alternator and battery: good news!
The last time I took Sparky out for a spin, he'd been sitting for a few months, and for a couple of them I had forgotten to disconnect the battery... so I had to jump-start the car from a booster battery. On the drive, which was maybe about ten minutes long, I noticed the volt gauge hovering just below 13. I started to doubt the alternator's efficacy.
Tonight I tempted fate: I went for a longer drive, and although I still had to use the booster battery to start the first time, the alternator seemed to be working just fine -- by the end of the drive the volt gauge was reading just above 13, which is normal for my car. After a couple of hours, I turned the key again and it started on the first try, and the volt gauge again read normal, so evidently my alternator and battery are both fine -- it's just that the last time I drove the car, there wasn't enough time for the alternator to charge the battery to where it could sit for two weeks and start up again.
(I hedged my bet, though -- I kept the booster battery in the car with me!)
I intend to drive the car to and from work tomorrow (lack of air conditioning be damned!) and keep an eye on the volt gauge. Looks like I may get more than two years out of Houston's alternator after all. :)
Farrar