G3WO Dip Switch / Blank

[stevetemple]

Can anybody tell me which dip switch I should be using on my 1940 G3WO? I assume it should be the round body type with the strap over the top, should it have a round or diamond shaped lever? Also, does anyone know if the clock blanking plate on the tank instrument panel is still available anywhere?
Steve

[Andy.S]

Here's the link to original parts list no pictures unfortunately which isn't very helpful but the correct parts would be painted or dull plated not chromed i would have presumed , perhaps with the part numbers listed you can find pictures of the items you need.
It may help track down the correct items if still available.

http://archives.jampot.dk/book/Spares_l ... _C5247.pdf

[Rob Harknett]

May I suggest you first read the parts list introduction. You will read there are 8 or more different finishes. All part numbers have a prefix. You will soon get to the table prefix letters and what they refer to. For a few years part numbers gave for example e = it fits on the engine. last 2 digits of a year = Year of introduction. G12 smallest model it fitted, prewar G12 was a 250 ohv Rob H

[Rob Harknett]

The last illustrated prewar parts list was 1935. Some one drew some very nice drawings of OHV top end parts I think were for 1938 onwards. First year square timing covers became rounded

[SPRIDDLER]

The last illustrated prewar parts list was 1935. Some one drew some very nice drawings of OHV top end parts I think were for 1938 onwards. First year square timing covers became rounded

There's a drawing of the top end with OHV valve ass'y here:

http://archives.jampot.dk/editorial/War ... h_1940.pdf


If you haven't seen the Lucas illustrated catalogue for 1936 - 1957 there are dip switches on page J3 here:

http://archives.jampot.dk/technical/Ele ... 6-1957.pdf

[stevetemple]

That is an amazing catalogue, I found the dip switch eventually on page 182. So it is one of the round bodied switches with the diamond shaped lever. Thanks very much.
Does anyone know where I might get the blanking plate that replaced the clock on the fuel tank panel? Is it still available?
Steve.

[Duncan]

Does anyone know where I might get the blanking plate that replaced the clock on the fuel tank panel? Is it still available?

They do turn up every so often at jumbles or on eBay, a number of different makes will have used them, Draganfly are probably out of stock of the ones with writing https://draganfly.co.uk/shop/240162/8-d ... /#5251-31B but appear to have plain ones https://draganfly.co.uk/shop/69486/blan ... t-writing/ , or if you fancy DIY: http://archives.jampot.dk/technical/Do- ... _Plate.jpg

[jackstringer]

If you are referring to this

Screenshot 2023-03-04 at 09-28-56 untitled - Lucas___Full_Motorcycle_Accessory_Catalogue_1936-1957.pdf.png

then I can confirm I have the same one on a 1961 Dutch Army Matchless. It's chromed, just with a few layers of paint on it.

[stevetemple]

Thanks Duncan, I will keep Draganfly in mind if I can't find one with writing. I am going to the jumble at Shepton Mallet later in the month so I will try there. Were they originally brass?

Hi Jack, I believe the correct one for 1940 was 31482 without the horn button and with the strap that goes over the top. Looking at the parts book it definitely had a seperate horn button. Same style lever though. It is on page 182 of the catalogue.