I guess I'm not clear on what happened here. Sounds like you finally got the crank bolt off...why aren't you putting the 185mm on? If its leaking oil, then I'm guesing you jacked up the seal. I would think you'd just reaplec the seal (sounds like it'll need done anyway) and then install the 185 pulley...guess I'm not sure if I'm missing something here. Can we see those pics you mentioned?