Ok, so i'm currently putting an LS/Vtec engine together and boosting it, but my question is, I have never had to change an Oil Pump, I am putting a Gsr Oil Pump in the motor right now. I have gotten everything off *bolts, pulley and such. But I don't know how to get the piece of the crank that the timing belt spins on off of the motor to get the oil pump to slide off? Can anyone explain how to get that off so that I can change my oil pump out? Any info would be greatly appreciated, thank you in advanced.