How To Check Spark Plug Wires With Water

Ideally, spark plugs need replacement every 30,000 to 40,000 miles, depending on your car. Loosening the drain plug may require a socket, wrench, pliers, or screwdriver. If you listed the year, make model, and engine I could be more specific. It is critical that they are replaced in the same location they were removed. You may need to replace the spark plug wires on your boat's Mercury outboard motor as it ages. For a twin cylinder engine, label the spark plug wires so that they can be replaced in the correct order. Changing the ignition wires at that point is very little additional labor. If the soapy water mixture finds a hole or soft spot in the spark plug wire the spark will jump out of the wire and ground itself to the water. This is the spark plug wire set that fits M38A1 models with the waterproof distributor setup. Re: How to properly ground spark plug wires I either use test leads as mentioned, shove one of the alligator clips in the boot, other end to the powerhead. When this happens you can either buy a new spark plug or clean the one that's fouled. Does anyone know what the resistence should be? Will the resistence be appreciably different the longer the wire is? Should the coil wire read different than the plug wires? I did a search for Ohms resistence and one member suggested 1,000 ohms was correct. I put new plug wires on and it ran great even with the oil coating. Now if we look down into the bottom of the plug as seen in the above image where the porcelain reaches below the steel body we see black deposits indicating a rich condition at mid range to WOT. If the spark plug doesn't fire properly, then the tool won't start or will sputter while it is used. Then, pull the boot off of the spark plug and unscrew one of the wires at the end. Find the right set for your car, truck, or SUV. I am not going to get into plug reading as that will be a seperate article in itself. Only found it with a routine check of the plugs and my first hint that something might be wrong was that the plug was barely hand tight. A simple test is to start up your bike in a darkened place, and spray a mist of water around the plug wires. Tail Lamp Bulb. The specs for a ignition wire should be about, minimum - 250 ohms per inch, maximum - 1000 ohms per inch. A spark plug wire it is known for is the Denso Spark Plug Wire Set. Look in the owner's manual to find the appropriate resistance for the wires. This a pretty common problem, and fortunately for you this video is here to show you how to fix it, assuming you're decent at auto maintenance already. Keep track of which plug came out of each cylinder. Being a radio transmitter, the RF will confuse any electronic device, which includes CD ignition and ABS brakes. Holley EFI users also have great service with FireCore50 spark plug wires. I personally got around 2,000 to 3,000 for each wire when I measured (Assuming that 2. 6, 147K miles. Then apply a coat of TEMPEST. In your case the spark plug was close enough to the block to still jump the gap. 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. The condition of your spark plug will give you clues as to what is happening. Be careful not to drop any foreign matter into the wells. I normally see this problem with cheaper spark plug wire sets. Removing this cover reveals the ignition coils, wires and plugs. 9 out of 5 stars 2. This is done only every 40,000 miles or longer and you have completed most of the work just getting to the plugs. New spark plugs are a must for any good tune-up. DUI, LiveWires Performance Spark Plug Wires, Blue Fits: Jeep 4. water-tight seal, Cons / Some applications have short wires, double check when ordering that you. Ran great until last week. In short, the reading of a spark plug involves evaluating the condition and color of the tip of the spark plug. Bad spark plug wires are a common cause of misfire codes. I would check the spark plug wires. Step 3- Inspect the spark plug for very stubborn deposits, or for cracked porcelain or electrodes that have been burned away. The Accel SuperStock Spiral Core Spark Plug Wire Set with only 500 ohms/foot of resistance, more ignition energy can reach the spark plug, producing a hotter, longer lasting spark flame kernel. Step 2- Remove the spark plug using a spark plug socket. However, it’s still a good idea to test the wires that carry the voltage necessary to run your engine. Testing spark plug wires with an multimeter is a good way to verify they are in working condition. We stock Porsche Spark Plug parts for you so you can get them quickly. Remove one of the plug wires from a plug and hold it near grounded metal. OBDResource Spark Plug Engine Tester Ignition 12V in-Line Spark Tester Straight Boot Ignition Test Light for Automotive, Car, Lawnmower, Chainsaw,Motorcycle,Small & Big Internal/External Engines 2. So to check the spark we need to pull the rubber cap off the spark plug and remove the plug from the engine. If the soapy water mixture finds a hole or soft spot in the spark plug wire the spark will jump out of the wire and ground itself to the water. Check the condition of your spark plugs and spark plug wires. It would start and die with the old plugs so I put in new plugs (NGK) and it started up and ran fine. Spark Plug Wires 4 Weeks Ago Check the more recent one. Pop the wires off and unscrew the spark plug(s). On older engines with distributors, the wires run from the distributor cap towards the plugs, and come in distinct lengths to reach the closest and furthest spark plugs. Coils and Spark Plug Wires Trouble Shooting. Find the spark plug wires (thick cables running from the ignition coils to the top of the engine) where they connect to the spark plugs and follow them to the openings in the cylinder head for each. The meter will read internal wire resistance in ohms. Spark plug wires are made of a conductive core and typically silicone rubber insulation. You can not test the ignition wires this way. Our knowledgeable staff is ready to help you find the auto parts you need for your vehicle. When your spark plug wires are starting to wear down, you will usually notice some telltale signs: Check engine light - This could indicate a problem related to your spark plug wires as well as other possible issues. An ignition coil can be placed right over the spark plug (coil-on-plug) like in this illustration, or connected to the spark plugs through spark plug wires, like in this photo. Check each of the plugs as you remove them - they will indicate the general running condition of the engine. Background. How to Test a Spark Plug Wire: Video tutorial on how to test a spark plug wires. If you're having problems that you think could be related to your plug wires, the good news is they are usually pretty easy to troubleshoot. Attach the spark tester to the distributor end of the coil wire. This is also a video on How to Check Spark Plug Wires. 1 Required per Jeep. Chrysler PT Cruiser Ignition Cable (Spark plug wires) Replacement costs between $138 and $155 on average. If a wire fails to show complete continuity, it. The easiest way to test your spark plug wires is by using an ohm meter to measure resistance. In order to repair a damaged spark plug, you will need the following: pliers, newspaper, brake cleaner, a mallet, a block of wood, a screwdriver, a valve cover gasket set, Lock Tight, and a high impact socket. To do this successfully, they need to be covered in thick insulation to prevent high voltages jumping off the wire before it reaches the spark plug and a rubber boot at each end. What are the possible causes and corrections. This is the spark plug wire set that fits M38A1 models with the waterproof distributor setup. Then start the engine and watch the tester window. That’s how it is with spark plug wires — if you’re going to get plugs, you might as well get the wires. I am not going to get into plug reading as that will be a seperate article in itself. Step 2 - Replace plug wires and coil packs. Unscrew the spark plugs and set them aside. Install each new spark plug, being careful not to cross-thread and damage the spark plug and cylinder head threads. Turn the car off. Check for abnormal pitting or charred plug ends. If the misfire moved to cylinder number 1, then you have determined that the coil pack is faulty and needs. Spark Plug Wire Set by Karlyn STI®. When your spark plug wires are starting to wear down, you will usually notice some telltale signs: Check engine light - This could indicate a problem related to your spark plug wires as well as other possible issues. To determine the number of wires you need, you can count the wires already in place or you can check with the manufacturer to see how many cylinders you have. This is like palm. For a twin cylinder engine, label the spark plug wires so that they can be replaced in the correct order. When you're at the auto parts store, we recommend that you buy a premium set of wires. Spark Spark plug wires connect the spark plug to what they’re creating a spark in. Changed spark plugs, Cam and Crank sensors, Checked and reChecked Relays, Cleaned Maf, Changed Throttle Body, Rotated Coils 1 Cylinder at time a total of 4 times, Checked Volts and Ground @ Connection. The spark plug wires on my 85 K100 need replacing but the BMW plug wires are listed as nearly $50 per wire this seems a bit steep for plug wires. Compare the old wires to the new wires to find the one with the exact same length and/or match the wires' numbers if available. Even if it's working now, it will soon fail. Only a few spark plugs could be firing, take them out, and check for water. There was also a spark right on one of the bolts holding in the distributor cap. Put on a pair of insulated gloves and remove one spark plug wire from its plug. Made from. Push the long male end of the In-Line Spark Checker into the spark plug wire. The sealed resistor won’t let water in. ) A little water, dissimilar metals, and electricity (galvanic corrosion time. Check resistance and if it exceeds specifications, replace the wire set. Blow the spark plug dry with compressed air. If you are having a no-spark problem, a good place to start after ruling out shorts, grounds, switches and spark plugs, is the ignition coil, spark plug caps and wires. The water will typically conduct the current over the insulator rather than allowing it across the gap. On engines that are equipped with a distributor or a remote coil pack, spark plug wires are used to transfer the spark from the coil to the spark plug. Spark plug wires eventually require replacement, and you don't necessarily need to go OEM. Set your meter to the ohms scale and to a setting that will let you read 50,000 ohms or above. 38 Ram-Pro in-Line Spark Plug Engine Ignition Tester, 6-12 Volt Fool-Proof - Pick Up Coil/Armature Diagnostic Detector Tool - for Automotive, Car, Lawnmower, Small & Big Internal. Porsche Spark Plug Parts Online Catalog. Spark plug wire boots are usually rubber or plastic. Rinse the spark plug thoroughly. Step 4- Check the spark plug gap and adjust as necessary. 9 out of 5 stars 2. And no more trying to transform regular-guy line mechanics into check-list. Can plug wires wear on the inside,the outside still looks good no cracks or anything but I'm getting a slight hesitation sometimes when I take off. Washing with water won't hurt a TEMPEST® spark plug. I drove around it almost died on me, before you know it I'm running on 1-2 cylinders. Model T Parts Search - spark plug wires - Page 1 of 22 Sort: [Please Select A Sort Order] Item Popularity Newest Items First Item Number (0-9 A-Z) Item Number Descending (Z-A 9-0) Lowest Price First Highest Price First Description (0-9 A-Z) Description Descending (Z-A 9-0) - Per Page: 10 Items 20 Items 30 Items 40 Items 50 Items 100 Items. Whenever you are changing out your spark plugs, it’s a good idea to check on those spark plug wires to be sure they’re up to. I do agree OEM parts, gaskets, etc. For about five bucks, you can attach a replacement plug and save your old cord from the trash. 3l in 12 feet of water i finally got it running and alive again. • Check all spark plug wires for proper routing. The spark is going to go to ground somewhere. I had a plug slowly eat up the center electrode while the other 7 were fine. Bad Spark Plug Symptoms Considered as one of the most abandoned and concealed aspects of a vehicle, a spark plug plays a vital role in keeping the vehicle running. So much that I couldnt see the part of the plug that the wrench goes on. In theory, it should not shock you through the boot. Check the condition of your spark plugs and spark plug wires. I sometimes get a blinking check engine light while trying to accelerate, which now occurs only while it is raining or I am exiting the car wash. Find the spark plug wires (thick cables running from the ignition coils to the top of the engine) where they connect to the spark plugs and follow them to the openings in the cylinder head for each. Some vehicles may not use spark plug wires, if there is a coil on the plug. The insulation (rubber coating outside the wire) may break and cause arcing. What are the possible causes and corrections. If you've got oil leaking into the spark plug wells on your Honda Accord, you're not alone. Start at one plug wire location near the spark plug and spray water over the entire length of the plug wire up to the distributor cap. I put new plug wires on and it ran great even with the oil coating. Always note the locations of each spark plug. Basically, there are three spark plug wire types, but more on that later. The spark plug wires on my 85 K100 need replacing but the BMW plug wires are listed as nearly $50 per wire this seems a bit steep for plug wires. The spark plug boot puller is designed to free the spark plug wire boot from the spark plug that it's attached too. Whenever you are changing out your spark plugs, it’s a good idea to check on those spark plug wires to be sure they’re up to. cleaning residue. Torqued the plugs to spec, Put my coils back in exact order, made sure 2 times the wires were properly connected and i even torqued the hold down bolts on the coils and made sure no dust or dirt got into the spark plug wholes the entire time. Browse your favorite brands affordable prices free shipping on many items. Crack the engine and check for a good spark at the spark tester. That is why it is so important to routinely check your Mercruiser spark plugs , wires, and wiring harness for signs that its service life is over. Examine the spark plugs. Double check installation of spark plug wires. Check your spark plug wires regularly! Like everything else on your car, spark plug wires need to be checked and require periodic changing. As with no air, no fire or combustion can take place. Changing out the lower unit lube and getting it started and changing out spark plugs. Watch for signs of the engine cutting out or missing. Wire-brush the engine end threads to remove carbon and grime. 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. Dodge Durango Seal kit available to prevent water entering the spark plug wells - 19 reports. First of all, check the image in this link to diagnose the state of the spark plug. 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. Step 1: Remove the spark plug wire. Too much torque can damage the spark plug. • Check that all spark plug wires are securely attached to the spark plugs and to the distributor cap or ignition coil(s). I just used the shop-vac and the air compressor, simultaneously, to blast that strange dust (precipitate?) out of the spark plug recess. In this article we will know how to clean a spark plug. Check the condition of your spark plugs and spark plug wires. Learn about this problem, why it occurs, and how to fix it. The condition of your spark plug will give you clues as to what is happening. Wire-brush the engine end threads to remove carbon and grime. 0 Liter 6 Cylinder. The conducting core is bent over at the wire end and the boot metal is crimped over the core/insulation of the wire. So I changed spark plugs and spark plug wires, checked coil pack everything looks good and I still have the same trouble codes. Spray some water on the spark plug wires and the ignition core wire. Testing a spark plug wire’s ohm resistance with a multimeter is a good way to verify they are in working condition, and if the wires are capable of delivering the required voltage to the spark plug. Signs that you may need spark plugs and wires include a Check Engine light, engine misfires, erratic idling, and increased emissions. Loss of spark includes anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. Also, due to the number of different coil variations available, it makes it difficult for specific specifications. Performance Tool Spark Plug Wire Tester, Model# W80530 | Northern Tool + Equipment. CARiD offers different kinds of ignition wires for you to choose from. If they are not, there may be a blockage in the fuel system. If you need a single spark plug wire, O'Reilly Auto Parts carries single lead wires for your repair. Replacing plug wires. 1997 - 2003 F150 - water in spark plug recess - 1997 f-150, 4. BMW 2002 Spark Plug Wires Auto Parts. The spark tester connects between the spark plug and spark plug wire to troubleshoot dirty spark plug connections, defective points and bad cables or connections. A spark plug tester is a handy tool that allows you to check if your spark plug is working properly. If your car is stalling, idling poorly, hesitating, getting bad fuel economy, misfiring, or you have a check engine light, you should check. I sometimes get a blinking check engine light while trying to accelerate, which now occurs only while it is raining or I am exiting the car wash. Check the secondary resistance between the two spark plug caps if the ignition coil has two spark plug wires. It is parked under a carport, protected from the sun. cleaning residue. They ignite the mixture of fuel and air in the combustion chamber from the electrical current it gets through the ignition coil. If the soapy water mixture finds a hole or soft spot in the spark plug wire the spark will jump out of the wire and ground itself to the water. Unscrew the spark plugs and set them aside. The distributor cap has one post for each cylinder, and in points ignition systems there is a central post for the current from the ignition coil coming into the. This is the spark plug wire set that fits M38A1 models with the waterproof distributor setup. Place the spark plug on a metal surface on the engine, or ground the spark plug tester to the engine. Discussion about the "right" way to check spark plug resistance can go on until the cows come home. Do this one at a time only and be sure to place the them back on the spark plug it was removed from; Visually check for any burning or darkening signs. When you expertise a sluggish engine, there is a good probability that you simply may have a bad spark plug. 5mm and copper cores put a terrible amount of load on the coil from too much inductive kick, and will lead to a spark that is too early and too cold. A spark plug wire it is known for is the Denso Spark Plug Wire Set. Car misfires often caused by spark plugs, ignition boot. When changing or cleaning/regapping your spark plugs, remember to check the plug connection caps and wires for cracks or other evidence of wear or damage that can lead to current loss or poor. Rinse the spark plug thoroughly. There is no such thing called a spark plug cleaning liquid as that's not the way to clean the plug. This is like palm. New spark plugs and wires can also improve your fuel economy. Have a helper crank the engine. You don't necessarily have to remove the plug caps to check the secondary resistance. Adjustable wrench2. However, it's a good idea to inspect them periodically because a problematic spark plug wire can lead to a range of other problems if left alone. If you listed the year, make model, and engine I could be more specific. It filled the #4 spark plug well with water and caused a misfire. Spark Tester. 65MM FOR HARLEY 99-08 TOURING FLT FLHT+ are happy with the quality of this product. piston stop tool (Or a dial indicator), connect all spark plug wires to a spark gap tester, connect a remote starter to the engine and a timing light to # 1 spark plug wire. Doing basic tune ups such as new dist rotor and cap, duralast gold premium wires and checking spark plug condition and gaps. com is the premier place to buy Porsche Spark. 5 not running). Remove the ignition wires by firmly grabbing the boot that seals the spark plug well. Check your owner's manual or the spark plug box. Beginning in the '90s, most manufacturers did away with a mechanical distributor and plug wires and instead managed timing and spark with the engine computer and an individual coil-on-plug (COP) or coil pack. A bad spark plug wire that is arcing to a. They have to go back the same way. I don't recall ever seeing a 4. Wire-brush the engine end threads to remove carbon and grime. And if you’re on the lookout for the best set, we have just the thing for you. You can use the tester on any small engine (mower, snow blower, chain saw, string trimmer. about 100k miles. If your vehicle is equipped with individual coil packs instead of spark plug wires, start by removing the cylinder 4 coil and swapping it with the cylinder number 1 coil. Check A/C compressor belt for. Their primary purpose is to deliver electrical current to each of the spark plugs from a distributor, ignition coil or magneto. 1 Required per Jeep. However, CNP (Coil Near Plug) is a similar system in that there is a coil for each cylinder, but the coils and plugs are connected with short spark plug wires. 3/8 in Driv. Fuerdi Ignition Spark Plug Tester Wire in-line Diagnostic Tools Automotive Auto Detector Coil Ignition System Test for Automotive, Car, Lawnmower, Small & Big Internal/External Engines 4. Add-on: Nickel-chrome Alloy Sheathing To Help Prevent Corrosion On Center Electrode. Loosening the drain plug may require a socket, wrench, pliers, or screwdriver. Worn spark plug wires and boots can start to leak voltage to nearby engine parts, causing arcing and creating performance problems. These high performance ignition cables are the ultimate upgrade for your engine ignition system. For most vehicles, replacing spark plugs is a simple matter , though you might need to be a contortionist to get to some of them, perhaps placed behind shields or under intake manifolds and other equipment. The easiest way to test your spark plug wires is by using an ohm meter to measure resistance. You should feel each connector snap into place onto the end of the spark plug. The spark tester connects between the spark plug and spark plug wire to troubleshoot dirty spark plug connections, defective points and bad cables or connections. Use the 10K range on your multi-meter. This test step applies only if you got a No spark result in TEST 1 on: 1) only one spark plug wire or 2) two different spark plug wires that DO NOT feed two 'Paired Cylinders'. "High tension lead" or "cable" is also used for any electrical cable carrying a high voltage in any context. 7 k per 2 feet of length. Test the spark plug ignition by disconnecting the spark plug wire from the spark plug. Start the engine. Outboard Ignition Coils and Spark Plug Wires (HT Leads) This video looks at outboard ignition coils and HT leads or spark plug wires. To perform a wire resistance test, connect an ohmmeter across each end of the wire. ACDelco Professional Spark Plug Wire Sets are designed to match the fit, form, and function found on new vehicles. Then, use a spark plug socket to remove the spark plug, and carefully attach the spark plug wire back in the spark plug, but don't put the spark plug back in its socket. MerCruiser Spark Plugs & Wires Over time, salt spray, humidity, and UV rays take their toll on many boat systems, even those that are not readily visible. …distributor (distributor is mounted DIRECTLY under the fan blade/water pump)* Must use with graphite style spark plug wires # ABC4309, do not use copper or stainless spark plug wires* Fits Ford distributor # 9N12100* Check that your distributor number is listed in the application information. Your probably have a spark plug tube leak, and this video will show you how to find and fix just such a problem. 99, i wasw curious if anyone has ever used them on thier taco, or was ever interested in doing so too!. I pulled that plug and it looked orange. In my opinion, its kind of a mistake to not change the spark plug wires at the same time as the spark plugs. Conventional copper spark plugs would normally need to be replaced after 30k miles or so. So to check the spark we need to pull the rubber cap off the spark plug and remove the plug from the engine. When a spark plug wire is aged or damaged the high current of electricity flowing through it can, and will, escape the protective rubber coating and connect with any metal object near it. Sometimes the spark plug can be cleaned and adjusted by resetting the spark gap at the end of the plug. Beginning in the '90s, most manufacturers did away with a mechanical distributor and plug wires and instead managed timing and spark with the engine computer and an individual coil-on-plug (COP) or coil pack. Crank the car. How to Replace Spark Plugs and Wires: In this Instruct-able, I will go through the process of changing the spark plugs and spark plug wires using a 1996 Mustang GT as an example. MerCruiser Spark Plugs & Wires. Test the spark plug ignition by disconnecting the spark plug wire from the spark plug. For this reason, it is essential to check the size of the spark plug gap during spark plug replacement and when trying to diagnose an ignition misfire. Dodge Durango Seal kit available to prevent water entering the spark plug wells - 19 reports. Installing Nology "Hot Wires" Spark Plug Wire Set on MkII. If a spark plug fails to ignite, or misfire, then your vehicle will usually malfunction by not even starting up at all. Leave the wire if you want. Technician B says that a standard spark plug removed from the cylinder used to check for spark only requires 3,000 volts or less to create a spark so the use of a spark tester is required otherwise you may overlook a bad coil. DENSO is a world leader in spark plug ignition wire sets. Changing out the lower unit lube and getting it started and changing out spark plugs. Wire-brush the engine end threads to remove carbon and grime. To know for sure if a fouled or damaged spark plug is the cause of your boat’s engine issues, you’ll need to examine the spark plugs. Check all your spark plugs, but work on only one plug at a time, and don't remove a plug unless the one you just dealt with — or its replacement — is safely back in the engine. But I can’t figure out how get the wires out of the magneto cap. Some vehicles may not use spark plug wires, if there is a coil on the plug. How to check spark plugs You can tell an awful lot about how your air-cooled engine is running from the condition of your spark plugs, so it's worth checking them every so often. Learn a simple and easy method of testing spark plug wires in order to eliminate them as the cause of poor engine performance. ok i must have the worst luck there is , iam not sure what happen or what went wrong. Have posted many times and always got the right answer. technician B says that if the exhaust has little oxygen, the voltage of the oxygen sensor will be close to 1 volt (1000 mV) and close to zero if there is high oxygen content in the exhaust. With the engine cold locate the plugs. You will just need a Spark Plug Wrench and a Spark Plug Gap Gauge. "How to Test the Ignition Module for. Carefully insert the spark plug connectors, observing the firing order of the engine (Pelican Parts plug wires have the plug number stamped on each wire, to make installation easier). You're welcome. Label your spark plug wires. How to Check a Car's Spark Plug Wires By eHow Cars Editor Part of car overhaul and car maintenance is checking your car's spark plug wires. The 3rd is the spark plug wires I run. Testing the Spark Plug Caps. Find the spark plug wires (thick cables running from the ignition coils to the top of the engine) where they connect to the spark plugs and follow them to the openings in the cylinder head for each. 1 Clean your spark plug. Does anyone know what the resistence should be? Will the resistence be appreciably different the longer the wire is? Should the coil wire read different than the plug wires? I did a search for Ohms resistence and one member suggested 1,000 ohms was correct. Porsche Spark Plug Parts Online Catalog. The spark plug boot puller is designed to free the spark plug wire boot from the spark plug that it's attached too. Changing your own spark plugs is also easier than it sounds. There are not a lot of things that you can check to confirm that the coil is operating. Your probably have a spark plug tube leak, and this video will show you how to find and fix just such a problem. I would look top side for a coolant leak that is spraying coolant into the top of the spark plug well. How to check spark plugs You can tell an awful lot about how your air-cooled engine is running from the condition of your spark plugs, so it's worth checking them every so often. How to Check a Car's Spark Plug Wires By eHow Cars Editor Part of car overhaul and car maintenance is checking your car's spark plug wires. The most common way of checking your ignition coil is to use an in-line spark tester. 3l in 12 feet of water i finally got it running and alive again. Get the best deals on Ignition Wires for Cadillac Escalade when you shop the largest online selection at eBay. Worn and old spark plug wires are common causes of random misfires. With the cap removed, on the inside of the cap, it looks like there are screw head slots next to the spring loaded carbon terminals in the cap. Starting at the end of the row, pull the wire off the end of the spark plug by grasping it as close to the engine as possible then pulling. While traditional boat plugs’ constantly thriving deposits spoil the spark discharge, no soot will be deposited on 360-degree outboard / inboard sparkplugs’ electrodes, because throughout the life of the spark plug the gap size remains as it was originally, apart from normal wear and tear. Beru Spark Plug Cap Rebuild - Rebuild #2. Remove the spark plug cover of the outboard motor. If you're having a problem with missing or inconsistent running, plug wires are often the problem. It depends on the severity of the of the problem, if only one lead it could manifest itself only underload ie would tickover quite evenly then breakdown say over 4000 revs one easy way to check is to attach the crocodile pick clamp from a engine t. After having her check some stuff it eventually came out that one spark plug wire felt different from the others when removed and installed. Drain and fill engine cooling system (or every 5 years, whichever comes first). Re: How to set WOT Timing without a test wheel? I have the standard single spark plug tester. How to Replace Spark Plugs and Wires: In this Instruct-able, I will go through the process of changing the spark plugs and spark plug wires using a 1996 Mustang GT as an example. It can also save you time by allowing you to check if the problem is actually in your ignition. Testing spark plug wires with an multimeter is a good way to verify they are in working condition. You could probably look at the wires and see some carbon tracking. At someones suggestion we changed the spark plugs to another brand of plugs and WOW the problem was fixed!!! It just happended that the other plug was the correct plug for the new application ( we created) and ran very well from then on. Sometimes the spark plug can be cleaned and adjusted by resetting the spark gap at the end of the plug. If not, you have a problem in the ignition system: Either a bad spark plug wires, distributor, ignition coil or ignition module. When we were buying new plugs for the car, I asked about plug wires and was very confused when they told me the car doesn't have any. hello everyone. How to Check a Car's Spark Plug Wires By eHow Cars Editor Part of car overhaul and car maintenance is checking your car's spark plug wires. Step 3- Inspect the spark plug for very stubborn deposits, or for cracked porcelain or electrodes that have been burned away. It should make NO sparks.