Author Topic: Douglas engine number ?  (Read 3754 times)

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Offline glaser 31

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Douglas engine number ?
« on: 24 Jan 2012 at 08:51 »
anyone knows what engine this is : FT3726

Offline Chris

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Re: Douglas engine number ?
« Reply #1 on: 24 Jan 2012 at 13:58 »
Hi Glaser
    I'm not sure but I think that you will find that this is the 350cc twin cylinder engine used in the World War ll generator units. Chris.

Offline glaser 31

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Re: Douglas engine number ?
« Reply #2 on: 24 Jan 2012 at 15:13 »
hi Chris,
the strange thing is my friend says it is a sidevalve ?
I have not seen it yet,but 37 does it means it is from 1937
regards Glaser

Offline Reg

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Re: Douglas engine number ?
« Reply #3 on: 25 Jan 2012 at 13:14 »
Hi Glaser,
                 In all probability this engine if a side valve as you say it is, would be from a Douglas Industrial Truck. Engines with the prefix letters of FT would be from examples of the Series 10 models which were produced under licence from Douglas by Withers (W.N.) Ltd of Wordsley, Stourbridge in Worcestershire. This particular series comprised of five models being;
a. Low loading Non-elavating
b. Low loading Elevating Platform
c. high loading Non-elevating
d. High loading Elevating Platform
e. The High Lift.
Fundamentally, the basic design of the Douglas Industrial Truck remains unaltered since its introduction to the public in 1928. The engine was based on the 596cc EW design and the first customers for the truck was the Great Western Railway using them at the Temple Meads, Bristol main station. Production took place before, during and after the Second World War. Eddie Withers became involved shortly before the Westinghouse take-over so I can imagine this particular engine FT3726 being manufactured possibly mid to late 1950's.
In the event other engines or crankcases come to light with numbers not recognised from normal motorcycle sequences below are prefix indentifications for reference purposes.
Engine Numbers
6R101 to 6R127
SR128 - 40 to SR421 -41                Models 5 and 6
1FT60 - 100 to 1FT60 to 125          - - - - - "- - - - -
Prefix 2FT                                        Model 7
Prefix 4FT                                        Model 8
Prefix 5FT                                        Model 9

The wartime generating set 350cc ohv engines as mentioned by Chris would be prefixed FT35