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Douglas 1915 3 Spd-Gearbox and Clutch

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Lat Fuller

2025-07-20, 02:39:50
I am pretty desperate for a rear cylinder for my veteran Douglas 1917 2 3/4hp "W" model.   I there is anyone who may have one of these that can be re-sleeved or know where I may find one I would be very pleased for the help.  I have a number of engine parts that I can exchange such as matching crankcases, conrods, crankshaft, flywheel etc. Any help appreciated.

Lat Fuller

2025-06-04, 05:57:00
Does anyone have the specifications for the oil inlet valve spring for early 2 3/4 engines - Part number 424.   I have tried to order one from the club spares but apparently Jeff Swan is indisposed at the moment.

skapoor

2025-05-19, 09:23:12
I am looking for a carburettor for veteran Douglas motorcycle engine-13651. Could you please help me with this?

Early 1900’s generators etc

Started by Alan, 01 Apr 2022 at 00:34

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Alan

There was a discussion a while ago re equipment made in Sydney in the early 1900's and especially WW1. This stirred my ageing memory about a unit rescued from a Sydney tip that I briefly owned 30 or so yrs ago. Then Kev came to my mental rescue and sent the attached pics of the actual 1916 generator unit. A query...would the engine have been a special batch order from the UK and Sydney assembled or manufactured in Sydney including the castings ?

Alan

Pics of the actual unit

Hutch

Great Pictures Alan,

Is this the discussion you were referring to?

https://www.douglasmotorcycles.net/index.php?topic=8389.0

I'm erring towards the castings being made at the Randwick works.

Cheers

Hutch

EW-Ron

Quote from: Hutch on 01 Apr 2022 at 06:58
I'm erring towards the castings being made at the Randwick works.

Ditto.

Interesting.
Is there a pic of the actual generator unit ?
It doesn't list a voltage there ?
It seems to be different to the spark generator for radio use of the previous discussion. ?

Of which Marconi were apparently nosing about during/after the war, with a view towards patent infringement.
To which the RAN gave them the silent treatment, it would seem.
There was also a scandal in Parliament about how much the Navy had paid for the whole shebang,
without any official ? approval or valuation ?

May we assume this Kevin still has this unit ?
I enquired of the Powerhouse Museum and the Navy History Unit about these (radio spark) generators,
and while they had some (scant ?) knowledge of them they certainly didn't have any actual generators or blueprints etc.
Certainly an interesting part of early Australian radio history.