Friends:
I've got a little puzzler for you all. Here are the facts:
When my MGB starts in cold weather, the red dash indicator (alternator)
comes on, and stays on (nearly as I can tell) until the choke cuts out.
It waxes and wanes in intensity, depending (absurdly enough) on how hard
I'm punching the throttle ... more punch, less glow; less punch, more
glow. (!!!) It's also worse at night, when I have the lights on, though
it does happen during the day. This only happens when the temp is
below about 35F, and, oddly enough, totally goes away when the car has
warmed up. It doesn't otherwise seem to affect performance (though the
car backfires like bloody hell when it's cold).
Here's the car (for those of you not familiar with it):
75 MGB, 79 motor. Headers, free-flow exhaust, Weber downdraught 32/36
carb with electric choke. Slightly upgraded headlamps (sealed haologen)
and no emissions controls left (except the carbon cannister). On the
79 motor, I've got a 74 water pump and plastic fan, the original 75
radiator. 72 25D distributor, vaccuum advance sealed off, fresh points
and tuneup, correct N9YC plugs. Don't blame me for this Frankenstein
setup ... except for the carb, this is how I got the car. :) Alternator
is a rebuilt Lucas unit, installed last year. Battery is a fresh Series
26 Interstate, new cables, in a battery box.
Any thoughts?
TIA
Corey
75 MGB 'Rags'
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