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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Fitting a Lucas E3L dynamo to a model C Rapide
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<blockquote data-quote="greg brillus" data-source="post: 39155" data-attributes="member: 597"><p>When it comes to the difference between the Miller and Lucas genny units, both when in good working condition are fine for normal riding, provided the battery is in a good....charged condition, and not left for six months...then expect the poor old genny to work it's guts out trying to top up the battery as well as run headlights and so on.....this a very common problem on all older machinery if not used regularly. The two main benefits of the Lucas over the Miller are that the Lucas is far more common, and therefor easier to find parts for, and second is the Lucas has a much bigger commutator and brushes....If you run a Miller on the test rig and load it up so it's output is near enough to 8 amps, when looking at the commutator and brushes, they resemble an arc welder....!! If the same test is carried out on the Lucas unit, the results are less spectacular...due to the better load carrying characteristics of the larger comm/brushes. So even though the units are rated at the same output, the Lucas wins because of these better features. If a continually high load is put on these generators, the excess heat generated at the commutator will melt the solder attaching the windings to the comm segments, which will throw the wires out centrifically, and render the genny useless. ......Cheers.....Greg.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 39155, member: 597"] When it comes to the difference between the Miller and Lucas genny units, both when in good working condition are fine for normal riding, provided the battery is in a good....charged condition, and not left for six months...then expect the poor old genny to work it's guts out trying to top up the battery as well as run headlights and so on.....this a very common problem on all older machinery if not used regularly. The two main benefits of the Lucas over the Miller are that the Lucas is far more common, and therefor easier to find parts for, and second is the Lucas has a much bigger commutator and brushes....If you run a Miller on the test rig and load it up so it's output is near enough to 8 amps, when looking at the commutator and brushes, they resemble an arc welder....!! If the same test is carried out on the Lucas unit, the results are less spectacular...due to the better load carrying characteristics of the larger comm/brushes. So even though the units are rated at the same output, the Lucas wins because of these better features. If a continually high load is put on these generators, the excess heat generated at the commutator will melt the solder attaching the windings to the comm segments, which will throw the wires out centrifically, and render the genny useless. ......Cheers.....Greg. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Fitting a Lucas E3L dynamo to a model C Rapide
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