Do you have the underbody panel(s) in place? If not, you could be shorting the alternator.

Otherwise, all the ignition wiring is up by the coil, front left side. Look for wire damage, on those cars the wiring should last forever, unlike the later ones with "self composting" boidegradable insulation.

I would also check behind the battery, since that is where all the relays are (fuel pump, OVP in paricular). A peek at the fuel pump wiring isn't out of order, either! There is supposed to be a splash pan back there, and if damaged you may be scooping up water on the pumps.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!