The Eurocharge pulley failing is normal at this point. Its not a matter of if but when. You need to get a scatter-shield. If you had one, you wouldn't have shredded your coolant line or damaged the oil cooler. When my eurcocharged 65 pulley failled it broke just like that. The only difference is, I was actually removing the pulley for some reason and when I went to pull it off it was split in half. I put my stock pulley back on and went the 178 crank pulley route.