SD 102

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Keith.P
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Re: SD 102

Post by Keith.P » Sun Nov 26, 2017 1:09 am

Oyster I think you are right, if you look at it more as a storm cowl, rather then a choke cover, which I suspect it was signed for in the first place, the choke was added later and the Patents continued.

Keith.P
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Re: SD 102

Post by Keith.P » Sun Nov 26, 2017 1:42 pm

I did wonder why it had the cut out, maybe you could choke it by hand but not totally flood it, but then why have a choke.
s-l16.jpg
Yet another variation.
s.jpg

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charlesp
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Re: SD 102

Post by charlesp » Sun Nov 26, 2017 4:56 pm

Here's a cowl from an F type Little Model Forty:
IMG_1532.jpg
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lodgey62
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Re: SD 102

Post by lodgey62 » Sun Nov 26, 2017 6:19 pm

My AC has that cowl,but it might be a bitsa

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charlesp
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Re: SD 102

Post by charlesp » Sun Nov 26, 2017 8:04 pm

Lodgey I doubt it's the same cowl as I posted. That knurled bit at the top is the choke control!

lodgey62
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Re: SD 102

Post by lodgey62 » Sun Nov 26, 2017 11:49 pm

Yes,your right,no knurled knob,it's a bitsa!

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Hugz
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Re: SD 102

Post by Hugz » Sun Nov 26, 2017 11:58 pm

Charles does the F cowl have an internal butterfly that turns 90 degrees?

Keith.P
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Re: SD 102

Post by Keith.P » Mon Nov 27, 2017 12:14 am

It's not that simple, You screw the wheel up or down for choke on or off.

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Hugz
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Re: SD 102

Post by Hugz » Mon Nov 27, 2017 1:38 am

Not exactly ergonomically friendly :lol:

Gannet
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Re: SD 102

Post by Gannet » Mon Nov 27, 2017 4:31 pm

I agree, when l last ran F201 on the back of my inflatable last December, it was a right fiddle. It is 8 turns with the knob on top from fully open to fully closed. That and with a bit of starting problem, I soon got confused whether the choke was on or off!
Not the best arrangement!
Jeremy

headdownarseup
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Re: SD 102

Post by headdownarseup » Mon Nov 27, 2017 6:57 pm

But basically the same casting as a 102 inlet cowl wouldn't you say Jeremy.

Jon

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Charles uk
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Re: SD 102

Post by Charles uk » Mon Nov 27, 2017 7:21 pm

Jeremy what's the throat diameter of your F carb & the diameter of the threaded hole in the back of the cowl?
Make it idiot proof and someone will make a better idiot.

Gannet
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Re: SD 102

Post by Gannet » Tue Nov 28, 2017 3:41 pm

Charles,
The dia of the inlet bore of the Amal carb off F1207 is 0.325. Note that F1207 is a 55cc engine.
The minor dia of the threaded hole in the back of the cowl is 0.775.

Hope this helps.
Jeremy

Gannet
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Re: SD 102

Post by Gannet » Tue Nov 28, 2017 3:58 pm

Jon,
Sorry, forgot to answer your question. Yes, it does appear to be the same as some 102 cowls that l have seen. I seem to remember that you showed me one which looked identical, but l don't remember which exact which model it came off. You are an expert on 102s - l virtually know nothing about them.
Keep up the good work Jon. The Seagull fraternity needs everybody's contribution.
Polite dialogue, with the ability to disagree is the key to hearing everybody's views and encouraging as many people as possible to contribute and join in with this hobby of ours.
Thanks for your help with my little FVs.
Jeremy

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Re: SD 102

Post by headdownarseup » Tue Nov 28, 2017 11:42 pm

Nice to know i still have some friends left on here, but i wouldn't call myself an expert. Never have, i just take an interest in 1 particular line of the seagull family tree (102's old and not so old) and see where it takes me.

You're welcome Jeremy , any time.


Jon

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