He did take 3 litres of oil out, for the life of me I don't know how that got there, can only blame the original guy (mechanic) for that.
Anyway the new mechanic checked the "crank sensor" (wasn't familier with that until he described it) and cleaned it
Checked the compresions on them all (OK), checked it with the analizer and let me take it away.
It did drive well like before all this hassle, so hopefully it's ok now, I might upgrade it when I can afford to.
Thanks again for your input.