Changing the Fuel Pump Well, you learn something new everyday. For 40 - 50 years I've known that while changing the fuel pump you want the eccentric that actuates the pump to be in the top or "rest" position. That way it won't be applying pressure to the pump arm while you are trying to bolt it on. I found it difficult to use a mirror, a screwdriver, or any other method to determine the location of the eccentric so I usually just fought the pressure and "horsed" the pump into place. Today (7/14/14) I discovered that there is an easy way to get the eccentric in the proper location. Just pull the distributor cap and jog the engine until the rotor points to cylinder #1 and the eccentric will be out of the way. So simple but I never thought of it. Thanks to Scott McGilvray of the Dallas Big "D" club.