Fusable link

[Street Sweeper22]

Rule of thumb is 2 sizes smaller than the wire your are protecting. If you have a 10 gauge wire you would use a 12 gauge fuse link. It will LOOK about the same size as the insulation is different. It is made to burn and be visible after it does so. There has been more than a discussion on this forum regarding this.

Thanks bro I appreciate the help. I read a couple forums on it and when I was done I think I had information overload. Sometimes it’s hard to decipher people’s opinion and what actually is the best way.

 

[pagrunt]

As I recall, and someone please correct me if I am wrong a fuse link cannot be any longer then 8"? 6"?

I cut them about 2"-4" long from my bulk roll I have in my stash.

 

[airboatgreg]

That works but I know there is an actual spec

 

[Street Sweeper22]

I found the culprit and it was this plug. There was no fusable link blown. Do you guys have any ideas about the cause?

 

[Ribbedroof]

Very common, too much draw. This was common even when the cars were only a decade old. Usually seen in areas where the A/C gets used a lot on high.

As the terminals get older and more corroded from atmospheric conditions, resistance increases and it gets worse. Really needs a weatherpak connector, or a soldered splice would be best, but you'd lose the ability to disconnect harness as a subassembly.

 

[pagrunt]

I'd fix that with its own fusable link on that as part of the repair. My harness currently has that deleted when I originally removed the A/C (& had a simular burnt plug.) I haven't figures out a fix for that issue yet. Might run a Maxi fuse coming off a seperate hot feed.

 

[airboatgreg]

The burnt connector was pretty common as it was a poor design and increased draw due to age. Bypass properly and check current draw on blower motor, check GROUND.

 

[Street Sweeper22]

That’s a good idea with the fusable link. The ground strap on the firewall has paint on it. Is this gonna cause problems?

 

[pontiacgp]

Rule of thumb is 2 sizes smaller than the wire your are protecting. If you have a 10 gauge wire you would use a 12 gauge fuse link. It will LOOK about the same size as the insulation is different. It is made to burn and be visible after it does so. There has been more than a discussion on this forum regarding this.

I have read for a fusible link it's a 4 gauge difference.

"They are generally selected to protect a particular size circuit wire and the general rule of thumb is the fusible link gauge should be 4 less than the circuit it's protecting (thus a 12 gauge circuit will be protected by a 16 gauge fusible link). "

http://minimopar.knizefamily.net/electrical-links.html


"When placing a fusible link, use a wire guage 4 gauges smaller than the existing wiring circuit. If it is a 14 gauge system, use 18 gauge fusible link wire."

http://www.jttproducts.com/store/categories/101/Fusible-Link-Wire

 

[airboatgreg]

I have read for a fusible link it's a 4 gauge difference.

"They are generally selected to protect a particular size circuit wire and the general rule of thumb is the fusible link gauge should be 4 less than the circuit it's protecting (thus a 12 gauge circuit will be protected by a 16 gauge fusible link). "

http://minimopar.knizefamily.net/electrical-links.html


"When placing a fusible link, use a wire guage 4 gauges smaller than the existing wiring circuit. If it is a 14 gauge system, use 18 gauge fusible link wire."

http://www.jttproducts.com/store/categories/101/Fusible-Link-Wire

I hear you but I don't think I agree with you. Let me do a little research. I may be wrong and I will readily admit it but if I am right you owe me a beer🙂