Re: '67 Fiat 124 Berlina - build and maintain
Posted: Sun Apr 03, 2016 5:36 pm
I thought all early 124s had rear anti roll bars. Its great but the bushings where the bar meets the axle seem to be NLA. At some point I'll need to track down a substitute.
In the mean time as with most 124s the electrical system is showing its age. Despite a 65A alternator electric things are slow. On cold and rainy evenings with the heater fan, wipers and headlights the system really struggles. So I figured I would swap out the bayonet style fuse holder for a fuse / relay panel. Here is the wiring diagram for the early sedan, its amazing how much runs off that first fuse!
To get this going I picked up a 2000 Jeep PDU with wiring off ebay for ~$5, a bunch of Metri-pack 280 crimp connectors and a Cooper Bussmann 15303-4-0-4 Mini Fuse Panel. Despite being called bussmann this panel has no busses. I picked it out to have the most flexibility but in retrospect I could have gone with a buss relay side and saved some wiring. Here is a pic of the panel and some of the wires after pulling them out of the PDU.
Here is the wiring diagram I cooked up, I tried to label the color wires from the existing Fiat fuse bar:
I think technically I should have the fuses before the relays but for the high & low beams I wanted to keep a R/L fuse but only use two relays so I put the fuses after the relays. The relays are 30A and fuses are all <=20A so I think they will blow before the relay melts.
I also want this to be close to drop in for the existing fuse bar, I'm not looking to re-wire the whole car!
I left one relay & fuse for future accessories, thinking usb charging port, blue-tooth amp etc.
The last relay I was leaving for the fuel pump ( right now the electric pump is wired to the ignition ) but I am not sure how this would work with the Fiat's oil pressure switch, only posts here I could find were talking about needing special timer delay relays....
In the mean time as with most 124s the electrical system is showing its age. Despite a 65A alternator electric things are slow. On cold and rainy evenings with the heater fan, wipers and headlights the system really struggles. So I figured I would swap out the bayonet style fuse holder for a fuse / relay panel. Here is the wiring diagram for the early sedan, its amazing how much runs off that first fuse!
To get this going I picked up a 2000 Jeep PDU with wiring off ebay for ~$5, a bunch of Metri-pack 280 crimp connectors and a Cooper Bussmann 15303-4-0-4 Mini Fuse Panel. Despite being called bussmann this panel has no busses. I picked it out to have the most flexibility but in retrospect I could have gone with a buss relay side and saved some wiring. Here is a pic of the panel and some of the wires after pulling them out of the PDU.
Here is the wiring diagram I cooked up, I tried to label the color wires from the existing Fiat fuse bar:
I think technically I should have the fuses before the relays but for the high & low beams I wanted to keep a R/L fuse but only use two relays so I put the fuses after the relays. The relays are 30A and fuses are all <=20A so I think they will blow before the relay melts.
I also want this to be close to drop in for the existing fuse bar, I'm not looking to re-wire the whole car!
I left one relay & fuse for future accessories, thinking usb charging port, blue-tooth amp etc.
The last relay I was leaving for the fuel pump ( right now the electric pump is wired to the ignition ) but I am not sure how this would work with the Fiat's oil pressure switch, only posts here I could find were talking about needing special timer delay relays....