Lucas Stator Identification

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Lucas Stator Identification

Postby Mick D » Mon Jan 18, 2021 4:50 pm

Hi

I'm trying to identify the part number of a Lucas alternator stator - there's nothing physically on the assembly :(

It's a three wire potted assembly with 'LUCAS' impressed into the potting, it's ID is 76mm and OD 127mm and has 19 laminations.

Any pointers?

Regards Mick

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Re: Lucas Stator Identification

Postby Rob Harknett » Mon Jan 18, 2021 5:44 pm

http://archives.jampot.dk/technical/Ele ... C_1959.pdf
Would one of these of the correct year for your bike help ?

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Re: Lucas Stator Identification

Postby Mick D » Mon Jan 18, 2021 5:53 pm

Thanks Rob

But I know what I should have, (47162A), looking to identify what I actually have ;)

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Re: Lucas Stator Identification

Postby dave16mct » Mon Jan 18, 2021 7:27 pm

If there are no numbers on the stator I don't think you can positively I.D it as they all have the same colours on the wires. You can tell if it's 3 phase by counting the pole pieces - 6 for single phase, 9 for 3 phase. You can test the output with a multimeter when the engine's running which will tell you if its low or high output. Which bike is it for?
Dave.

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Re: Lucas Stator Identification

Postby Mick D » Tue Jan 19, 2021 7:44 am

Thanks Dave

That's narrowed it down a bit more, I have six poles.

Reading James Smith and the Lucas documentation in the archive it seems that power output was governed by the number of laminations on the rotor and stator and whilst I can find info on the number of laminations of the later assemblies, (none of which match mine), I can't find that detail for the RM13, 14 and 15.

It's for a G15 CSR I bought as an abandoned project - I'm trying to ensure I have the correct alternator assembly which is proving fun as I appear to have a later design 74mm rotor, (straight sides :? ), so I either need one with one side recessed or to re-jig the retaining hardware to suit.

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Re: Lucas Stator Identification

Postby JEAN-NOEL » Tue Jan 19, 2021 10:29 am

On my 64 G12CSR (12 V) I had an RM 19, 74 mm, 6 coils = 2 + 4, number 47 162 A 11 63. I think it was the same on the G15. I swaped it for a Lucas 3 phases, 175 w, and an A Reg 3.

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