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Accessories Horns, Pegs, Guards, MP3, Sat. Radio, GPS, etc. |
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Wire Splicing Methods...
What do we do with wires class? CONNECT THEM, that’s right. There are a few ways of connecting wires. Certain ways are better depending on the use of that wire. This thread will discuss some of those methods, with emphasis on the two most correct ways, soldering and crimping.
"Strip back the insulation and twist them up" DO NOT DO THIS This is a very good way to make sparks and ruin the CD player you just spent all your rent money on. Twisting up wires is a poor electrical connection with excessive resistance and can short to any of the 11 or so other deck wires or to the chassis. The connection is also mechanically poor due to the fact that it may be pulled or vibrate loose at any second. "Strip back the insulation, twist, and electrical tape" DO NOT DO THIS Although this adds a little insulation to the above first option, it often falls off the second you put the deck in. This then suffers from all the negatives of the 1st connection. "Wire Nuts" Questionable for Automotive Practice Wire nuts are acceptable for home applications where the wire is not moving in a wall. But in cars they tend to vibrate off the wire. These also have a higher added resistance than other methods. "Butt Soldering" CAUTION: DO NOT USE ACID CORE SOLDER. Silver solder makes a very good connection. Some shops swear by this method while others curse it for taking up too much install time. This connection is physically and electrically sound while being cheap as well. This connection also needs some form of insulation such as electrical tape or heat shrink. Over all, soldering is the best connection method. Strip back about an inch of insulation off of all of the wires to be butt-soldered. Holding the wires at a 90 degree angle to each other in the middle of the stripped end, start twisting the wires around each other along the wires length. This type of connection is called a "Western Union" splice. Prime the tip of the soldering iron with a little solder. This is called "tinning", and it allows the heat from the soldering iron to get out, and protect the tip from corrosion and burning up. Hold the iron on the wire until a little solder flows into the wire. Now apply the solder to the point where wire and iron meet letting solder be drawn into the whole connection. Less is more here, if you can’t see the outline of the wire when you are done, yet you see a blob of solder, you used way too much. When the joint cools, run your fingers over the entire length of the solder and make sure no wires are sticking out that might pierce the insulation. If you find any, use your pliers or a small file to smooth them out. If the insulation is thick, wrap some electrical tape around the solder joint to flush it. This will prevent kinking. Now either insulate with quality electrical tape or heat shrink. To tape the connection, make sure your hands are first clean and dry. Even the slightest oils will foul the adhesive on the tape. Take about an inch of tape, and tightly wrap the tape in a helical fashion from about 1/4 inch of the insulation on one side to 1/4 inch on the other. Heat shrink, on the other hand comes in tubing. Cut an appropriate length of tubing and slide it over one of the wires before twisting them together. Then, after soldering the joint, wait a second for the joint to cool, and then slide the tubing over the connection. Use a torch or a heat gun to shrink the tubing. Be careful not to scorch the heat shrink or you'll end up having to tape over it anyway. "Tap Soldering" CAUTION: DO NOT USE ACID CORE SOLDER. Silver solder makes a very good connection. This method is used when tapping into other wires. For instance installing alarms or remote starters where the factory wiring needs to be tapped into but not lose its original strength. Strip back about an inch of insulation from the middle of the wire being tapped. Use some type of probe (a dental pick or a small flat head screwdriver) to separate the wire. Strip back an inch of insulation from the tapping wire, insert in the middle of the original wire, then twist them all together. Prime the tip of the soldering iron with a little solder. Hold the the iron on wire until a little solder is drawn into the wire. Now apply the solder to the point where wire and iron meet letting solder be drawn into the whole connection. Again, less is more here, if you can’t see the outline of the wire when you are done, yet see a blob of solder, you used way too much. Run your fingers over the entire length of the solder and make sure no wires are sticking out that might pierce the insulation. Now either wrap tightly with quality electrical tape or apply heat shrink. Be careful not to scorch the heat shrink or you'll end up having to tape over it anyway. "Butt/Barrel Crimp Connectors" Again, some shops swear by this method for its speed, while others enforce soldering only. There are insulated and non-insulated barrel (butt) connectors both being either seamed or seamless. The differences between seamed and seamless are mainly price (seamless cost more) and crimping methods. With seamed barrels there is a split running the length of the barrel. If crimping is done on both sides of the seam, the barrel will flatten out and not hold the wire tightly. When crimping is done on the seam and the opposite wall, the barrel tends to concave digging into the wire holding it more securely. With the more expensive seamless barrels you can crimp on it all around the barrel and it closes the same way. This saves time since you don't have to check the position of your crimp. Now with insulated and non-insulated barrels its more of a user preference. There are also different crimpers for both types. Insulated barrel crimpers look like a pair of pliers with 2 crescent shape groves on each side. While the non-insulated barrel crimpers have a groove and a spike on the other side. It is not recommended to use non-insulated crimpers on insulated barrels as it pierces the insulation leaving bare metal to cause problems. To crimp 2 wires, first determine the proper barrel size for wire gauge. Now strip back both wires so that when inserted into the barrel they will not extend past the middle while also keeping all stripped wire inside the barrel. Insert wires into barrel while twisting to prevent frayed wires from sticking out of the connector. Line up crimpers over the metal on each side and crimp (Put spike on flat part for seamed connectors). DO NOT crimp on the ends where only nylon is or the connection will not hold. l. Remove one-half (1/2) inch of insulation from each wire that needs to be spliced. 2. Place a piece of heat shrink tubing on one side of the wire. Make sure the tubing will be long enough to cover and seal the entire repair area. 3. Place the strands of wire overlapping each other inside of the splice clip (Figure 6). 4. Using crimping tool 8272 or equivalent, crimp the splice clip and wires together (Figure 7). 5. Solder the connection together using rosin core type solder only (Figure 8). CAUTION: DO NOT USE ACID CORE SOLDER. Silver solder makes a very good connection. 6. Center the heat shrink tubing over the joint and heat using a heat gun. Heat the joint until the tubing is tightly sealed and sealant comes out of both ends of the tubing (Figure 5). Last edited by 8-Ball; 04-02-2008 at 06:26 PM. |
#2
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1) Strip 1/2 inch from each wire to be paired.
2) Twist said ends together. 3) Wrap with a 2 in piece of electrical tape. 4) Tie wrap wires to frame as needed.
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#3
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very nice Mike but damn man you have way to much free time on your hands... I want a job like yours...
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#4
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I prefer using butt splices...the kind without insulation. Then liquid tape, then shrink wrap. Use this for marine applications and they never fail.
http://www.thetapeworks.com/liquid-tape.htm |
#5
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My soldering iron is bigger then yours.
I don't like crimp connections, on moving thing. No proof why I don't, but jsut doesn't seem good. Actually I don't care for any splice. But would go solder if I had too. I carry wire nuts on the bike for road side repairs. |
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I've never had a problem with either, but my brain is calmer when I know that they are soldered...
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#7
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Raychem solder splices, such as found here, are the shiznit.
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Tim Ancient '79 FXS w/ probably about the same HP as a tractor Equally ancient '79 Massey Ferguson 255 Somewhat dilapidated, yet functional, Kubota L2500 '20 Branson 3620 '18 Ram 3500 Diesel '02 Wrangler X, 4" lift on 33 x 12.50s Wilderness Systems Tarpon 140 Felt Nine 50 Killin' more bees than Monsanto . . |
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Quote:
__________________
Tim Ancient '79 FXS w/ probably about the same HP as a tractor Equally ancient '79 Massey Ferguson 255 Somewhat dilapidated, yet functional, Kubota L2500 '20 Branson 3620 '18 Ram 3500 Diesel '02 Wrangler X, 4" lift on 33 x 12.50s Wilderness Systems Tarpon 140 Felt Nine 50 Killin' more bees than Monsanto . . |
#9
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Hook Method (I like it)
Strip back the insulation. Tin both wires to be connected (fill them with solder) Slide HeatShrink on one of the wires before making the connection. Use needle nose pliers, make a small hook on each wire. Hook the wires togehter. Squeeze the hooks together ,tight. Good mechanical bond. Solder the hooks together. Slide the heat shrink over the connection. Shrink it It will never pull loose. Wire would break somewhere else first. Makes a nice neat small connection. You can do it in tight working places.
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JONAS Sherlyn Popelka, Fugitive, Aggravated Assault, Golf, DUI USMC 82-88 Semper Fi, PGRider 2004 Road King |
#10
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The hook method is the one I use the most.
Also, a good flux paste will speed up the heat transfer. This will help you to not melt the insulation around the joint.Make sure to clean the joint with alcohol before sealing. The flux core in the solder and/or the flux paste that you use for heat transfer can cause corrosion.
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Like a Boss. [img][/img] Stinky pinky gulp and guzzle big rig snooze and stop. "History does not long entrust the care of freedom to the weak or the timid" - Gen Eisenhower.
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#11
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The mere mention of using electrical tape makes me cringe. Fine for beside the road, but in the shop, heat shrink is the only way to go for a soldered connection. They make under the hood crimp connectors that have heat shrink as the insulation. They seal real good after crimping and heating. I have used them with good results.
Best is twisted, soldered and heat shrink. If in an area that will get a lot of water, I have also squirted clear silicone into the heat shrink tubing before shrinking it to water proof the connection. Another tip, never use those damn wire splices that use insulation displacement to splice into a wire. They are crap and will fail over time. Talonchief's solder splices work great and are quick and easy if you can get them. |
#12
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Crimps can also vibrate loose and oxidize. A solder connection is impervious to both scenarios.
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Bob "Turd Herder" Sh!t doesn't stink unless ya' poke it! Deut 23:12-13 (How to sh!t in the woods) |
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Very nice presentation and argument session.
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Cloudrider 2010 Former Original Doof Creator of the 43 & 7 hand signs... Original Cat Herder KC. |
#14
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Quote:
A properly crimped splice/connection, stress properly, is at least as secure as an equally well soldered connection and is faster, cheaper and less prone to require rework.
__________________
Tim Ancient '79 FXS w/ probably about the same HP as a tractor Equally ancient '79 Massey Ferguson 255 Somewhat dilapidated, yet functional, Kubota L2500 '20 Branson 3620 '18 Ram 3500 Diesel '02 Wrangler X, 4" lift on 33 x 12.50s Wilderness Systems Tarpon 140 Felt Nine 50 Killin' more bees than Monsanto . . |
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Got to go with the Chief on this one. Remember, all the pins and sockets in every connector on that bike are crimped. Granted, with a machine or the $200+ tool required to properly crimp the terminal, but they are all crimped. Secret is a proper crimp provides an air tight connection between the terminal and the wire so the joint does not corrode.
Comes down to proper, so does the solder joint. Too much solder with a cold solder joint will crack and provide only a little better connection over time than just twisting the wires together. |
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