Ok, so I went for a beautiful hike in the Pasadena hills and came back to my 1977 240d and it won't start so here I sit at the side of the road..( posting this from my phone)
Anyhow, it has power, cranks fine, just no signs of fuel burning, no stutters, just cranking.
I was parked uphill so I neutraled a crazy back flip downhill, and am now facing downhill. I have fuel, I put my 5 gal emergency fuelfrom trunk in too...
Primary fuel filter is passing a gush of fuel, so not clogged, secondary filter spits fuel from the top bolt when loosened so I assume not clogged, I loosened the injector lines at the injectors and all 4 spit fuel when cranking... So I assume this means fuel is getting to the injectors, and thus the IP is working... And there are no fuel clogs ..
So why no start???
But, I am not getting and glowplug indicator (which i usually do)when turning the key... But the block feels warm and Ive been cranking a lot formthe past few hours and it seems to have gotten warmer (the block by the GPs)
Luckily I have some tools with me ... Tested voltage when key turned to GP position and get 12v to ground before the flat fuse and get 12v to ground after the fuse. I get 0-1kohm resistance along the GP chain and get an unbroken circuit from the last GP to ground so it seems tue GP circuit is on when turning the keys... But I guess I don't know If the GP are actually glowing... Im in Los angeles so it was hot today and not that cold now and like I said the block feels warm around the GPs....
What else should I try or look for?? Why won't my buddy start??

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1981 240D ... 265k
1977 240D ... 265k
1977 240D ... 250k