73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Electrical => Topic started by: bake74 on March 04, 2013, 06:24:29 pm
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My sons 79 blazer, the battery post of the starter solenoid, has 2 wires that have fuse-able links on them. See following wiring diagram ( http://www.73-87chevytrucks.com/techinfo/wiring_diagrams/77-80_SBC_eng.jpg 2red-2a THERMO HW and 1red-2H THERMO HW ). ( the 3red-2g & 3red-2j are on one side and single wire coming out, just like diagram ).
Can any one tell me the rating for these fuse-able links. They are white round plastic fuse-able links with 16 going around the top edge and 43 running length wise.
I believe the 16 references the gauge wire, but have no clue what the 43 would reference. Can not find source for reference. The wire pulled out of one of the ends and I want to replace with a proper size inline fuse or another fuse-able link.
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My sons 79 blazer, the battery post of the starter solenoid, has 2 wires that have fuse-able links on them... 2red-2a THERMO HW and 1red-2H THERMO HW.
...Can any one tell me the rating for these fuse-able links?...
- The "2" Red (Ckt 2A) link is 14-gauge fusible wire.
- The "1" Red (Ckt 2H) link is 16-gauge fusible wire.
- The metric wire sizes in quotation marks, above, are in mm2.
The wires protected by the two fusible links are one "10-gauge" Red (Ckt 28) and two "12-gauge" Red (Ckt 2G and Ckt 2J), respectively. You can find a convenient wire size conversion table on the first page of the 79 wiring manual (http://www.73-87chevytrucks.com/techinfo/7387CKMans//Wiring/ST_352_79_1979_Chevrolet_Light_Truck_Wiring_CK_10_30_Only.pdf) in our Technical Pages.
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Look here for some additional info on fusible links
http://forum.73-87chevytrucks.com/smforum/index.php/topic,11972.0.html
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I guess I was not clear enough, I was looking to find out what size the actual " plastic" fuse-able link was.
There are 2 of them coming off the starter solenoid, about 1/4" in diameter, and about 1" long. I have included a pic if it is not too big. It is the round plastic piece I am holding.
I know the wire sizes, but like I said the 16 is around the top, and you can see the 43 in the pic. I just don't want to go too small, it's my son's transportation.
The wire pulled out of 1 end, no way to fix this one.
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If I understand your question, the image shows the urethane insulation that encases the splice between the fusible wire and the harness wire. There's no fuse hidden inside of it. The 'fusible link' is the roughly 6" of wire between that 'splice' and the terminal end that fastens to the starter post. Replace the last 6" of wire (including the 'splice') with the correct size link. Did I do a better job of answering your original question?
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Yes thank you, was not sure if it needed something special or just a fuse-able link wire. Now I can get it fixed and mark 1 more thing off my plate "per say".
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The plastic is not the fusible link x2 it Identifies clearly where the fusible link is.
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That's the part I was confused about, thanks for the replies, got it all fixed up and running again. Used some universal style fuse-able links I bought.
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The plastic is not the fusible link x2 it Identifies clearly where the fusible link is.
It also helps to contain the nastiness of a burn-through, not sure how effective, but I like it better than just running the thinner wire in its place, which is what I was told to do when I was looking for the wire to redo a couple connections on my '86. Not a great place for shortcuts, methinks.