In a message dated 08/24/2000 5:57:15 PM Eastern Daylight Time,
mrazor@mis.net writes:
<< It is a 78 MGB with a Zenith carb. New plugs, plug wires, new
battery, lots of electrical faults. That is what is acts like, a
short in the system somewhere, except for the rough idle. May have
found part of the problem with the rough idle, the air filter is old,
I mean old and clogged. Pulled it out and the car idles much better,
going to have to get new one. Wonder how much the voltage regulator
has to do with this one problem. >>
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I guess that a faulty regulator could contribute to the problem, but the coil
should be able to overcome some low voltage situations that it would cause.
More frequently when a voltage reg. is bad, the battery won't charge as the
first symptom.
If your car is fitted with an electronic ignition, I would consider that it
may be the cause of the intermittent running.
I agree with the others, clean every contact in the ignition system you can
find. The green corrosion is a very effective insulator. And that is the
cheapest thing to try. If the air filter was as bad as you say, there are
probably bad connections to clean.
My '77 Midget would start one day, and not the next. There was no spark at
the plugs on the bad days. I cleaned everything and it got a little better.
Then I installed a new Pertronix Ignitor (Thanks Kevin) and it starts every
time.
Allen Hefner
Philly Region SCCA Rally Steward
'77 Midget
'92 Mitsubishi Expo LRV Sport
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