hey car wouldnt start this mornign so i thought maybe it was the distibutor cap and the rotor but for some reason i cant get that rotor off ive taken the screw out. but it wotn budge for anything. i really dont know what to do. i just hope this is the reason that the car wont start tho. any suggestions on how to get this thing off? and if this sint the reason any of you know of any reasons it might now be firing up?