I really like these little motors, and that's a good example.
That tiny little tank with those strange long brass rods protruding to preotect the tank as you lay it on the ground fascinate me. Who on earth thought those up? Bill Pinniger of course.
This is the smallest offering from British seagull, the very first of Bill Pinniger's designs that owed nothing to Marston's, and it was very popular.
They can be absolute b******s to stip, or they can just fall apart for you. They're probably as bad for spares as the original OA.
But they chug along smoothly, pump water like a good 'un, and they even sound nice.
Your example even appears to have the original transom bracket, which is smaller than the 40 series version, and is rather scarce. Look after it!
These 'Little Model Forty' Seagulls are really neat little things and deserve looking after.
one good thing with the engine is that it starts first time every time, I never changed the spark plug as it is an old twin spark plug and works fine.
The only part that is not right is the exhaust tube, that I made out of stainless steel,but it looks and works ok.
I would like to get hold of a better handle grip and the tank will stay as it is & still has the seagull logo.
(Any one need an HT lead I think its off a silver century, I only needed the cap)
The exhaust as I remember was a stainless steel tube, 1 3/4" OD, 1.5mm wall, and about 17" long, but it would not fit the manifold as the stainless has a thicker wall.
So I made an oversized steel plug and hammered it into the tube to flair it to the size that I was after.
Easy to do and the flair does not notice.
Now your a man who could draw us a target for taking pics of props on, & just Email us the file so we could print it.
A target with a 12mm dot in the middle then 2" to 13" diameter circles in 1 inch increments with 2mm line thickness, with 25 mm high size numbers running horizontally out from the center, all this so that almost a thumbnail sized pic will give all the info needed.
All printed on a 14"square of paper with a black line around the outside that will form the outside of the image.
As most people only have an A4 printer it would have to be 2 separate drawings that could be joined together.
Then we can get John to give us space to post a pictorial guide to known Seagull props & which models they were used on.
can you tell me what you did to the drive tube on your motor to get that finish? I have one here that has almost as much rust on it as yours in the before pic. Sadly I ran mine in the water tank the other day, and found it won't pump any water so may have to have the head removed.
Hi the names Keith, Dont take the head off, first try some mig(welding) wire up in the water jacket and see what you get out or just stick a hose pipe up it. (Head end)
The water hole is a good size so you may be able to remove some crud.
Paint - you can use a silver oxide or silver hammerite smooth but try to rub down as best as you can.
Hope this helps
Tried the garden hose trick no water flow out the little inlet ports by the pump impeller, plenty of water on me. Will try some welding wire see how that goes, I have spoken to John @ SOS and he has reminded me of his steam iron de scaler trick. I have found in the past with those methods that leaving cast iron in those sorts of baths for too long can do more harm than good.