[Motor Daddy]

The oil pump shaft is slotted, like a flat tip screw. The distributor gear must seat properly into the oil pump shaft. You can use a long flat tip screwdriver to turn the oil pump shaft if the distributor doesn't seat properly when the rotor is pointing to the #1 wire. You can also get the rotor close and rotate the distributor, or you can just change the wires on the cap. Just make sure there is enough room to rotate the distributor enough to set the timing.