Saving Old Seagulls

Hi There...

From time to time as well as getting Seagulls donated to the museum I get strange motors donated, and I was hoping one of the folks on this board can help me identify it? It does not have any manufacturing name plate. There are some holes where it could have been. Any point in the right ...

Since starting my interest in the Seagulls I have been approached to look after the engine collection at the Maritime Museum here in Cowichan Bay on Vancouver Island where I live...of course I said YES!!...here are a few pictures of some of my charges to look after.

http://theoaks.ca/pod1.jpg ...

I found two ads in the Small Boat Journel for 1985 and wondered if someone had some information...

http://theoaks.ca/seagul1.jpg

I have never seen this Seagull before? Here is the copy from under the motor...

http://theoaks.ca/seagulcopy1.jpg

The next one is for a Neptune Mighty Mite...I ...

In one of the boxs of Seagull parts I got dumped with, there were these three rotors...

http://www.theoaks.ca/rotors1.jpg

The Middle one seems to be a standard quite new with no instalation marks and the numbers 100P-1372 and words Top/End.

But what are the other two for/from? The one on the ...

...the float was allmost spot on so I tuned the needle down two turns and that has helped lean out the mixture some so that the engine is not smoking so bad...I am begining to think that the hole where the needle goes in to it's seat maybe worn.

That's the correct needle and fuel mix combination.

From an old Villiers book:
When the float is help up against the float lever the distance between the float and the underside of the carburettor body should be 7/32"

Have you tried adjusting the needle?

If it is running too rich it will 4 ...

charlesp wrote:Are you running on the right fuel mix?

Number 3 needle and 10-1 ratio with the TC3 oil.

My long shaft 102 starts fine but does not like to be choked even when cold ...with the choke on it starts to stumble in less than 10 seconds but comes back to life if I can catch it before it stops by flicking the choke off...my other Seagull likes to warm up and runs with the choke on for a minute ...

While going through a couple of old boxs of Seagul parts I found these two that fit the witworth nuts and bolt heads of my Seagulls...
http://www.theoaks.ca/spanners.jpg


...they probably would work in an emergency...but for regular spanner spinning they are a bit awkward to use. Other than a ...

...is it just me or have folks found the lager capacity seagulls smoke more than the small 40's...I am woundering if the lower compression ratio of 60psi in the larger engine block causes this and the higher compression 130psi of the small blocks makes for more complete combustion thus less smoke?

Interesting light - what, just about sunset (or sunrise...) with what looks like a well cared-for Forty Plus?

Amazing engines, these things.

...yes the sun went down as a huge orange ball...we have had some forest fires accross the province in the past while and the smoke drift has been quite ...

I am trying to get a few things sorted on this site and trying a picture post...if all goes well it should be a picture of my first Seagull...I have to make a mount brcket for the rail of my boat...so many things to do and sooo little time...any way here goes.

billyboy wrote:yes... that is the correct prop. there is also a 5-bladed 11" prop that will suit that model. dont know too much about racing myself but i would imagine a smaller and faster prop and gearbox would be more suitable.

Thanks for the info on the propeller...no I won't be racing the Seagull

As an experiment remove the powerhead & try seeing how much water will pass through the cylinder via the water delivery pipe, with only 2 or 3 foot head of water pressure, using a funnel & a bit of plastic pipe.

Good idea. A stop watch and a calibrated jam jar under the end of the pipe might add ...

The water pump impellor is highly unlikly to be the cause of your problem & adding a "washer" underneath it is only going to restrict the flow into the pump chamber, the probable location of this crisis is after the water pump housing.

As an experiment remove the powerhead & try seeing how much ...