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 'SJP51504'

Series: The Forty Series

Manufacture Date: 1962 to 1963




'SJP' Coded Engines
Years Manufactured 1956 to 1967
Series Forty
Model Plus
HP 2-3
Ignition Villiers
Gear Oil SAE or EP 140
Picture  

Engine Fuel Mixture Ratios
Years Manufactured 1931 to 1967
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

Engine Boat Type & Size
HP* 2-3
Model Forty Plus/55/60
Vessel Type/ Size The ideal engine for 10-14 foot dinghies, rowing boats and as stand by power for smaller sail boats. Can be seen on larger craft too, up to 18ft!
*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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