Another 1987 300TD "No Start" Thread

[sfsegui]

1987 wagon, changed prefilter 3 days ago when I changed oil. Next morning, wouldn't start, just turn over, but not catch. That afternoon, I cracked lines on top of injection pump and cranked and cranked and cranked to try and bleed lines. I figured I had somehow got air in lines changing prefilter although this had never happened before. I finally got it started after about 30 min. My driveway is on an incline so I parked it with nose downhill instead of usually uphill. Next morning car started right up as it usually does. Drove it all day. Parked last night with nose downhill. Got in car about an hour ago, fired up and drove to Walmart. I am now sitting in car in walmart parking lot because it won't start. Half tank of fuel, cracked lines again, opened fuel door (no gush of air), no little bubbles in pre filter. I'm stumped. Going to keep at it till starts or I have to call AAA. Any thoughts.