SOS British Seagull Engine Identifier

Please note that this is the Beta version and still in testing. If you notice any anomalies, we would be very grateful if you could tell us by emailing John on the address at the bottom of the page. Please remember to include the actual serial number that you used. Thanks, John.
Engine Serial Number:
Data Specific To Serial Number 'WS447M2'

Manufacture Date: November 1972

'WS' Coded Engines
Years Manufactured 1969 to 1979
Series Silver Century
Model Amal 2 Jet Carb
HP 4.5
Ignition Wipac Mk 2
Gear Oil SAE or EP 140
Gear Oil SAE or EP 140
Picture  
The Amal 416 carb was used on some WSC and WSPC models, all ESC, ESPC and EFNR models. John, SOS.

Engine Fuel Mixture Ratios
Years Manufactured 1968 to 1978*
Ratio 10:1
1 gal. unleaded 12.8 oz. oil (3/4 pint)
5 litre. unleaded 0.5 litres oil
Oil Outboard 2 stroke to TCW2 or 3
*These motors may have been, and can be, converted to 25:1 mix, check the carb, see FAQ page.

Engine Boat Type & Size
HP* 5
Model Silver Century/90/Osprey
Vessel Type/ Size Heavy work boats 14 to 19 feet, as an auxiliary for boats of 2 to 3 tons, full bodied boats, fishing boats, to 24 feet and as an auxiliary for boats 3 to five tons. This tonnage may be Thames, certainly not displacement!
*HP represent the manufacturers HP model number. Since British Seagulls are rated in foot pounds the actual horse power rating may not be entirely accurate to the numbers listed. (33 foot pounds = 1 HP) Sealed box British Seagulls can be recognised by an extra screw in the gear box casing just above the top gearbox cap screw. This screw secures the bearing assembly. Note! The Hp ratings are very approximate! Later investigations proved they were wildly inaccurate, and the thrust at the prop became more important and was the figure used to denote models, ie the Featherweight become the 45, the EFNR the 90. John, SOS

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