Just wanted to post how this turned out in case someone else is trying to solve the same problem.
The car started stumbling a little when warm. Within about a dozen trips, it was barely running after a few minutes and finally would not start. I checked a few other things and then decided to replace the cap and rotor since I already had new ones. Had some difficulty getting the cap off (see
http://www.peachparts.com/Wikka/M103TimingCoverReseal for tip that worked for me) and got a new distributor cap gasket on advice from this forum.
Long story short, put the new cap, rotor and gasket on this morning and she fired right up! Once again I have to say what a great asset this forum is. Don't know how I could keep the Uberwagon running w/o it.
Thanks,
BoB
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