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No gauges, no charging - not cold weather related 200 1990

I have an intermittent 'no charging' problem that I'm beginning to think is related to this - although it doesn't seem to be weather related. I've changed the alternator, brushes, checked the connections, grounds etc.

Intermittently, and its seems to be after driving the car for about 1/2hr the alternator appears to stop charging. All of the cluster warning lights come on dimly including the battery warning light. When this occurs the alternator stops charging. Sometimes just turning of the car and restarting fixes is (although not always).

I did end up removing my instrument cluster several times about 3 months ago in order to fix my odometer as well as clock (capacitors) and ended up ultimately installing a tach. Ended up taking the cluster in and out many times cos I couldn't get the new odometer gear to work consistently (in the end due to a microscopic piece of plastic in the gears). So I'm wondering if all of this somehow upset some of the connections required for the alternator exciter current. I also replaced one of the warning lamps - not sure if it was the battery one.

I also fiddled with the L connector while the engine was running and it seemed to have an effect. Only for the problem to reappear. The problem is so intermittent as to be very annoying and hard to diagnose!

So would it be good for me to perhaps re-solder all of the connections in the pictures? Also may try swapping some of the warming bulbs around since I can't help feel that the fact I replaced one may be more than a coincidence. Other ideas to narrow it down?

Other than this the car is running better than ever before!






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