K&B Sea Fury outboard engine, casting and box repair

$10.95 back then is every bit of $100 today. I would think that very few teens owned one of these when they were offered.

Very Cool Bob ! She is clean that boy took good care of his toys , should get Jacob to put the instruction sheet in the section for them . That is a good idea to put ping pong balls on it to keep above waters to retrieve if needed I had a chance to buy 3 of them at one time for $350 wish I had now and then but budget would not let me do it Nice stand for it too !

Are you going to run it , i know I would want to hear that baby even in a tub of water (bathtub) not

From an old Air Trails magazine I have….In “ kit reviews “ March, 1954….Thought it might be interesting …. You’re little outboard would be perfect for something like that…

Hello!

I'd found a Allyn Sea Fury last weekend that is in perfect state but, unfortunately the needle is missing.

I'd found yours posts and I'll interested to know i you can give me the dimensions of that part.

A little dimensioned drawing will be appreciate.

Does a Cox .049 needle could fit on that engine?    

I not sure to make it navigate but i would like to crank it one time at least.  

Thanks for your help

This Atwood needle from MECOA may fit, but it would be best to ask someone who has both type engines and see if they swap from one to the other.
https://www.mecoa.biz/shopexd.asp?id=1433

Merci Bob, thanks Oldenginerod!

Even if french is easier for me i continuing in english, it's will be more understandable for the international community, no? (Or not... )

Caliper is a good suggestion.
The most difficult will be for the thread. Something tells me that it's a imperial ones...

I'd a look to the mecao link but it seems to me that this needle is shorter than the original. Even if i can see K&B on the page...
I'll contact them and ask their opinion...

I have one of these and I ran it. Before R/C you let it go and hoped it circled back. Even used it briefly on a hydrofoil equipped model. My University prof was very impressed as was I.
This goes back to 1974.

Roddie, Champion made those plugs as glow as well. They made the 3/8"-24 spark plugs, 1/4"-32 spark plugs and 1/4"-32 VG-3 glow plugs

Thanks Bob!

So if i well understand the pictures, the major thread diameter is 1,75mm and the minor thread diameter is 1,13mm.

It's could be UNF #0: .060/.047 (1,52mm/1,19mm) or a size 11 in BA standard (1,5mm/1,13mm).

Could you confirm me that the major thread diameter is the same than just behind the knurled button?
Can you have a look too on the dimension from the tip of needle and the start of thread?
Thanks.

@roddie, thanks you.
i'm used with glow and spark plugs, i didn't already have a look to it.
it seems that it's,as say Ken Cook, a Champion VG-3 glow plug so i have to see if it's good or if should find a new one.  

So for the moment i staying on a BA11 ( due to the inner diam of 1,13).
From my researches, i'd found that this standard is a old one (BS93:1951) and that could match to our 1954 engine...

I'd manage to find a BA11 die in England ( steam models )

I'm not allowed, for the moment, to post the link...

it's seems to me that the tread, on pictures, is a little smaller that the shaft...

If you tell me that the major thread diameter is 1,5mm it's could be winned!

The Champion plug is quite old and I personally wouldn't use it. The wire has a fair amount of resistance and it takes a stout battery to light one off especially if you flood the engine. They make great conversation pieces and look great on period correct shelved engines. If you want reliability, use a new plug.

Gents I don't know why you are rabbiting on about 11BA-there is NO way on earth that an American engine would be using a BRITISH thread on the needle valve. I hope I don't have to explain-in an international forum like this that 'BA' is the abbreviation for 'British Association'-a thread series first proposed in 1884 and adopted in 1903-mainly used in clocks, watches, scientific instruments and electrical equipment. Even more ironically in the context of this particular forum thread it has a METRIC base.....and the antipathy of the USA to all things metric is well known....

The thread you want is 1-72.....how do I know?...because I have two Furys here both awaiting new needles-and currently sporting a 1-72 socket head screw screwed into the spraybar awaiting the day I get sufficiently motivated to turn up a suitable knob for the end and grind an appropriate taper on the other.....

Microfasterners.com will be more than happy to sell you a small quantity of 1-72 screws.....that's where mine came from-1-72 socket head in 1 inch length.....from memory that was the only head format I found on the website that offered that length in 1-72....and has the advantage that the small diameter socket head can be easily concealed with a knob...or if you so desire-in the interests of authenticity, cut off...and a replica larger diameter flat knob tapped 1-72 screwed on and soldered in place.....

ChrisM
' ffkiwi

So a UNF 1-72, less exotic than my BA one

I'll look for that type of screw or die at 1-72.

As we says: it's better one who know than ten who search, thanks ffkiwi.