Hello guys, I'm first time on this forum.
first, sorry, when I'm not good wit the words, but I studied english only in school.
Tipo 1.9 TD engine (what is on the first pictures) is 160.D1.000 or 160.A6.000 code engine (there are little differences between the two). These engines have pre-combustion chambers, like most of the diesel engines from this era. And also have a mechanical injection pump, these are BOSCH VE-R
Filling pressure from the turbo is maximized at 0,8 bar (~11,6psi), at this pressure, the wastegate blows off. This pressure is disponibile soon at ca. 3000-3200rpm.
These engines can used even with biodiesel, but it's better, when not only used with that, rather mixed with normal diesel fuel (70%biodiesel-30%normal diesel)
When somebody have more questions, feel free to ask. I worked former at a diesel service
