have a 87 sea ray with 3.0 mercruiser. when i put a timing light on it i noticed that it looked about a tooth of on the dist. the timing marks wouldent line up by a long shot.So thinking i new what i was doing i pulled the dist. now i cant get it stapped back right. im setting up tdc and lineing my rotor up with #1 on the cap.and i think this is the one in the front of the motor. then stapping it in. it runs fine but not any closer to the timing marks. Im kinda confused i know the rotor has to be lined up with #1 but how do i know where the dist is supposed to go. hope this isent to confusing. the reason i did it to began with is it was diesling and hesitating at accel so i figured timing.