Two months ago on a long trip, the 244 DL lost power, then died on the highway. Would crank but not run. Mechanic checked the fuel filter and pump - both OK. Then he stuck an allen wrench in the hole on the fuel distributor and adjusted the plate inside, and it was fine. Easy enough.

Fine for another few thousand miles, we once again sputter and die, again will crank but not start. Got out the allen wrench and turned away, but this time it did no good. Finally I turned so far something (probably that plate) came loose - I heard something drop. Now when I stick the allen wrench in, there's nothing to turn.

From what I've read, that plate, which rises as air comes in from below and lets more fuel in, may be stuck, may need adjustment, or may not be centered in the air venturi.

Two questions:

1) Is there any way to isolate the problem at the fuel distributor? (ie., would it work to unhook the fuel line to the distributor, crank the engine and hope fuel comes out, then check to see if fuel is not reaching the injectors, thereby isolating the problem at the distributor?)
2) Assuming it is the fuel distributor, how do I get in there to check out the plate (also heard it described as plunger) to make sure it is centered and not stuck? Is this a job for a not-very-handy guy like me. It may not be worth it to get the Volvo towed and fixed.

Thanks