Wire Numbers?

I have a burnt fusible link on a wire attached to the engine wiring harness block. The fusible link was blue and the wire is red. The splice between the fusible link and the wire has a number "2" on it. Is this number the wire number?

Smitty

The number 2 doesnt mean anything. All a fusible link is, is a wire 2 guages smaller than than the main part.. i.e. the red is a 10 guage and the blue is a 12 guage...the black portion is just where it splices together. The bigger wire can carry more amps through it than the samller wire so when it shorts, it burns up the smaller wire instead of your truck. Find your short or high amp draw..cut off the splice and blue wire and go buy some 12 gauge wire and resplice it.

I don't know if this is what you are looking for but it has come in handy for me http://www.olive-drab.com/od_mseries_circuits.php3

Thanks for the info guys. I have a good assortment of fusible link wire on hand so replacing them isn't a problem. I had just never noticed that the different splices for the fusible links had different numbers cast into them. I've replaced three of the links so far, two of them had patch jobs on them and the one that goes to #2 generator was fried.

Once I locate a replacement starter relay and another battery, I'll be ready to test the electrical system. The parts houses don't have the relay, but Chevy says they can order it on Monday and have it Tuesday. If it checks out ok, I'll be ready to actually try to start the engine. (Might just bypass the missing relay and try starting it anyway...)

luapmoon - Great link! It's been added to my drop box. Spent 26 years in the military working on vehicles and that's the first time I've seen that list!

Smitty


1031 - Work in progress

1956 Chevy 3100 4x4, 383 stroker, TH400, 203/205 doubler, 14 bolt rear (w/Detroit), D44 front (Still open), disc brakes on all four, 35" BFG's

Located in Crestview, FL

Fuses and fusible links are good if you're close to an auto supply store. If you spend any time on cross-country travel, you might consider a circuit breaker in the circuit. They'll cool and go back to working where a fuse is a one-time deal. And no more replacement fuses can mean a LONG walk back to civilization.

There are also the in-line fuse holders, splice them in place of the fusible link and then just carry a few more regular fuses.

Come on Jones... Thats why ya always keep a box of .22 LR in the glove box!!!

Good point btw...

Yeah, you're right. The .22 WMRs are too long to fit in the fuse holders.
Be a heck of an audible blown-fuse alarm. You wouldn't need spare fuses as much as a six-pack of spare undies.