ElectronicsNeed help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?
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A 'bird that I'm working on has three blown fusible links for both side headlight motors, as well as the fog link relay (I think they are fusible links E, F & G in the '85 Firebird Helm service manual). I'm going to replace them with fuses since I can't find any 22 gauge fusible link wire (none of the auto shops or even the dealer has them) and I don't like fusible links. The problem is, I can't find any circuit amp ratings in my Helm service manual... can someone tell me where to find them for the headlight motor relays and fog light relay so I can get the correct fuses?
Looking at this again, the headlight motor and fog light relay wires are 16 gauge. Can I use 20 gauge fusible link wire to replace the 22 gauge that I can't find anywhere? Everything I've read regarding fusible links says to use fuse wire that is 4 sizes smaller.
A search on google using your own key words reveals (as the first choice) that the Mopar guys have it all figured out.. Here's the link ;-) Electrical Issues - MiniMopar Resources
I agree with you that fusible links are a pita, use fuses, and preferably of a lower rating than indicated.. No headlights or their motors draws 30Amps, just try to measure or calculate the actual current draw.. What should have been stated about fusible links is that they should be at least 4 sizes smaller.. The wire guages selected for use in cars is a combination of current draw and length, giving a tolerable voltage drop. The fusible link is only there to prevent the wire from melting, and has little to do with the actual current draw in the circuit and protection of motors etc..
A search on google using your own key words reveals (as the first choice) that the Mopar guys have it all figured out.. Here's the link ;-) Electrical Issues - MiniMopar Resources
Needless to say, I'm probably the king of search. I've combed through google and other forums looking for answers. I've come across that site and several others, but thanks anyways.
Quote:
Originally Posted by Fullsizewagon
What should have been stated about fusible links is that they should be at least 4 sizes smaller...
I said that in my above post. I was just curious if I can go with 20 gauge fusible link wire instead of the 22 gauge that the wiring diagram indicates (since I can't seem to find any 22awg in the auto shops or on the 'net).
Hehe, ok.. Like I said I'd use a fuse much less than 30Amps, and 20 gauge is heavier than 22 so I'd not want to go that way.. Isn't fuse wire made up of copper like the rest of the wiring? If so, just buy a 22 guage hookup wire of some sorts, strip the PVC off and insert it into the original fireproof sheath..
I've combed through google and other forums looking for answers. I've come across that site and several others, but thanks anyways. 
I was just curious if I can go with 20 gauge fusible link wire instead of the 22 gauge that the wiring diagram indicates (since I can't seem to find any 22awg in the auto shops or on the 'net). 
