[DeTomaso] How bad are electrical splices?

[jderyke at aol.com]

I'm far away from an electronics expert, but in my experience, even with the proper splicing tool, if the splice's wire socket is not closely matched to the wire gauge you're using, you get a visually perfect splice-joint that pulls apart with finger pressure.Sometimes, when I simply don't have the right wire-size fitting handy, I will double the stripped wire and insert the double end into an oversized socket, then splice it with the tool. Probably very not-right but it does seem to work. I've also soldered such conglomerates but that tends to melt the nice little plastic insulators.
 

 

 

-----Original Message-----
From: Dave Londry <davel at emspace.com>
To: detomaso <detomaso at poca.com>
Sent: Sun, Nov 9, 2014 6:34 pm
Subject: Re: [DeTomaso] How bad are electrical splices?


   And the additional point is that crimped connections are much, much
   less susceptible to fatigue failure.
   The issue there is -- you need a decent crimping tool.
   The 2 buck POS in the crappy kits is only good to hang the wire into
   the connector until you're not looking.
   I see that HF has a "real" crimper for 15 bucks. I've never tried that
   one so I can't say too much.
   60 bucks gets you a decent set with multiple jaw types.
   [1]http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B
   0045CUMLQ/ref=sr_1_8?ie=UTF8&qid=1415586393&sr=8-8&keywords=crimp+tool+
   set
   dave

   On 09/11/2014 4:31 PM, [2]jderyke at aol.com wrote:

This is standard stuff for tough mobile applications, Stephen.
Strain-relieving is about supporting a soldered connection to prevent
fatigue failure at the point where the solder ends. A helicopter is a
great example of an environment in which a solder joint, with wire
that's free to vibrate, can come apart in hours.
dave

   Correct- support flexing wires about every 4". One of the most critical
   is the wire(s) for a crank-fired ignition. One Pantera owner's
   high-dollar super-ignition system broke two pick-ups- with factory
   strain-reliefs-  in a 500 mile run to 'Vegas and back. In the
   installation, there was a 12" long unsupported section next to the
   harmonic balancer. He had extra sensors drop-shipped to him on the way
   from the embarrassed mfgr and used all 3 on the trip. NOT a happy
   camper that weekend!  FWIW- J DeRyke

References

   1. http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B0045CUMLQ/ref=sr_1_8?ie=UTF8&qid=1415586393&sr=8-8&keywords=crimp+tool+set
   2. mailto:jderyke at aol.com

 
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-------------- next part --------------
   I'm far away from an electronics expert, but in my experience, even
   with the proper splicing tool, if the splice's wire socket is not
   closely matched to the wire gauge you're using, you get a visually
   perfect splice-joint that pulls apart with finger pressure.Sometimes,
   when I simply don't have the right wire-size fitting handy, I will
   double the stripped wire and insert the double end into an oversized
   socket, then splice it with the tool. Probably very not-right but it
   does seem to work. I've also soldered such conglomerates but that tends
   to melt the nice little plastic insulators.

   -----Original Message-----
   From: Dave Londry <davel at emspace.com>
   To: detomaso <detomaso at poca.com>
   Sent: Sun, Nov 9, 2014 6:34 pm
   Subject: Re: [DeTomaso] How bad are electrical splices?
   And the additional point is that crimped connections are much, much
   less susceptible to fatigue failure.
   The issue there is -- you need a decent crimping tool.
   The 2 buck POS in the crappy kits is only good to hang the wire into
   the connector until you're not looking.
   I see that HF has a "real" crimper for 15 bucks. I've never tried that
   one so I can't say too much.
   60 bucks gets you a decent set with multiple jaw types.
   [1][1]http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B
   0045CUMLQ/ref=sr_1_8?ie=UTF8&qid=1415586393&sr=8-8&keywords=crimp+tool+
   set
   dave

   On 09/11/2014 4:31 PM, [2][2]jderyke at aol.com wrote:

This is standard stuff for tough mobile applications, Stephen.
Strain-relieving is about supporting a soldered connection to prevent
fatigue failure at the point where the solder ends. A helicopter is a
great example of an environment in which a solder joint, with wire
that's free to vibrate, can come apart in hours.
dave

   Correct- support flexing wires about every 4". One of the most critical
   is the wire(s) for a crank-fired ignition. One Pantera owner's
   high-dollar super-ignition system broke two pick-ups- with factory
   strain-reliefs-  in a 500 mile run to 'Vegas and back. In the
   installation, there was a 12" long unsupported section next to the
   harmonic balancer. He had extra sensors drop-shipped to him on the way
   from the embarrassed mfgr and used all 3 on the trip. NOT a happy
   camper that weekend!  FWIW- J DeRyke

References

   1. [3]http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B004
5CUMLQ/ref=sr_1_8?ie=UTF8&qid=1415586393&sr=8-8&keywords=crimp+tool+set
   2. [4]mailto:jderyke at aol.com

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Detomaso Forum Managed by POCA

DeTomaso mailing list
[5]DeTomaso at poca.com
[6]http://poca.com/mailman/listinfo/detomaso_poca.com

References

   1. http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B
   2. mailto:jderyke at aol.com
   3. http://www.amazon.com/Astro-Pneumatic-9477-Interchangeable-Tool/dp/B0045CUMLQ/ref=sr_1_8?ie=UTF8&qid=1415586393&sr=8-8&keywords=crimp+tool+set
   4. mailto:jderyke at aol.com?
   5. mailto:DeTomaso at poca.com
   6. http://poca.com/mailman/listinfo/detomaso_poca.com