Is there a resistance check that can be done on the distributor itself? I have a 78 450sl with a no spark condition aswell! I've done quite a bit of reading and thru some tests I feel I've determined the distributor has failed. But I want to confirm it, just cant find a "test" for it. (I dont have a way to monitor dwell). I have battery voltage to ignition coil with key on, 9v while cranking (which means the ignition switch, ballast resistors and everything up to the ignition coil is good) resistance checks on the coil itself check out (.4 ohm and 10.5 kohm, within spec on both), green wire to dist. is brand new, aswell as cap/rotor/plugs/wires, tested terminals 4 and 5 for voltage at diag port (0v like there should be, meaning switchgear/ignition box is good). Which leaves the distributor..... thoughts?

I can provide more detail on what tests were run to determine all of my findings, but its everything that can be found thru google/prodemand(mitchell)

Any and all help is much appreciated!!