Software developer notes

On the third day of struggling, I finally managed to replace the drive belts myself (including the timing belt). Photos will be below, but for now I'll briefly describe the difficulties I had.

Firstly, due to inexperience, I didn't order new bolts for the pulleys; IMHO, always get them, it's safer with new ones. (I'll replace the bolts when I change the crankshaft seal). There was a rusted crankshaft pulley; it took me two days to loosen it. In the end, I managed to remove it using a crowbar (bracing it against the oil pan and prying it off) – in short, I don't recommend doing it that way. I don't know how I'll loosen it next time if it's seized. Maybe someone can share advice? A universal puller didn't help. By the way, keep in mind that you can chip the edges of the pulley this way (I'm talking about using the crowbar). Plus, there's a small nuance to putting the timing belt on – namely, tension it from the bottom up, and most importantly! Keep the right side of the belt taut afterwards. Otherwise, the timing marks will constantly shift when you turn the crankshaft! I only figured this out on the third try) I kept wondering why the marks didn't align after turning it. I bought a new tension spring. The drive and tensioner pulleys are original. The timing belt is Gates. The alternator belt is Contitech, the power steering belt is original. The AC belt is also Contitech, I think. By the way, a question for the experts. My timing belt cover wasn't bolted on from the bottom. As a result, it was damaged, and I replaced it with a new one. I don't see any signs of rubbing. Plus, the oil pan is seeping a bit; everything is slightly oily inside. The question is, is this seepage from the crankshaft, or could it just have been thrown off from the pan? I've driven 3,000 km with the belt and haven't really cleaned inside. Now I'm thinking of changing the oil pan gasket and also changing the seal, because I'm a bit worried about the belt. UPD: I'll be changing the crankshaft seal soon, and I'll show how things have changed under the timing belt cover. I suspect the crankshaft seal isn't the cause (but I'll change it just in case).