International Lancia Forums

Hi my programmable 123 won’t connect to my laptop I suspect a dry joint on the usb socket my question is in order to fix this I need to remove the tapered drift pin shown in the picture but which way does it come out I’m thinking it’s the direction indicated with the arrow

Hi Jimbo1, did you manage to sort out your distributer issue in the end ? I've been eying off the 123, but wonder if the USB or BT is over the top of general use. Any advice or comments from your experience ? Cheers, Brad

The Fulvia engine has a short engine and thus a short crankshaft. It has only 3 main bearings while a 4 in line engine like the Lampredi engine has 5 main bearings.

The narrow V4 Fulvia crankshaft flexes more than any 4 in line crankshaft. The flexing causes vibration and metal fatigue. The earlier the combustion is finished the higher the vibration. Timing on Fulvia engines is critical. Lancia built narrow V4 engines since 1920. You can rest assured that the balance between long life and high power is optimal with the standard ignition setting. For the 1300's the static advance is 8 degree.

The HF crankshafts are hardened to 1 mm or so. They flex less and you can advance for static ignition to 10 degree.

Stick with the standard curves. The trade off between higher power and long life goes BAD very quickly.

When we rebuild a Fulvia engine we can harden the crankshaft up to 4 to 5 mm. Even then we leave static advance at 8 degrees. The lack of flexing saves a lot of power and endurance. Super fast and super reliable engine.

My advice: stick with the standard Lancia Curves.

slyg wrote: ↑29 Jan 2026, 20:21 Hi Jimbo1, did you manage to sort out your distributer issue in the end ? I've been eying off the 123, but wonder if the USB or BT is over the top of general use. Any advice or comments from your experience ? Cheers, Brad

Yes it was a problem with the pcb I contacted 123 ignition and they sent a new board it was easer than sending mine back (thank brexit for that ) put it all together now all works perfectly, if you have an engine that is tuned I would recommend it also bear in mind no points or condenser to fail,and she starts every time in the cold, and wet weather