British Sea Gull Outboards
by Chuck Petersen
Few imports have made an impact on the outboard
market in the U.S. with giants Mercury and OMC dominating post WWII
sales, a niche market was the most any import could hope for. In the
racing venue, Japanese Yamato and German Konig motors have found a
home. The British Sea Gull found such a market with the sailing
crowd looking for an upscale, quality brand for auxiliary or dinghy
power. The primitive looking motors often are confused for antiques
with their non-shrouded gas tanks and simple controls. The basic
design however, was produced well into the 1990’s.
Beginning in the 1920’s, the Marsten (designer) Sea Gull was
produced in Woverhampton, England by the Sunbeam Motor Company. Sea
Gulls soon gained a reputation among sailing clubs for reliability
and saltwater resistance. Sunbeam later sold the Marque to the Sea
Gull Company, Ltd. Of Poole, Dorset. American sailors in WWII were
exposed to the product, fostering a market in the U.S. during the
1950’s.
Features like a brass fuel tank, bronze clamp brackets and chrome
exhaust housing bespoke quality and attention to detail. Geared for
low rpm, high thrust applications, they work best on displacement or
non-planing hulls. Four basic models were available, the prime
difference being displacement, carburetion and gear ratio. All Sea
Gulls use single cylinder blocks with one carburetor and magneto
ignition. Horsepower varied from 2-3 hp with the “Forty Plus”
model to 4-5 hp with the “Century” model. Later “Silver
Century Plus” models were rated at 5 ˝ hp.
Interesting features include a side mounted carb., bicycle type
butterfly throttle (no spark advance control) and a spring loaded
propeller. The heavy conical shaped spring replaced the traditional
shear pin found in U.S. motors. The idea was to absorb minor impact
without shearing. Champion model D-16 spark plugs are standard.
One frustrating factor encountered
by restorers involves the fasteners used. The British Whitworth
thread was used prior to 1973. Neither SAE or Metric tools will
work. British Motorbikes like Triumph and cars such as the MG share
this issue. Restorers looking for spares, tools, etc. should
consider Ron Battistan in Victoria, BC, Canada. His website is easy
to find and the only one specializing in Sea Gulls I was able to
find.
The only example of the Sea Gull I have run across
is sitting in my shop looking for a home. A fellow church member was
cleaning out his basement prior to moving and asked if I would look
it over and sell it for him. While not the high speed type of engine
I specialize in, I must admit a certain fondness for this gleaming,
like-new condition 1969 4 hp model. What a nice living room
conversation piece. Are you reading this Dr. Bob?
Hello to all my friends at BSLOL. The 2000 Rendezvous was a
resounding success. The number and quality of boats keeps getting
better and better. This is particularly true of the outboard class.
Those judges really had their hands full! I hope to see some of you
at the Mt. Dora, Florida show.
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