I dunno how much miles there are on the car, but sometimes there's a great inprovement when you rotate the dieselpump futher before the point it should be on.
Let's say the normale setting is 12 degrees before top dead center, make it like 13 degrees before top dead centre.
I dunno if 12 degrees is the setting for the uno diesel, that's just an example.
On worn out diesels a earlyer diesel injection will result in some power gain, becouse it compensates for the loss of compression in the cilinders.
If you feel and think the power output is normal, and you get a good gallon to the mile ratio don't mess abouth with it tho.
For example my old campervan (a fiat ducato 2.5 liter diesel based van) has done 215000 Km now.
The maximum out put (when new) is 75 Bhp with an total weight of the car being nearly 3000 Kg that is not that much to say the least.
Max speed is around 95 to 100 Km/h.
I am gonna set the dieselpump to a earlyer injection, by rotaing it futher away from the top dead center.
That would give me some better fuel consumption ratio, and will give it a little boost wich I can use very much with weights like these, and just that few bhp in the engine.