Author Topic: Identify engine on ebay  (Read 832 times)

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Offline Aero

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Identify engine on ebay
« on: 03 Jun 2020 at 10:19 »
Just wondering which model this engine is & what it was likely fitted to?
The seller seems to think its a motorcycle engine but it looks more like an industrial type.

https://www.ebay.co.uk/itm/The-Douglas-Motorbike-Engine/283899658225?












Additional photos added - Dave 4th June 2020
« Last Edit: 04 Jun 2020 at 20:05 by Dave »

Offline graeme

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Re: Identify engine on ebay
« Reply #1 on: 03 Jun 2020 at 12:05 »
It's big and water cooled - I think it's a Williamson engine, made in the Douglas works

Offline eddie

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Re: Identify engine on ebay
« Reply #2 on: 03 Jun 2020 at 13:04 »
As it has 'Douglas' cast into the crankcase, I think it may be from the 1914 Douglas car. Evidently, those engines were based on the 8hp Williamson engine.

  Regards,
                 Eddie.

Offline arturro

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Re: Identify engine on ebay
« Reply #3 on: 03 Jun 2020 at 13:05 »
Yes.  I agree that it is Williamson please look at this link

https://cybermotorcycle.com/euro/wikig/Williamson.html

Best regards Artur

Offline Aero

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Re: Identify engine on ebay
« Reply #4 on: 03 Jun 2020 at 20:18 »
Thankyou for all your answers.
A very interesting engine & considering its over 100 years old it doesn't look too bad

Offline EW-Ron

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Re: Identify engine on ebay
« Reply #5 on: 04 Jun 2020 at 05:23 »

Offline arturro

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Re: Identify engine on ebay
« Reply #6 on: 04 Jun 2020 at 14:44 »
Here is more better look from my previous post

Best regards Artur

Offline graeme

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Re: Identify engine on ebay
« Reply #7 on: 07 Jun 2020 at 06:41 »
Interesting, in those pictures of the air-cooled Williamson you can clearly see The Douglas cast into the crankcase

Offline eddie

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Re: Identify engine on ebay
« Reply #8 on: 07 Jun 2020 at 08:36 »
I am still leaning toward it being a car engine - there is no sprocket on the back of the flywheel - instead, 3 stud holes near the centre on the outside of the flywheel (for an in-line coupling to a gearbox??).

   Regards,
                  Eddie.

Offline Jonathan Hewitt

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Re: Identify engine on ebay
« Reply #9 on: 08 Jun 2020 at 17:49 »
Hi all,
  out of interest what date would this be from ?
Jonathan

Offline cardan

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Re: Identify engine on ebay
« Reply #10 on: 08 Jun 2020 at 22:33 »
Most likely 1912-1914? Some research would be required for a positive date.

The Best Twin has a chapter on the Douglas motor cars, where Jeff Clew talks about prototype cars in late 1912 using the Williamson engine. The final vehicle (for the 1914 season) used the Williamson-style engine but with the gearbox casing cast integrally with the crankcase, so the engine is not from a production car. Maybe prototype car as Eddie suggests, maybe Williamson mc, or maybe Douglas/Williamson engine used for something entirely different. I wouldn't rule out wartime application. Most interesting!

Cheers

Leon

Offline roger h

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Re: Identify engine on ebay
« Reply #11 on: 09 Jun 2020 at 09:20 »
It will be interesting to see if it appears, now it has been sold. i was outbid!
Roger

Offline Douglas PDC

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Re: Identify engine on ebay
« Reply #12 on: 09 Jun 2020 at 18:36 »
Apologies Roger, that was me.
Once I have collected the engine I will post up some more pictures, would be great to find out where is originated. car, bike or stationary engine.

Offline roger h

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Re: Identify engine on ebay
« Reply #13 on: 14 Jun 2020 at 10:04 »
Well done. I think its from a car - mainly due to the flywheel drive pins (to a clutch and gearbox?)I would have loved to have attempted the recreation of the Mawer Brooklands racer!
Best wishes,
Roger
PS We've managed to sell 8 of the 10 new SW/DT gearbox sets!