How do you install your distributor if you did NOT mark the original on a 1993 2L automatic?

Find cylinder # 1. Remove that spark plug. With a socket wrench on the harmonic balancer/crankshaft nut, slowly turn the engine until TWO (2) conditions occur simultaneously: 1) the timing mark is on TDC and, 2) #1 piston is at the top of its travel. Then rotate the distributor shaft to set the rotor to line up with the #1 terminal in the distributor cap, plus about 2 teeth counterclockwise. Then insert the distributor "jiggling" it to engage the teeth, until it fully seats. As the gears mesh, the rotor should rotate slightly so that when fully seated, the rotor will be centered below the #1 tower on the cap. If rotor is off slightly, make note of how far off it is, and pull distributor assembly just far enough out to disingage the teeth. Then rotate the shaft just the amount to match the amount it was off on the first try. Reseat the assembly and again check for proper position. Until you get the hang of it, it may take several attempts, but be patient, as you will get better at determining how much pre-rotation, and in which direction. Good luck. j3h.