valve chain. can't place it properly on the stars. the chain does not hit one tooth, always at the same place. What might be the problem?
Your description is too long and perhaps people would respond better if they didn't have to wade through all this suffocating detail?
Maybe you could write that in Russian as he is clearly trying his best in English.....save the funny feck comments for native speakers rather than take the piss out of someone's first post trying his best.