Once again, thank you very much for your time and your attention regarding my issue.
Here it is a video with a start after a night...by the night were aroung 5'C degrees by that time. On this video you can notice the followings:
- engine cranks fast enough
- it needed 2 hard key spins ( and that was a good-ish start... at -10 C degrees it was needed 3 or 4 key spins to start and if I slightly press the acceleration, the engine tend to die. Once at -20 degrees, it really died).
- the colour of the smoke. I've just talked with an mechanic and he said that is unburned diesel. If it was oil in the burn chamber, would have been
blue smoke, but not white-grey.
- the small RPM deviations at the begin... you can even hear that the engine runs not that smooth after what is starts in the first minutes by winter, and seconds by sprind
Sadly, cylinder head wasn't removed becuase of the money needed and also because no one know certainly what could it be, so for my wallet is not that nice to pay out around 200£ on a guess. I alreay spend enough on others guesses.
Now that the temperature has raised it's starts at the first key, with 2-3 engine spins, around 20 seconds of smoke, and an nonlinear accelaration in the first one minute of runing.
Few more remarks: I always used Total 5W40, and at 10.000km, around 1 liter is "eat", I always have in trunk one liter and do the level after 1-2000 km.
At the replacing parts, yes , these are all:
Glow plugs relay
Fuel injection pump - also from second hand, i bought it from UK
a friend brought it to me from there because it was cheaper
Coolant temperature sensor
3 injectors from second hand
Another issue that came up, is that the oil temp on the hot days, it's around 130'C degrees at 110km/h. I don't want to know where could it go at 140km/h on 35'C degrees days in June/July. - could it be the oil temp sensor broken? I mention that the coolant it's always 90'C..
Due to my bad English, I don't know if I explained all correctly, but I think that video summarize a good part of the problem.
Once again, thank you very much for your support.