| Re: [GMCnet] Is the main fuseable link wire made up of standard wire? ( It protects from overlosd fires ) [message #339977 is a reply to message #339969] |
Mon, 07 January 2019 09:50   |
James Hupy
Messages: 6806
Registered: May 2010
Karma:
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Senior Member |
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This fusible link conversation caused me to research some GM information
(Official original GM service manual) to see what the engineers who built
this thing had in mind. They say, that the fusible links, as used in the GM
MOTORHOME is sized 4 wire gages smaller than the wire that is protecting.
And that when you replace one that has failed, after you correct the cause
of the failure, you should BOTH CRIMP IN COPPER, AS WELL AS SOLDER WITH
RESIN CORE SOLDER, both ends of the repair. Follow that with insulation.
Jim Hupy
Salem, Or
On Mon, Jan 7, 2019, 7:03 AM Matt Colie RF_Burns wrote on Mon, 07 January 2019 07:21[/color]
>> Matt,
>> I don't think you want to replace the fusible link with a big fuse. Most
> fuses of the mega stereo high amperage type would blow too fast. The
>> other thing is a fusible link is a well sealed, minimum connection
> device. Most fuses (fuse holders) will corrode and give issues before the
> usual
>> life of the vehicle is over.
>>
>> My understanding of the fusible link is that it acts like a very very
> slow-blow fuse in its characteristics. It can withstand a backyard (and
>> licenced) mechanic Sparky shorting the odd wire and live through it.
> They are protection against a very high prolonged catastrophic short such as
>> would happen in crash.
>>
>> I tried looking up the electrical specs one time, but did not find
> anything. They only seem to be sold on wire gauge size.
>
> Bruce,
>
> Unfortunately you make a good case as usual.
>
> Michigan uses a lot of salt and corrosion here is a big issue.
>
> It was so bad that when ever I approached a vehicle that is have electric
> issues, I would find an yank on that link. More than a few came apart
> because of corrosion at the exposed copper at the ends. More than one
> owner was initially annoyed, but forgave me when the new link fixed his
> problem.
>
> Reminds Me: My stock of fusible link wire is low.....
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
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