Huhu, I would like to apologize for my ignorance, so it’s about the following, I have to buy a C20XE, but many of them I find, where the valves are crooked (seller states that the timing belt jumped down at about 1500 rpm because it was too loose) And with another it means that the crankshaft wheel has overturned and thereby the valves are crooked? Can anyone say if that can be? So I haven’t yet jumped down the timing belt or So, are the described consequences suitable for the causes? What does changing the valves cost at a C20XE? Where can you do something like that? Change your head? Does not have to be sanded there? Costs? Where? Should one have ‘tuning’ measures taken? Which ones? Thanks already :O