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#Post#: 55465--------------------------------------------------
Crimp, solder or both?
DIR By: Roveerman
Date: March 25, 2013, 3:41 pm
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Hi all
Been doing some running repairs, I have a harness from
autosparks and it came with soldered terminals, some of these
are now failing, in the past I swore that soldering was the only
way to do the job but now I'm not so sure.
The bullet connections I've done in the past seem to suffer from
corrosion and the wire fails just behind the bullet, is this
possibly from a reaction with the flux?.
I have now swapped to crimp on terminals and have invested in a
set of ratchet crimpers and they seem to do a good job.
What is the general consensus as to which is best and which way
would you recommend.
#Post#: 55469--------------------------------------------------
Re: Crimp, solder or both?
DIR By: 982knn
Date: March 25, 2013, 4:07 pm
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I'd have thought that soldering would give the most reliable
joint.
You could also weatherproof the joint by using heat shrink
tubing over the soldered end, and I'm sure that this would
improve the reliability.
Crimped joints OK too, particularly if you waterproof them.
Mark
#Post#: 55472--------------------------------------------------
Re: Crimp, solder or both?
DIR By: steifbear
Date: March 25, 2013, 4:11 pm
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The best way I have found is to strip the shitty plastic
insulation off the terminals and crimp them on with out it then
heatshink over the top.
Doing it this way you can check its held the wire properly and
you can make the conection waterproof(ish)
Also it looks a lot smarter.
Pete Stevens-with-a-V
#Post#: 55482--------------------------------------------------
Re: Crimp, solder or both?
DIR By: bob86
Date: March 25, 2013, 4:41 pm
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I do the same as Steifbear but put a bit of solder on after
crimping. Just remember to let it cool before trying to slide
the heatshrink over the terminal.
#Post#: 55483--------------------------------------------------
Re: Crimp, solder or both?
DIR By: parksy64
Date: March 25, 2013, 4:44 pm
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Ratchet crimp and heat shrink for me :thumbs:
#Post#: 55491--------------------------------------------------
Re: Crimp, solder or both?
DIR By: espacekiller
Date: March 25, 2013, 5:06 pm
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I am a fan of Crimp solder heatshrink for connectors, If you
need a strong joint the adheasive lined heatshrink is good,
I also like to use a squirt of silicon grease or vasoline in
the female receptacle ;D
#Post#: 55493--------------------------------------------------
Re: Crimp, solder or both?
DIR By: paulnb57
Date: March 25, 2013, 5:17 pm
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I understood that vehicle wiring connectors are crimped rather
than soldered as a soldered joint can introduce a weak point
where the joint flexes at the interface between solder and wire
whereas a crimped joint leaves all the individual stands able to
flex but not break resulting in a more reliable joint.......
Paul
#Post#: 55494--------------------------------------------------
Re: Crimp, solder or both?
DIR By: GlenAnderson
Date: March 25, 2013, 5:17 pm
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Crimp, don't solder.
I'll qualify that a bit. Good quality crimp on terminals, fitted
with a proper ratchet crimping tool. Not those shitty
red/blue/yellow plastic coated bits of rubbish.
If you solder, the solder wicks up the end 1/4" or so of the
copper strands, rendering them inflexible and prone to failure
from vibration. Also, the flux is corrosive, not normally a
problem, but in a vehicle where it gets exposed to damp the flux
will act as an electrolyte between the copper wire and the brass
crimp causing the copper to rot away.
Save soldering for inside assemblies that can be protected from
both the damp and vibration/movement. For the rest of the loom
invest in some proper crimp on bullets and terminals. If
originality isn't an issue, then some of the modern waterproof
multi-pin connectors are very good too.
Have I said don't solder yet?
#Post#: 55512--------------------------------------------------
Re: Crimp, solder or both?
DIR By: seriesewan
Date: March 26, 2013, 7:45 am
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crimp all the way,
putting my work hat on, most jobs we solder the terminals but
on any transport job for a particular customer they insist on
crimping or screw connecting all terminals. I guess the logic
spoken of by mr anderson is correct.
#Post#: 55517--------------------------------------------------
Re: Crimp, solder or both?
DIR By: espacekiller
Date: March 26, 2013, 9:08 am
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Hmm intresting, :-? I have always tried to solder any joints
just from stuff i have learnt working at BT, however most of
this is internal wiring, I have soldered stuff on the car and
never had an issue but i can see the good argument for crimping,
especially if it is protected with grease.
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