[Mark93077]

I have a 1977 930 that I have been working to get back on the road with great success other than a problem restarting after the warmed up car sits for more than 10 minutes. The car runs absolutely perfectly after pulling and cleaning the gas tank, replacing tank filter/drain plug, both pumps, the accumulator, the filter, and making the wur adjustable so that pressures (cold, warm, and 10/20 minutes post shutdown) are all in spec. I have left the pressure gauge installed so I can monitor while running and after shutdown. When shutdown it will restart immediately in the zero to 5min range with no issue but not when left for 10-30min. In the 10-30 min period it will start with starter fluid with a little bit of effort and then runs great and restarts as long as it does not sit for more than 10min. Looking for what I could test or try next. Is there some component that would cause this behavior if cis pressures all in spec and clearly it’s getting spark.