05-06-2020, 11:17 PM
Late at night, just thinking aloud
If it is generating on the bench, it should do so on the car.
Unless the battery is connected (via a dodgy cut out) and reversing the field polarity - I am not sure about that.
Are you sure the dynamo is revolving on the car? I suppose it must be, if the distributor is being driven.
So maybe a digital meter problem, which works on the bench but not with a running engine.
So connect a headlamp bulb, or two in series to be reasonably sure of not blowing them, between the F and D terminals coupled together, and earth.
If they light, you have output, whatever the meter says.
Repeat, on the bench.
If light on bench but not on car ... don't know.
If light on neither - dyno is giving enough to power meter reading, but not much else. So is faulty.
Off to sleep it off. Goodnight.
If it is generating on the bench, it should do so on the car.
Unless the battery is connected (via a dodgy cut out) and reversing the field polarity - I am not sure about that.
Are you sure the dynamo is revolving on the car? I suppose it must be, if the distributor is being driven.
So maybe a digital meter problem, which works on the bench but not with a running engine.
So connect a headlamp bulb, or two in series to be reasonably sure of not blowing them, between the F and D terminals coupled together, and earth.
If they light, you have output, whatever the meter says.
Repeat, on the bench.
If light on bench but not on car ... don't know.
If light on neither - dyno is giving enough to power meter reading, but not much else. So is faulty.
Off to sleep it off. Goodnight.