High-power alternator rotor - Page 2 - Triumph Forum: Triumph Rat Motorcycle Forums
Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

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post #11 of 13 (permalink) Old 11-22-2012, 09:25 AM
Formula Extreme
Main Motorcycle: 1979 T140D Special
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Join Date: Feb 2011
Location: Letchworth Garden City England
Posts: 443
Other Motorcycle: 1978 T140E
I think that it's worth noting that the magnets do weaken with time.
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post #12 of 13 (permalink) Old 11-22-2012, 10:05 AM Thread Starter
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Main Motorcycle: VFR
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Join Date: Apr 2009
Location: Ancaster, UK
Posts: 914
Other Motorcycle: T100S
True. If you read my stator log I did buy a new Wassell so I could compare it against my collection of Lucas rotors to see how they stood-up. One rotor wants chucking in the bin but generally the rest compare quite well despite being 40-50 years older than the Wassell.

Another way of looking at this then is that compared to a new Wassell rotor a new Sparx rotor is more powerful.


'69 T100S being rebuilt - very s-l-o-w-l-y - some say stopped!
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post #13 of 13 (permalink) Old 11-22-2012, 10:25 AM
Main Motorcycle: T140 E
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keep the rotor and tie a dog lead of string to it.

We used to use an old speaker magnet like this to collect dropped screws/bolts on the floor. Used in a pattern like a minesweeper, all sorts of lost bits and bobs are found
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