28-07-2022, 10:18 PM
I note on your other thread 'Ignition Light on All the Time', that you discovered that the cutout points had not opened. This may have destroyed the residual magnetism in the dynamo field windings core.
Assuming that your Ruby is Positive earth, attaching a lead to the dynamo body from the positive side and 'flashing' the F terminal to a lead from the negative side of the battery may restore it back to working order.
If this doesn't work, I suggest that you have the dynamo overhauled by someone who knows what they are doing. I note that there has been some discussion within these annals about dynamators and their reliability or lack thereof. Personally I would not be tempted down that route. My own car is used regularly and, during last winter, was used as my daily driver for some six weeks whilst the modern was undergoing repair. The dynamo seemed to cope well despite a lot of night time work and I never had a flat battery during that time.
Assuming that your Ruby is Positive earth, attaching a lead to the dynamo body from the positive side and 'flashing' the F terminal to a lead from the negative side of the battery may restore it back to working order.
If this doesn't work, I suggest that you have the dynamo overhauled by someone who knows what they are doing. I note that there has been some discussion within these annals about dynamators and their reliability or lack thereof. Personally I would not be tempted down that route. My own car is used regularly and, during last winter, was used as my daily driver for some six weeks whilst the modern was undergoing repair. The dynamo seemed to cope well despite a lot of night time work and I never had a flat battery during that time.