NEWS FLASH - December 2013
We are now selling magneto bearings, insulators, oil seals and armature shims from our on-line shop.

Brightspark Magnetos

NEW ... Take a look at some of the equipment we use in our workshop for magneto servicing and overhauls.

 

 

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Library

Lucas workshop instructions - magnetos
Lucas workshop instructions - other stuff
Lucas parts lists
Lucas ATD specifications
BTH instructions & parts lists
M-L Booklets
Magnéto France documentation
Robert Bosch Documentation
American Bosch workshop instructions
Patents
Books and learnèd papers

Lucas ATD specifications

(up to 1957)

ATD Part No. No.
of teeth
Magneto Dir'n
(viewed
at drive
end)
Advance range
(at the
magneto)
Spring
Part No.
Motorcycle
47502A/B 50 K2F Anti-clock 15° - 18° 498157/S Triumph 350cc 3T De Luxe; 500cc 5TAC Speed Twin, Tiger 100 & TR5 Trophy; 650cc Tiger 110 & 6TAC Thunderbird
47503A/E 44 11° - 13° Ariel 650cc FH Huntmaster
BSA 500cc A7; 650cc A10, Golden Flash & Road Rocket
47504A/E 48 N1 16° - 18° Panther 600cc '100'
47505A/D KVF Clock Vincent HRD 1000cc Rapide & Black Shadow; 500cc Comet & Meteor
47506A 59 K2F Anti-clock Ariel 500cc 'KH', 'KHA', Red Hunter, Hunter Twin, Field Master & 'KG' De Luxe
47507A/B 50 K1F Panther 350cc '75'
47508A/D 18 K2F 11° - 13° Norton 500cc Dominator 7, '77' & Dominator 88; 600cc Dominator 99
47522A 92 K1F 16½° - 18½° Velocette 350cc MAC; 500cc MSS (1952-54)
47541A/E 17 SR1 11° - 13° 416060/S AJS / Matchless 500cc Model 18, Model 18S & 'G80'
47544A/B 498157/S AJS / Matchless 350cc Model 16M, Model 16MS & 'G3'
47545A/B 92 K1F Velocette 350cc MAC; 500cc MSS (1955- )
47553A/B 19 SR2 Clock Enfield 700cc Super Meteor
47556A/B 40 SR1 Anti-clock 350cc Bullet; 500cc Bullet
47576A 92 K1F 407256/S Velocette 350cc Viper; 500cc Venom
The Lucas ATD is held together by a collar at the rear which is an interference fit on the hollow shaft of the ATD. If you need to disassemble the ATD, you will probably need a press and some ingenuity to support the ATD while you press the shaft out. Here are a couple of photos of a disassembled Lucas ATD:-

If you have any information we could add to the table above, please do email us at info@brightsparkmagnetos.com

 

Home EasyCap™ condensers Magneto parts Magneto services Magnetos for sale Online shop Conden­sectomy Magneto maint­enance Library Down­loads FAQs Gallery Work­shop Inform­ations en français Testi­monials News Links Contact

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