[ossiblue]

Couple of questions: First, does the current accumulator (on the car) have a hose connected to the bottom? If so, it's a later version where the bottom hose connects to the fuel return line to the tank and a failed accumulator will leak fuel back into the tank without obvious dripping. I believe the original to the 75 had only two ports (no hose from the bottom) and would account for the different part numbers. (Not an expert on this, so I may be corrected by someone who knows for certain when the accumulator changed.)

Second, you say your fuel pump is fine, but have you checked the residual pressure with a fuel gauge set? The pump may maintain proper pressure/flow but if the check valve is bad it won't hold pressure after shut down and you will have warm start problems.