I know its basically a good idea to fuse the alt to batt power wire when doing the "big 3" . I did this on my last car which came from the factory fused and had a wire run of about 3.5 feet. So my question is this, is this necessary even if it wasnt fused from the factory? Also the distance is only about 2 feet or less from alt to batt so what do you think? Thanks,
generally yes its a good idea to put a fuse there, and use a fuse rating matched to the peak current capacity of the wire.. like 225A for 4AWG etc. This fuse is simply there to protect against a dead short if something penetrates the wire, or it comes loose from the connection, to prevent an engine fire.
thanks you guys, i appreciate the info looks like I'll be fusing it . I havent posted here in awhile and its good to see some familair faces still helping out.
I can't believe how expensive fuses and their corresponding holders are.