I can get the marks on the belt to line up with the marks on all 4 cam gears and the crank gear but only the crank gear is lined up with the mark on the oil pump. All the cam gears seem to be 1 tooth off. Is that normal? If not, any suggestions on getting them lined up? I am at TDC on #1 and I started the belt from the crank and up the drivers side cams. Thanks in advance.