64 barracuda owners, do you have a short green fusable link coming from the starter relay? If so where does it go? Into the bulkhead connector? Thanks
Jim the G slot is the hot wire coming from the starter relay. It doesn’t make sense to me why they would have a solid hot wire and a fusible link also.?Yes, it would go into the bulkhead. Cavity "G"...
The fusible link is undersized section of a specific length to create a fuse that can tolerate short periods of higher current.Jim the G slot is the hot wire coming from the starter relay. It doesn’t make sense to me why they would have a solid hot wire and a fusible link also.?
The main job of the fusible link is to open if the battery is accidently grounded.
For example if the insulation on the main feed to the headlight switch rubs off against a sharp edge under the dash.
View attachment 1715456290
The link will turn to smoke almost instantly.
I agree 100%A better statement might be that the link will blow if some main feed in the harness is grounded.
This should interesting, went to move the '65 Valiant Signet convertible from one end of the back yard to the other and the motor died. Now everything completely dead, no lights, no starter, no nothing. Looking at the fusible link at the solenoid, it appears someone in the past may have replaced it with a plain old wire. I did not smell or see any burning/melting wires when the vehicle shut down, which I hope is a good sign.
I also noticed after sitting for so many months now, the master cylinder is devoid of brake fluid. Won't go under its own power and now won't stop either--have my work cut out for me this Spring.
I think you lost your ground.
H'm doubt you measured current. Current is only flows through the fuse when one of those light are on.I checked for power to the tail/stop light fuse--checked out OK(current available there)
High current can overheat the wires and a fusible link is really no protection against typical high currents.Mattax, is it necessary to have a fuse link on alternator output wire if there's one on red batt. wire at bulkhead? I could see where excess alt output could overheat wires before current exits firewall and hits that "batt" red wire fuse link at starter relay.....but please correct me if I'm wrong.
Nice diagrams, by the way. Thanks.
MAD has to do it with their hack to protect the alternator output circuit from the battery. Short to ground at the alternator output stud or inside the alternator does happen occassionly.So the alternator cannot overcharge, and send too much current to the main splice, possiblly burning ignition switch or anything else connected to the main splice? I bring this up because one of the diagrams shown in MAD does show a second fuse link in the alternator wire:
Catalog (madelectrical.com)
However, This diagram also has the mod where the alternator output will be routed directly to the BAT. POS. stud at the starter relay, rather than going thru the bulkhead to ammeter (which I bypassed back to the batt red wire). So maybe this mod necessitates a second fuselinK?