cylinder head. Place the new plug in the spark plug socket and slowly lower in the hole. I usually torque them down, drive, then after the engine cools - double check the torque on the plugs. Why is it that spark plugs are always slightly loose when you undo them? The car is a 944, I've owned it for more than 10 years and serviced it myself in that time. Special care should be taken when installing spark plugs into the cylinder head spark plug wells. There are some cautions you need to heed when using anti seize on spark plugs. Be sure to put antiseize not only on the threads, but on the bottom of the spark plug itself so the next set of plugs will go out more easily. One had a little milky residue {just water residue). Spark Plug torque specs, though I can't say officially I think like 13 ft lbs, about 160 in lbs and the coil bolt is like 7 ft lbs, about 85 inch lbs. To set the spark plug gap correctly, you need to use a spark plug gap tool. If you’re in the market for a new or used spark plug, check out our spark plug buying guide today to determine the best product for your engine. The book was written before Irridium plugs were used. First it is recommended that you loosen the flywheel, then remove the spark plugs. The head of the plug is gonna be in the cylinder just make sure it not over tightened. Then,tighten the screws,and remove the cardboard. This is for a number of reasons, over tightening can cause; 1) Damage to the threads in the cylinder head (especially aluminum heads). Here are some other common problems to check: If you’re still having problems with your lawn mower not running smoothly after trying these. Over-torquing a spark plug is also a "don't" because the insulator can be cracked. If you have trouble holding onto the plug, you can buy a spark plug starter and fit it over the plug. Their marketing has changed a lot over the years from blatant lies into implied lies. I had one plug fouling on the first motor I ever built. Fouled Spark Plugs. The OEM Beru Plugs can be fixed, and if you really like them (i. It is very common in most chainsaws for the spark plug to corrode over time from wear and tear. Spark Plug makers say no anti-seize. The TSP or whatever it was that added a year to parts of the powertrain warranty and talked about misfired on the L15B7 powered 2016-2018 cars could also be injector related. Standard or normal plugs have a flat center electrode that looks a bit like a black button while iridium plugs have a small and pointy one instead. They need proper care if you want your vehicle's engine to perform at its best. Just dont man handle them and over tighten. Remove the dirt at the gasket seal of the cylinder head. 4L is torque critical. They weren't really "invented", it was more or less obvious once the spark plug was developed that there needed to be some way to. Always tighten spark plugs to the specified torque. I'd be a little leary tightening the plugs 2/3's of a turn. Just snug it up, even the recomended torgue settings scare me. The domain chacha. " To avoid problems, work on only one plug at a time, in cylinder sequence order. You measure the gap by taking out both spark plugs and poking some solder into the squish gap, through the spark plug hole and right to the cylinder wall. Now over torqueing them to put them in, thats another story. Tis the season for tune-ups, my friends! Spark plugs are a popular item to change, and it is important to know what a good spark plug vs. If your plugs have a compression seal/gasket ring where they bottom out at the top end of the threads then the “feel “ is tight enough when there is no more give with light tightening of the wrench and then 1/8th of a turn. Over tightening can cause distortion resulting in a change in the spark plug gap. This is pressure that should be pressing the piston down,. You still might break one or two but that happens. Something that could cause that is a worn out thread on the block or a stretched thread caused by over torquing the plug. Do not over-tighten the spark plugs. Re: OK to mix spark plug types?. You do not need to put a he-man torque down on it. I use anti-seize on the threads. I had to rescue 8 members of my family after my 2003 expedition with a 5. Page 2 of 3: How to do a Blown Head Gasket Test (GM 3. What would happen if someone were to only get them to around 10 ft. Coolant shooting out from an open radiator when cranking the engine. Refer to our How to Read a Spark Plug guide to see what a worn spark plug may look like. re: spark plug recommendation for scj-a aluminum heads 78 F150 on March 2nd 2018, 9:51 pm So I got the heads off the truck today as I need to have steel inserts put in the spark plug holes because one of the holes is starting to strip out. Once you’ve put in the labor to begin checking spark plugs, however, you may as well change them and establish a new baseline for the future. Simply not enough accuracy at very low torque values for things like plugs. Also, you may have just changed the battery and have no reason to believe it is bad. Those are stock. 00 fair price for changing spark plugs on a 2001 ford scape V-6? they say they need to remove intake manifold in order to that? has my sister been overcharged? if you are a mechanic or know about this things please advice! you help will be greatly appreciated! thanks. But the girl from Dublin is not just a pretty face. Install the new plug and torgue to 20 ft lb. ) 7) Don't assume the part number on the part you're changing is the right part number, always verify with the IPC when replacing a part. If you’re in the market for a new or used spark plug, check out our spark plug buying guide today to determine the best product for your engine. I'm assuming the loose spark plugs caused a problem with proper compression and fuel burning. Set the new timing belt next to the old belt and copy over the marks you made previously. if you over compress the ealing ring, it can just streatch the treads out when it heats up. Well, as tight as I'm comfortable with. Why is it that spark plugs are always slightly loose when you undo them? The car is a 944, I've owned it for more than 10 years and serviced it myself in that time. The spark plug is the device that causes the fuel/air mixture in the cylinder to burn. Place the ring terminal over the threaded shaft on top of the spark plug and screw the nipple cap back on the spark plug to hold the ring terminal in place [photo 16]. If a plug wasn't tightened properly when it was replaced, it could have just loosened up over time until it finally popped out. If not, you're supposed to tighten to 30 foot pounds, and if the line ends up in the unshaded half, you're good. 4L CAUTION Spark plug tightening on the 2. For messing with the coil pack (which you have to if you are replacing the spark plug wires), removal of the windshield wiper cowl is a big. When you're Buying Geranium Pure Essential Oil Anti Stress Moisturize and Tightening Improve Oily Skin Ruddy Skin Body Care Massage Oil, make sure that you are only Buying on safe websites. Something like that you can certainly benefit from a motorized driver. Refer to our How to Read a Spark Plug guide to see what a worn spark plug may look like. [From Denso] If threads are lubricated, the torque value should be reduced by approximately 1/2 to avoid over-tightening. Spark plugs are good to give you clues as to what might be wrong with a saw like it is running to rich or lean. Re: Honda Accord - New Spark Plugs caused Check engine light on Hey i don't know if this was fixed or not, but i was going over my Haynes repair manual, the trouble code you had P1457 - the book states. First we need to use the proper plug so make sure you have the proper numbered plug. Using the correct torque also prevents you from over-tightening the plug and damaging the spark plugs or the cylinder head threads. Under tightening will prevent the spark plug from being properly seated on the cylinder head, resulting in insufficient contact with the head to transfer heat. As a tip, doing the spark plugs while the engine is warm probably won't do any harm, but it's obviously way better to do it while it's stone cold. You over-tighten those plugs 2-3 times in an aluminum head and the next time you go to take out the plug you'll end up removing some thread. My spark plugs were OEM at only 79,000. A: Yes, you can clean spark plugs. Does not make sense to *re-torque*, if you take into account that spark plugs should always be installed with *NEW* washers, when removed and then re-installed for inspection. " Measure the spark plug gap with a spark plug gauge and compare that measurement to the measurement called for in the lawn mower's owner's manual. How to check, clean and replace your aircooled Volkswagen's spark plugs Why you might need to do this. Now rounding off the spark plug or stripping out the threads is a real problem. If you get a new head, make sure you use oem spark plugs and tighten to specs with a torque wrench. Why does the Engine of my Car Shake?. Behold the humble aviation spark plug. I figure it's a good time to check the plugs for oil fouling or any other problems. If you decide to go with the cheaper two dollar plugs make sure you get some dielectric tune up grease. Clicker torque wrenches aren't as accurate (in general) but are much more precise. If the spark plug and ignition coil boot are swimming in a lot of oil, you may need to replace the ignition coil too. If the car has plenty of coolant, the heater works well, the coolant looks clean, there are no noises coming from the water pump or pulley, and revving the engine brings down the coolant temperature, there’s a decent chance there’s air trapped in the radiator hoses. Spark plugs are relatively inexpensive and come in two common sizes: 5/8 and 13/16. But there's a way to get around that if you don't have one. The best advice is to look up the plug torque specifications for the application, and to use a torque wrench to tighten the plugs. Ideally anything that has a torque value should be torqued to that value. We could have gone with the factory-type coil, but the reality is that the Accel coil packs are. DO NOT hold the wire while doing this as it can shock you. also, make sure you do not over-tighten the plugs when you put them in. Add a gallon or so of diesel fuel and a new filter, and turn it over with the starter for a minute or so. ops! The average cost to remove and replace the cylinder head on a 4 -stroke Jetski runs over $400 + all those expensive gaskets that must be replaced. You do not want to over tighten these as you can damage the plug or the cylinder head in. A set of new NGK platinum spark plugs and all new Accel Supercoils were ordered from our local NAPA parts store. Spark Plugs and Wires Types of Spark Plugs. Tighten the spark plug finger-tight until the gasket reaches the cylinder head, then tighten about ½ - ⅔ turn more with a spark plug wrench. The part number is labeled right on it. You should double check that the gap is correctly set; check your owner’s manual to find the distance for the spark plug gap and use a gap gauge or feeler gauge to check the distance. Having sold over 1 million spark plugs, we know exactly what you need for your car. Direct Ignition Coils and Spark Plugs Inspection and Installation. If you have an on/off switch- make sure it is on. 97 -03 Ford blown out spark plugs I hesitate to introduce auto info to the forum, but vehicles are integral to our activites. Spark Plugs - Highly insulated electrode that forces electricity to arc across a gap in order to ignite a fuel air mixture in a combustion chamber of an engine. In this step, I want to remind you that never over tighten the. If your tightening a bolt on cast iron or aluminum heads or oil pans and tighten accordingly. I'm buying a torque wrench to install all future plugs. " To avoid problems, work on only one plug at a time, in cylinder sequence order. Inspect the end that the porcelain normally protrudes from and you will probably find that the rolled edge that holds the porcelain in is not torn away. Ok guys, I see the same questions asked over and over about spark plug selection and fitment, so I hope this information below helps. Step 7 – Install the New Spark Plug Before you actually fit your new spark plug, compare it with the one you just took out. I don't own a torque wrench so was trying to not over tighten but also didn't want to under tighten as I've heard the Bosch plugs have a tendency to loosen?. To take on this job you should have some automotive repair experience because this job entails dealing with automotive parts that can be dangerous ie: compressed springs and jacking the car. Indexing spark plugs – the process of carefully positioning the plug electrode in the cylinder head before tightening it in order place the spark as close as possible to the fuel source – is not a new concept. Browse your favorite brands affordable prices free shipping on many items. No reason to replace it. Possible cause: You’ve run out of fuel, or worse, the spark plugs won’t. This is for 2004 Mazda Tribute & Ford Escape for the front 3 Cylinders numbers 4, 5 & 6. While the bolt won't just pull straight out of the hole, it will be likely to work its way out, or the nut to work loose. Install the wires being sure you connect the spark plugs to the correct coils. No,we ain't got no stink'en crush washers. Well I was told to tighten the prop nut to 50 lbs which i thought was a lot but i dont have a torque wrench so I just tightened it down pretty good. This comes down to using the proper tool: a spark plug socket. The book was written before Irridium plugs were used. NGK LaserLine spark plugs come with a lifetime of 60,000 km, clearly outperforming “normal” spark plugs. Use 25% less torque when tightening them or you risk stretching the threads in the head. You do not need to put a he-man torque down on it. In a badly worn out motor, they can last for days. If you have a torque gauge, torque the plugs to 18 ft lbs. 5 reasons why your 'check engine' light might be on You can replace spark plugs yourself for as little as $10 or pay $300 for a technician to do it. You want Thermal Paste. Don't over tighten the plugs. The spark is responsible for initiating combustion within the cylinder where the air-fuel mixture is ignited. Don't over-tighten, just make it good and snug, that's all. A spark plug can not split a single electric spike into multiple sparks, can't happen. The truck didn't really feel like it was losing any power, but it just wasn't "right", if you know what I mean. RAY: Sometimes the spark-plug hole gets stripped, and then your mechanic has to rethread it or install an insert before you can screw the plug back in. I do like the freezing the plug option to shrink before the final reef is applied - and that is the day after you perform procedures to get some penetrant in there. Especially in an aluminum head. The main reason for replacement of spark plugs is not erosion of the gap, but burning and subsequent corrosion of the plug body thread and the 'clump' of carbon formed at the tip of the thread. I use anti-seize on the threads. If you use too much anti-seize it will squeeze out of the threads when you tighten it and can get on both the electrodes and the spark plug seat! I recommend a graphite based anti-seize. Resistor (The "R" printed on the insulator) Many spark plugs have a special conductive glass seal between the center electrode and the terminal stud. FREQUENTLY ASKED QUESTIONS. Most heads are made of aluminum and the threads can strip easily. Well very simply, you would need a more regular maintenance schedule, unlike the Platinum and Iridium spark plugs, which can be fit and forgotten about for 20,000 miles + if you use or consider using Silver or copper spark plugs, remember these will require more frequent service schedule replacements than the Platinum or Iridium, if you are. This can happen only a couple of degrees before the spark plug fires, so it is possible to have pre-ignition and not know it. I've also taken out and put back the same spark plugs many times with no noticeable difference. Primary and Secondary System The ignition switch allows the driver to turn the system on and off. Be very careful not to cross thread the plug into the spark plug hole or thread in the spark plugs too far. Tip from Lee: Over the years in the mechanical business I have seen defective spark plugs. The experienced tuner can use spark plugs to find the root cause of problems, determine air-fuel ratios and increase vehicle performance. All internal combustion engines have a spark plug, or in the case of diesel engines, a glow plug, to initiate combustion in the engine. Spark Plug FAQ What type of spark plugs should I run in my car? Refer to your owners manual for recommendations. if you over compress the ealing ring, it can just streatch the treads out when it heats up. DO NOT hold the wire while doing this as it can shock you. That, and burning yourself while doing the job is not fun. Shortest gap (.
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