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Solder or just crimp? #1306396 Mon Apr 08 2019 03:00 PM
Joined: Jun 2017
Posts: 182
M
Matt_Texas Offline OP
Shop Shark
I got an EZ wire 21 mini. For my 1950 3100.

I want to do this right but I'm getting a lot of back and forth on whether to solder or not. Each argument sounds convincing too. Are factory wires soldered on new stuff?


I plan to start wiring with next pay check.

Re: Solder or just crimp? [Re: Matt_Texas] #1306399 Mon Apr 08 2019 03:06 PM
Joined: Feb 2004
Posts: 19,010
H
Hotrod Lincoln Offline
Boltergeist
Factories don't necessarily do things "right"- - - -they choose to use the methods that will get a vehicle through its warranty period with a minimum of free repair work. If you're interested in your wiring lasting more than 8-10 years without problems, solder the connections. Crimped connections are "good"- - - -properly soldered ones are "better". A poor soldered connection isn't as good as a crimp done right.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Solder or just crimp? [Re: Matt_Texas] #1306401 Mon Apr 08 2019 03:15 PM
Joined: Apr 2008
Posts: 715
F
Forty9 Offline
Shop Shark
Better to solder now than wish you had after installing. I soldered as many connections as I could when I first got my 49 3100 in 1987 and while it was a PITA since wiring was already installed I haven't regretted all the crawling around to get it done. Done right you never have to worry about it again!


Ed
Re: Solder or just crimp? [Re: Matt_Texas] #1306419 Mon Apr 08 2019 06:07 PM
Joined: Jun 2017
Posts: 182
M
Matt_Texas Offline OP
Shop Shark
I hadn't thought of them making the vehicle last just long enough for the warranty...

Solder needs to be resin 60/40?

Are some solder guns better than others?

Re: Solder or just crimp? [Re: Matt_Texas] #1306420 Mon Apr 08 2019 06:07 PM
Joined: Apr 2002
Posts: 1,487
F
Fox Offline
Shop Shark
I did both and heat shrink wrapped all of them. Takes a long time but peace of mind.


In the Stovebolt Gallery
More pictures here

1951 GMC 9430 1 ton dually—-Shiny!

1970 Chevrolet C10 - Grandpa’s- My first truck.—in progress to shiny
1972 Chevrolet C20- rusted
1970 Chevrolet K20 Suburban—rusted.
1950 Chevrolet 1300- in progress to shiny.

Parts trucks-
1951 GMC 9300
1951-GMC 9430
1951- Chevrolet 1300
Re: Solder or just crimp? [Re: Matt_Texas] #1306432 Mon Apr 08 2019 07:59 PM
Joined: May 2005
Posts: 6,182
B
bartamos Offline
Master Gabster
You will find out that soldering is not all that easy. Orienting the wire while holding the terminal end in some clamp or other. You need two hands to solder. Then you will melt the insulation. The heating of the insulation and the solder on the joint, will cause the termination to be overly stiff and not flexible. Then getting solder on a place that won't allow terminal to be installed in a connector shell. Screwing up the connector shell trying to get it in there. You may have "cold" solder joints you won't see. Not to mention it will take you forever to finish.

A good crimp contact using a good crimp tool is plenty good for automotive. Solder is not necessary. The crimps will not come loose.


I'm away on an ego trip. Will be back on Feb 30.


Re: Solder or just crimp? [Re: Matt_Texas] #1306436 Mon Apr 08 2019 08:31 PM
Joined: May 2005
Posts: 1,602
B
beltfed Offline
Shop Shark
By now it should be obvious that both crimped and soldered connections have good and bad points. I have been soldering since I was 18 and in the army. Personally I don’t use a solder gun but a pencil type. Guns used improperly create too much heat which is bad. As far as crimping always use the type that has a ‘tooth’ to bite into the connector. Always put the tooth opposite the connector seam. The best connection for wire has two components, electo-mechanical. When possible I crimp a connector like the “Staycons” we see so often. Then I tin and heat with the pencil in a selected area and watch the solder ‘flow’ into the barrel of the connector. I would think you could learn some tricks from Utube.


Six volt guy living in a twelve volt world
Re: Solder or just crimp? [Re: Matt_Texas] #1306437 Mon Apr 08 2019 08:47 PM
Joined: May 2005
Posts: 6,182
B
bartamos Offline
Master Gabster
Of course, this issue is a very old issue that never gets resolved.

We always allow the person to do what they wish after all the opinions are in. smile


I'm away on an ego trip. Will be back on Feb 30.


Re: Solder or just crimp? [Re: Matt_Texas] #1306443 Mon Apr 08 2019 09:31 PM
Joined: Feb 2004
Posts: 19,010
H
Hotrod Lincoln Offline
Boltergeist
I use the highest-wattage pistol grip solder gun I can find, use very small-diameter solder, and don't spend enough time on any particular connection to experience any of the heat-migrating problems our resident curmudgeon describes. Getting the connection HOT quickly and getting a good solder flow only at the terminal is the trick to making good low resistance connections without melting everything else in the neighborhood. I consider a 350-400 watt gun to be an abso9lute minimum, and I've got the tip up to full heat before touching it to the connector.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Solder or just crimp? [Re: Matt_Texas] #1306444 Mon Apr 08 2019 09:40 PM
Joined: May 2005
Posts: 6,182
B
bartamos Offline
Master Gabster
If you mean me, Yes pot, I am black.




I'm away on an ego trip. Will be back on Feb 30.


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