Hello all, I have finally found some time to work on the car. I have done the following:
Replaced the return fuel check valve at the injection pump
Rebuilt the lift pump
Cleaned out the fuel tank vent valve-it is clear and working as advertised
Replaced all rubber fuel lines, up front and at the tank
Isolated the Greasecar system, it is not currently plumbed into the fuel system
replaced both fuel filters and associated o-rings

The car still fails to start when the engine is hot!?!
Am I in the market for an injection pump rebuild? Could it be the injectors? I have replaced the seal washers between the injectors and the head but have noticed some fuel wetness where the injector halves come together. Any help from the forum would be much appreciated. Thanks.

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1987 300TDT ~264,000 miles