Fiat conversion wiring help

[Trav55]

I am in the process of installing a Fiat 1608 into my 1955 Traveller.

The traveler had been previously fitted with a 1275 so I am switching from the generator to the Fiat alternator.

The Fiat alternator requires an "external regulator". I've identified the terminals on the alternator. One wire supposedly goes to the Stator, another wire to the Field and a large stud (6mm) with a nut that connects directly to the battery.

Can I use the Morris regulator and if so can someone help with the connections? The Morris regulator connections are marked “A1, A, F, D, E”

The previous owner told me that he had updated the wiring harness to 1967 specs but I don’t know if this involved a change to the regulator or not.

Any help will be appreciated.

Thanks,
Steve

[bmcecosse]

No! You will have to get the special regulator that matches the alternator. Or simply fit a dynamo - or a more modern alternator with all the gubbins inside.

[dp]

On my T/C the rectifier regulator is built onto the back of the alternator pics below. Is yours definitely not the same? If not, It might be worth trying to get hold of one of these types. Or if the regulator appears to be missing from the back, see if you can get the correct one.

Then the wiring would go, in the most general terms, like this:
Leave old voltage regulator out of the equation

Thick starter motor wire from battery + to Fiat solonoid.
Add a an earth strap from engine to body as engine could easily be insulated from earth otherwise
Existing thin wire from speedo red light (should be brown-yellow) to spade connector on alternator.

Thick ammeter wire from battery + to alternator stud connection top right by my thumb.

Thick alternator wire from alternator stud connection -> fuse for always connected circuits.
Thick alternator wire from this point -> ignition switch to power switched circuits.
Thick alternator wire from this point on ignition switch -> light switch (Ie not controlled by ignition switch, but tapping off from that point)

Wire from starter key (starter position) to Fiat starter solonoid

Maybe put a fuse in the lighting circuit. I used an aftermarket fusebox with more fuses so that I don't have any inline fuses for radio or other extras; all the fuses are then in one place.

Have a look at Badfelafel's (dynamo) diagram here
http://www.mmoc.org.uk/viewtopic.php?t=28295

as it makes the wiring a lot easier to understand. Any more questions, just ask.





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[Trav55]

I picked up a Fiat alternator with an internal regulator so I think I have my wiring issues sorted out.

Thanks for all the help.