Most of the time my turbo diesel 90 runs fine, but some days the battery-not-charging light will flicker for a while, and eventually come full on, at which point the engine dies, sometimes just back to idle, sometimes stopping completely. Wait a few seconds and we're back in business.
The charge light is not a result of the engine dying - it happens just before, so appears to indicate a cause rather than an effect. The alternator may be a bit on the dodgy side as charging is perhaps not as good as it could be, but I can still start on these cold mornings without using a charger.
Surely if the alternator failed then the fuel shutoff valve (the only piece of vital elecrics on the td as far as I know) would still run off the battery?
Any ideas?