Cox Reed Valve FAQ
08-14-2010, 02:50 PM
#228
RE: Cox Reed Valve FAQ
If you look at dckrsn's photo (click on the full size/fully enlarged view), you'll see a groove or machined split right above the gasket. I'm only guessing this piece comes off. Whether screws off or friction fit. But I could be completely wrong.
08-14-2010, 03:05 PM
#229
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RE: Cox Reed Valve FAQ
Perhaps I need to see an optometrist lol but I can't see a split.
Are your referring to the tubes that stick out top and bottom? If so, those are the vent/filler tubes that are integrated into the stunt tanks.
Bernie
Are your referring to the tubes that stick out top and bottom? If so, those are the vent/filler tubes that are integrated into the stunt tanks.
Bernie
08-14-2010, 05:56 PM
#230
RE: Cox Reed Valve FAQ
No, not the tubes. Look at the gasket and where the bolt hole is, lets say from our point of view, the eight o-clock position, I'm guessing about .100" above the gasket there is a curved line that seems to run around the whole reed valve that extends into the crankcase. I'm wondering if this comes off and the reed valve can be put into and then capped with the reed retainer. Kind of like how Sure Starts are configured. On a Sure Start, there is no circlip but there is a reed retainer. I can't imagine little old ladies assembling reed valves by bending them and working them into a machined groove. That would have been nuts.
08-14-2010, 06:32 PM
#231
RE: Cox Reed Valve FAQ
I see it. This is a step where the reed housing is a larger dia to create a better fit in the crank case. My Golden Bees and BW's have the same step.
08-15-2010, 12:43 PM
#236
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RE: Cox Reed Valve FAQ
I asked Dan Sitter, a foremost authority on matters Cox, and below is his reply:
Bernie:
I have seen this setup mostly on the large Cox fuel tanks. As you noted, the reed is held in place with the round metal "cap." I have seen very few of these, therefore I assume that they were used for a very short time. I have no history regarding this type of reed retainer. I would speculate, and this is purely speculation....that when Cox discontinued the wire reed retainer, they began to use this type of reed retainer. To make the metal "cap" reed retainer probably proved to be relative expensive, and was replace with the plastic reed retainer that were in effect until Estes sold the busines.
Dan
08-15-2010, 11:18 PM
#239
RE: Cox Reed Valve FAQ
I don't know, Bernie says "the metal "cap" reed retainer probably proved to be relative expensive, and was replace with the plastic reed retainer that were in effect until Estes sold the busines". Sounds like it came off. But if you say is doesn't come off, then fine.
08-16-2010, 08:45 AM
#240
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RE: Cox Reed Valve FAQ
No, it does not come off. I think that Dan just used the word "cap" for lack of a better term. The one that comes off (the plastic version) is caller a "retainer".
Bernie
10-18-2010, 05:44 PM
#241
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RE: Cox Reed Valve FAQ
Just a thought that came about from another thread about the origin of the "Thimbledrome" name associated with some of the old Cox stuff. If some of you want to post scans of old ads or articles from the 50's and 60's for Cox engine specific material it would sure help the decor of this thread and give some of the youngun's a taste for the origins of the Cox engines.
With the demise of of the original Cox company and how most of the magazines that published the ads and articles being gone I can't see much in the way of copyright infringement.
With the demise of of the original Cox company and how most of the magazines that published the ads and articles being gone I can't see much in the way of copyright infringement.
01-27-2011, 07:19 PM
#248
RE: Cox Reed Valve FAQ
Yes, I do remember that. And we would also use Rit Dye while we were boiling them to give them some color. I don't remember it helping any, but they looked cool.
01-28-2011, 05:14 PM
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RE: Cox Reed Valve FAQ
ORIGINAL: BMatthews
Just a thought that came about from another thread about the origin of the ''Thimbledrome'' name associated with some of the old Cox stuff. If some of you want to post scans of old ads or articles from the 50's and 60's for Cox engine specific material it would sure help the decor of this thread and give some of the youngun's a taste for the origins of the Cox engines.
With the demise of of the original Cox company and how most of the magazines that published the ads and articles being gone I can't see much in the way of copyright infringement.
Just a thought that came about from another thread about the origin of the ''Thimbledrome'' name associated with some of the old Cox stuff. If some of you want to post scans of old ads or articles from the 50's and 60's for Cox engine specific material it would sure help the decor of this thread and give some of the youngun's a taste for the origins of the Cox engines.
With the demise of of the original Cox company and how most of the magazines that published the ads and articles being gone I can't see much in the way of copyright infringement.
http://www.mh-aerotools.de/airfoils/cox_frameset.htm
Go to "documents".
To me one of the things Cox engines excelled at, at least in the earlier stages of my lifetime, were being small economical powerplants for the experimenter, the tinkerer, that wanted to just try something different. This is not to say you could not do so with other engines, of course you could, but it just seems to me that a plethora of unusual and interesting projects were spawned because of small, simple, relatively fuss-free engines like the Babe Bee, Pee Wee etc.