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Identify the Dynamo and Terminals
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<blockquote data-quote="poor1" data-source="post: 140453" data-attributes="member: 663"><p>That is all very helpful and I am very grateful. I'm now pretty certain it's a Lucas dynamo, although there are no markings to confirm. Someone has previously scratched the F&D on the end cover (twice) and the left one is the 'F' which coincides with 'vibrac'. Unfortunately I was not able to see much by peering into the end of the dynamo after sliding retaining band out of the way with it being mounted on the bike to positively confirm that 'D' is the one connected to a brush.</p><p>The dynamo is coupled to a Lucas regulator (type 5169 stamped on the cover) so now that I know its a Lucas dynamo I can use any appropriate Lucas wiring diagram to ensure that the connections are correct</p><p>This was all working prior to my rewiring it over a protracted period of time so the dynamo should be ok.</p><p>All the electrics are working as they should and showing a negative discharge on the ammeter without the engine running.. My current position is that the engine started at the first kick after having the cylinder head overhauled and the all the electrics are working and showing a discharge at rest but on starting the engine it is not yet showing a positive charge on the ammeter. It would be nice to know whether the dynamo is generating some voltage and I presume that a multi meter across one of the F or D terminal and earth should indicate that there is.. Can anyone confirm that my thinking is correct on this please and which way to connect the multimeter..</p></blockquote><p></p>
[QUOTE="poor1, post: 140453, member: 663"] That is all very helpful and I am very grateful. I'm now pretty certain it's a Lucas dynamo, although there are no markings to confirm. Someone has previously scratched the F&D on the end cover (twice) and the left one is the 'F' which coincides with 'vibrac'. Unfortunately I was not able to see much by peering into the end of the dynamo after sliding retaining band out of the way with it being mounted on the bike to positively confirm that 'D' is the one connected to a brush. The dynamo is coupled to a Lucas regulator (type 5169 stamped on the cover) so now that I know its a Lucas dynamo I can use any appropriate Lucas wiring diagram to ensure that the connections are correct This was all working prior to my rewiring it over a protracted period of time so the dynamo should be ok. All the electrics are working as they should and showing a negative discharge on the ammeter without the engine running.. My current position is that the engine started at the first kick after having the cylinder head overhauled and the all the electrics are working and showing a discharge at rest but on starting the engine it is not yet showing a positive charge on the ammeter. It would be nice to know whether the dynamo is generating some voltage and I presume that a multi meter across one of the F or D terminal and earth should indicate that there is.. Can anyone confirm that my thinking is correct on this please and which way to connect the multimeter.. [/QUOTE]
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Identify the Dynamo and Terminals
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