theres 1 notch on the front of the pully marks TDC there is an arrow for every piece pointing to TDC. If your getting gas all over the plugs and no explosion you have NO SPARK ! either way you should get some sort of spark and gas should ignit ! if you have that much you have ignition issues ! check your coil and ignitor im telling you if its just cranking and cranking and dumping gas you have a problem with your Dizzy, 100$ on ignitor ! SOOOO common its pathetic thats how i got my 2k$ civic oldlady couldnt get itto start traded it i put a used ignitor in it bam cranked up new car for me !