Another no-start situation, 2.0 d-jet, Fixed! Dirty trigger points! Options

[arne]

Car is ‘73 2.0 with stock d-jet. Has been running fine, just passed a PPI last Thursday. Late yesterday afternoon I started it to move it. Started fine, ran normally for 15-20 seconds, then quit suddenly. No sputter, just quit as if the ignition was switched off. Since then it will crank over normally, but no fire. Occasionally a very weak cough, but generally not even that.

I immediately checked for spark, and that is good all the way to the plugs. So it is fuel related.

I’ve got fuel pressure, the pump runs it’s brief priming bit when the ignition is switched on, and appears to run while the engine is cranking.

The sudden nature of the failure leads me to think it is electrical, not fuel supply as such. Also doesn’t sound like trigger points, if I understand those right it seems unlikely that both sides would fail simultaneously.

I’m leaning toward a bad wire or connector of some sort, or possibly a D-jet component that has failed electrically.

Any suggestions on likely causes are welcome!

[IronHillRestorations]

One of my stock questions on FI trouble is trigger points.

[arne]

One of my stock questions on FI trouble is trigger points.

And the trigger points were the issue. It runs again. (IMG:style_emoticons/default/piratenanner.gif)

After the last round, I re-checked all the connectors, including the batch of grounds. All looked good. So I pulled the distributor to check the trigger points. They looked OK, the blocks weren't badly worn, nor had they collapsed or anything like that.

But when I checked with the meter, one side had a lot of resistance, the other was pretty much zero ohms. So I cleaned both sets of points and put it back together.

With the cleaned trigger points, it fired right up. (IMG:style_emoticons/default/cheer.gif)