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Old 03-03-2007, 11:42   #16
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Aloha all,

The Seagull is happy again!!

Thanks for all your suggestions and the website information.

Here's how I cured the cooling problem. I found some old air foot pump nozzels and hose clamped them to an old washing machine hose then hose clamped the other end to a regular female hose fitting. After air blasting and hose blasting for about an hour one day which helped a little I mounted the engine to a sawhorse over a large tub. I jambed the nozzle end of the newly made up hose into the cooling water port on the back side of the engine block. I then put the other end of my jerry rigged hose on my garden hose and turned the water on slowly (not too much pressure). I let it run like that overnight.

The next day after unrigging the hose I started the engine and a steady stream of water came running out the cooling port.

Thanks to all for your help. I truly did not want to take the engine apart that would have been my last choice because of all the seized nuts and bolts.

Kind Regards,

JohnL
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Old 06-01-2008, 01:07   #17
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The British Seagull I remember had a Villiers derived motor--so Villiers parts might fit. These angines were also fitted to many British small motorcycles--the Dot scrambler and the James, to mention just two. If the thing is really hard to start it may be the capacitor or the magneto coil--sometimes the alnico magnets in the flywheel get a bit tired and need remagnetising. They would have to be one of the most trouble-free engines ever made, but that carby is not a great design.

I would also suspect a mud wasp may have built a nest in the water temperature regulating exit hole.The size of the hole is critical. If it is blocked the engine will boil itself dry and seize--if it is enlarged it will use excess fuel. Fitted with the right propellor for the job they will push a barge. Ideal for a small multihull auxiliary engine, just keep a spare plug handy and premix the clean fuel and oil accurately. Check the bevel gear seals and gearbox oil and reverse shaft seal now and again. Primitive but reliably simple--they were and still are used all over the world in the most remote places, some are decades old and still whining along.
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Old 11-06-2008, 14:04   #18
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Just wondering how well a Silver Century would push along a 25'er. Just need in/out of the marina.
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Old 11-06-2008, 14:23   #19
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Aloha Russell,
Silver Century will push it along just fine.
Good luck.
JohnL
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Old 11-06-2008, 15:56   #20
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For what it is worth, around here you can pick up Seagull motor parts (and even complete motors) , for almost nothing from tip shops.
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Old 12-06-2008, 04:13   #21
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The 5-5.5 HP Silver Century is recommended for:
Heavy work boats 14 to 17 feet, as an auxiliary for boats of 2 to 3 tons, full bodied boats, fishing boats, scows 15 to 25 feet and as an auxiliary for boats 3 to five tons.

The 3-4.5 HP Silver Century is recommended for:
As a second motor for a 17 to 19 foot runabouts.

Goto:
Boat Type and Size Recommendations
British Seagull Outboard Motors: Boat Type and Size Recommendations

Some good Seagull information:

http://www.lagerholm.com/seagull/index.html
Saving Old Seagulls
British Seagull Outboard Motors (Includes lots of good links)
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Old 12-06-2008, 17:18   #22
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Thanks for the links Gord. They certainly are helpful. According to the info mine is September 79 model with 2-3 hp and electronic ignition.
JohnL
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