Moparts

Fuseable link

Posted By: JT01

Fuseable link - 05/28/15 06:20 PM

I need a new one for my 69 charger anybody know where I can get one I've tried year one and classic industries there both out of stock. Thanks for any help
Posted By: stumpy

Re: Fuseable link - 05/28/15 06:22 PM

Any local parts store will carry fusible links in premade lengths or by the foot.
Posted By: JT01

Re: Fuseable link - 05/28/15 07:46 PM

Ok thank you
Posted By: crlush

Re: Fuseable link - 05/28/15 08:22 PM

Napa
Posted By: MaximRecoil

Re: Fuseable link - 05/29/15 12:46 AM

The fusible link in my '69 Charger had been replaced by someone with a regular wire at some point, just twisted and taped in there. I bought a new 16 gauge fusible link at the local autoparts store for a few dollars, which has the fusible link label on it and a ring terminal, but is just bare on the other end. I didn't have a new Packard 56 terminal to crimp onto it, so I reused the original one. The problem was that it was still factory-crimped onto that short remaining section of the original fusible link. So I drilled the wire strands out of the crimped area with a 1/16" drill bit, inserted the new fusible link, and then recrimped it with an open barrel crimping tool, like so:



Posted By: ahy

Re: Fuseable link - 05/29/15 01:21 AM

My fusible link failed not as a result of overload, but poor connection and heating at the spade terminal. Showed up driving in a summer rain storm... just about every OE electrical device was running. I replaced with a link from the parts store... but made the joint with ring terminals crimped and soldered plus a short 3/16" screw + lock washer + lock nut. Then taped.

I know not original, and if you dig down in the wires and look at it not pretty but I do not have to worry about poor connection. A little 1/4" spade terminal is just pretty marginal for loads in that wire. (even with newer re-pop harness that I was running).
Posted By: screamindriver

Re: Fuseable link - 05/29/15 03:32 AM

Evans wiring has them... LINK
Posted By: Sinitro

Re: Fuseable link - 05/29/15 04:10 AM

Originally Posted By MaximRecoil
The fusible link in my '69 Charger had been replaced by someone with a regular wire at some point, just twisted and taped in there. I bought a new 16 gauge fusible link at the local autoparts store for a few dollars, which has the fusible link label on it and a ring terminal, but is just bare on the other end. I didn't have a new Packard 56 terminal to crimp onto it, so I reused the original one. The problem was that it was still factory-crimped onto that short remaining section of the original fusible link. So I drilled the wire strands out of the crimped area with a 1/16" drill bit, inserted the new fusible link, and then recrimped it with an open barrel crimping tool, like so:





I would recommend that U solder that terminal as well, assures a better contact..

Just my $0.02... wink
Posted By: MaximRecoil

Re: Fuseable link - 05/29/15 05:27 AM

Originally Posted By Sinitro
I would recommend that U solder that terminal as well, assures a better contact..


Chrysler didn't use solder on the fusible link terminals, nor on any other crimp in the entire wiring harness, and neither did/does any other car manufacturer that I know of.

Solder is very useful for plumbing and printed circuit boards (I used to work in a PCB factory, through-hole soldering terminal blocks into about 1,000 PCBs a night, for 2 years, and I still do a lot of soldering at home when fixing old PCBs), but it isn't so great for car wiring. It will do in a pinch, but a proper crimp is superior.

A proper crimp is airtight, so the wire within the crimp can not corrode, and it is also still flexible. Corrosion isn't really an issue with a soldered joint either, but it is comparatively brittle, which is a bad thing in a high-motion, high-vibration environment which is subjected to many cycles of hot and cold. Cars use multi-strand wiring because of this (rather than solid core like in houses, where there is no motion), and using solder defeats the purpose of that (solder will crack a lot easier than even solid core wire). Every solder joint you add is a weak (brittle) link in the harness. You can see this for yourself by simply tinning a section of wire and then flexing it several times. It won't take long to crack.

A lot of repairs I do to old PCBs consist of re-soldering old cracked solder joints, especially on the chassis of old CRT monitors (i.e., from 1980s video arcade machines), and those aren't even usually subjected to significant motion/vibration. The cracking is mainly due to many hot and cold cycles over a long period of time.
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