
Solder or Crimp
#26
Posted 01 February 2009 - 09:37 PM
#27
_FCCOOL_
Posted 09 May 2009 - 01:19 PM
i reckon solder is better but it takes longer to fit the terminals, to join wires i only ever solder, i work at mercedes benz and they have all the terminals soldered on, ive heard lots of neg stuff about solder failing, but in real life crimp terminals fail much much more from what ive seen.
i always give the terminals a good tug to make sure they crimped properly, i had some terminals from k mart that had thin metal used in them, those things never pass a good tug test
#28
_kingy_
Posted 09 May 2009 - 03:03 PM
solder is for fixing radiators lol.
Edited by kingy, 09 May 2009 - 03:04 PM.
#29
_cruiza_
Posted 09 May 2009 - 03:06 PM
#30
Posted 09 May 2009 - 04:57 PM
It is said that the brittleness of a solder joint can cause the wire to break.
The extra dangling weight of a crimp joint can do the same.
I have come across crimp joiner where the insulating sleeve has moved exposing the joiner.
A crimp joint doesnt exclude environmental factors, and as such contaminants can enter the joint and cause corrosion, and ultimately a bad joint.
Soldering and heat shrinking, especially heatshrink with internal glue, will virtually eliminate breakage problems.
One also has to remember that you should not rely on solder for the strength of the joint. Placing 2 wires side by side and then soldering is not a particularly good idea. Twist them together for mechanical strength, then solder for electrical conductivity.
But.
In mining applications, where a winding reel is used, with pretty extreme pressure applied, the repairs are crimped then vulcanised.
These are cables that have conductors around the same size as heavy battery cables.
Given all this, the options for in order of my preference for automotive would be
1. Replace entire run of wire.
2. Twist, solder then use glue heatshrink.
3. Twist, solder then normal heatshrink.
4. Crimp then glue heatshrink
5. Crimp then normal heatshrink
6. Crimp only
7. Twist and tape.
This is optimal, but there are times when the preferred option isnt able to be done.
#31
_FCCOOL_
Posted 10 May 2009 - 01:21 AM
#32
_bon_scott_
Posted 10 May 2009 - 01:57 AM
#33
_426_
Posted 10 May 2009 - 08:20 AM
PLUG TERMINALS: Crimp as per factory.
SMALL POWER TERMINALS: Crimps, solder and heat shrink.
LARGE TERMINALS AND BUTT JOINS: Crimp and heat shrink.
Electrical tape shoudl be use only when no other option is available.
Its good to see there are alot of thorough auto elecs here's.
At least 90% of other "pro" electrical work I've had to deal with has been disgusting, dodgey and even dangerous.
#34
Posted 10 May 2009 - 04:08 PM
Anyone else found this? - Maybe i was doing something wrong?
#35
_Gunmetal LH_
Posted 29 August 2009 - 07:13 PM
I've rarely found a crimped joint that looked neat or wasn't corroded.
When doing a stereo or something under the dash I just use a cigarette lighter using the 'blue' bit of the flame- works fine and eliminates you stepping on the soldering iron just outside the door.
#36
_briansparks0211_
Posted 05 October 2010 - 12:45 AM
#37
_Woodsy_
Posted 05 October 2010 - 08:56 AM
#38
_BLACK LH_
Posted 06 October 2010 - 05:31 PM
Yeah, thoses splice scotch locks are pretty crap.
Quick and nasty, an auto electricians dream!
All i can say never ever use these things (unless you really hate the guy whose car it is) i spent 3 hours recently removing and soldering dodgy crimped connections, with the above scotch locks, from head lights cutting out to no high beam to no horn
I do a lot of wiring work for work and 90% of open circuits are caused by peoples "crimped" terminals
#39
_nemo355v8_
Posted 08 October 2010 - 07:58 PM
#40
_UCV80_
Posted 10 October 2010 - 08:59 PM
I also use heat shrink on everything, and i mean Everything!
I would only use solder for very important joins, such as extending wires on my 6AL.
#41
Posted 18 October 2010 - 01:51 PM
Coming from an electronics background, I've always been a soldering person.
I've also used good quality ratchet crimpers which aren't too bad.
However these days I now like using Utilux style connectors, and double crimping. The first crimp bends the tabs onto the insulation. The second crimp then bends another set of tabs over onto the bare wire. Once you do this, it's rock solid. Even if you tug on the wires now, they won't budge. Not the cheapest things to buy, but now that I'm used to them, I'd never go back to cheap stuff.
#42
_torbirdie_
Posted 18 October 2010 - 08:29 PM
Couldnt stand the narva style ones where the insulation gets crimped as well, looks ordinary and insulation would often crack. Purchased large boxes of the utilux style ones in male and female bullet style and spade connectors along with the clear plastic covers that slide on. 20 years down the track, Ive used about half of them, but disappointingly the plastic covers have gone all gooey and arent much fun to work with at all.However these days I now like using Utilux style connectors......
#43
Posted 19 October 2010 - 07:12 PM
#44
Posted 19 October 2010 - 08:03 PM
#45
Posted 19 October 2010 - 08:33 PM
We use the utilux bare crimps at work, that's why i was asking!
I have used the insulated terminals with my ratchet crimpers before but i still found that the narva crimps (but not the white clips!) give a better finish!
#46
Posted 20 October 2010 - 12:29 AM
Bon - The only problem i had with those narva white clip terminals is if you twist the blade even 0.0000001 mm then the bastards dont clip into the plastic plugs and they back out when you push the plugs together!
Anyone else found this? - Maybe i was doing something wrong?
Yep pretty much anything by Narva is absolute crap - the plug in relay bases are even worse than the white plugs. That drives me nuts when the pins back out when you plug them in. The terminals are all made way too weak. The pull to seat type are much better and cannot back out.
I have found these below and am progressively changing all of my plugs and relays over as I hide my wiring - these are all waterproof too.
I pretty much solder and heatshring everything (except the ones below with the silicon seals) due to the generally poor quality crimp connections available. The Utilux are the best of those I have used as others have said.
http://www.casperselectronics.com/store2/product_info.php?cPath=53&products_id=682
http://www.casperselectronics.com/store2/product_info.php?cPath=53&products_id=686
http://www.casperselectronics.com/store2/product_info.php?cPath=53&products_id=694
http://www.casperselectronics.com/store2/product_info.php?cPath=30&products_id=1095
#47
Posted 20 October 2010 - 05:58 AM
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