Thanks for the response. My condolences.
Maybe You could give a link or something to that discussion. I think it could help.

I am afraid to take it apart before I don't understand what I am doing.
We had timing chain broken and did almost all the work by ourselves, but we had info and my father also was pretty skilled mechanic. So it went well.
As this is not common problem, I really don't know what to do.

Any information would help.