I just purchased a remarkably clean and very well maintained 1975 164e today to park alongside my 57 444K. The car has sat for several years. Here's the scoop. It will start and idle and idle for hours. It will make about 1.6 mph and it surges on the road. I can hear the fuel pump surge as well, even at an idle. I pulled the primary fuel line off the fuel rail and when the key is turned on, there is a 2 second (?) burst of fuel and then nothing. Turning the key off and on repeatedly will let the motor, when started, run up to full rpm with good throttle control, but only for perhaps 10 seconds. It is clearly starving for fuel. I can't find a thing in the archives that addresses anything like this. The tank had been drained and there is a new fuel filter just in front of the fuel pump. I am reasonably sure it has the ability to get fuel, it is the constant cycling of the pump that is giving me grief. What am I looking for?

Many thanks,

Leonard