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RE: Cox Reed Valve FAQ - 9/22/2009 5:45 AM   
Lite2bolt


 

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Status: offline 		Good news COXinternational has new heads,gaskets and just about anything you want or need. With a few exceptions like small tank and 7x3.5 props. Their web sight is www.coxengines.ca yea its in canada.but i havehad nothing but great service and parts are very reasonable. just my 2 cents

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RE: Cox Reed Valve FAQ - 9/24/2009 1:17 AM   
dckrsn


 

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< Message edited by dckrsn -- 9/26/2009 4:44 AM >

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RE: Cox Reed Valve FAQ - 10/1/2009 7:02 AM   
Tom Nied



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Status: offline 		Do the Sure Starts benefit with a piece of tubing on the needle valve to create a better seal? The reason I ask is when starting one tonight, I noticed when I pushed down on the needle it sped up and screamed a higher pitch.

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RE: Cox Reed Valve FAQ - 10/1/2009 7:43 AM   
lildiesel



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Status: offline 		I keep checking this thread wondering why my reedies always start.

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RE: Cox Reed Valve FAQ - 10/1/2009 12:40 PM   
Lost Glider


 

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quote:

ORIGINAL: Tom Nied

Do the Sure Starts benefit with a piece of tubing on the needle valve to create a better seal? The reason I ask is when starting one tonight, I noticed when I pushed down on the needle it sped up and screamed a higher pitch.

Surestart engines suffer from a bad needle valve spray bar fit. My solution was a piece of Dubro small silicone tubing, cut 7/16 of an inch long, and a piece of vinyl house siding with a 3/32nd inch hole drilled in it. This will do three things, 1 stops air from being sucked in, 2 stops the needle from springing back when adjusted, and 3 prevents the needle from self adjusting itself from vibration. When installing this, lubricate the top of the spray bar, and the end of the silicone tubing. Push the needle straight into the spray bar and rotate until the threads finally catch. Do not wiggle the needle valve around, as you will bend the tip of it, push it straight in and keep turning.

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RE: Cox Reed Valve FAQ - 10/1/2009 4:29 PM   
Tom Nied



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Status: offline 		Thanks Lost Glider. That's just the answer I needed.

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RE: Cox Reed Valve FAQ - 5/1/2010 4:38 PM   
AMB


 

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Status: offline 		If you guys contact Cox international in Canada , They have all the Cox stuff 1-877-769-1779, they have all the cox stuff i just bought a NEW sure start for $14.85, a cylinder
piston rod assembly is $4.95 all the lower end stuff too crankcases shafts and all orginal cox parts they bought all the Estes stock, They will have an RC cox in about a month
amazing all the little bits an pieces ,heads back plates rebuild kits, spinners too(check their on line site) and prices, Add a Davis diesel head and one of the best little diesels out there martin
new baby bees $39.95 if you want nice pretty colors they are $10 more

Light bolt thx missed your post when I did this , one important thing is we can get the cox stuff and new engines and priced right thus no issues withy used * bay stuff

< Message edited by AMB -- 5/1/2010 8:24 PM >

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RE: Cox Reed Valve FAQ - 5/2/2010 9:35 PM   
Cox International



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From: Williams Lake, BC, CANADA
Status: offline 		Thanks for the kind post AMB.

We saw your mention of the RC engine and would like to advise that, as of yesterday, we have one form of a throttled engine as well ar R/C throttle rings available. Here are some links:

http://coxengines.ca/product.php?productid=384&cat=13&page=1

http://coxengines.ca/product.php?productid=385&cat=13&page=1

http://coxengines.ca/product.php?productid=386&cat=16&page=2

We also currently have in production an R/C throttle that will mount into the Surestart choke tube, permitting the simultaneous use of a throtlle and and a muffler.

Cheers
Bernie


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RE: Cox Reed Valve FAQ - 7/26/2010 12:57 AM   
dckrsn


 

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Status: offline 		This question got lost somewhat in the "COX 049 Bee mixed parts" thread.
Does anyone know the origin of this tank?
It doesn't use a spring or plastic retainer to hold the reed.
The edges of the reed get tucked into a groove where the
e-clip would usually seat, and thats it.
If it was a prototype, I can see why it didn't work out.
It's a bit of a task to install the reed in it.
It's an 8cc tank with stunt venting.
Thanks in advance for any help.
Bob

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RE: Cox Reed Valve FAQ - 8/14/2010 4:01 AM   
dckrsn


 

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Status: offline 		Hi,
Regarding the question above, I'm starting to think the answer is so obvious
that it doesn't warrent a reply.Hmmm. Or, nobody knows. Hmmm.
I dunno.

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RE: Cox Reed Valve FAQ - 8/14/2010 12:21 PM   
N1EDM



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Status: offline 		I've had a variety of Cox engines over the years but never saw a reed installed like that.. They usually had the circlip holding them in. Perhaps someone can enlighten us?

Bob


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RE: Cox Reed Valve FAQ - 8/14/2010 1:32 PM   
Mr Cox



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Status: online 		It just looks like a regular tank without a circlip mounted to me.

In second hand engines you can find just about anything, I have seen circlips mounted the wrong way around etc. Now you know why it was sold in the first place...



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RE: Cox Reed Valve FAQ - 8/14/2010 6:02 PM   
Tom Nied



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Status: offline 		Could it just be a metal version of the reed retainer we find in current Sure Starts?

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RE: Cox Reed Valve FAQ - 8/14/2010 7:50 PM   
N1EDM



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Status: offline 		I dunno, that doesn't look like it has the room for a circlip to me. I'll have to check an engine or two. Still, that's a possibility.

Bob


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RE: Cox Reed Valve FAQ - 8/14/2010 8:10 PM   
Tom Nied



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Status: offline 		On current Sure Starts they do not have the circlip but instead a reed retainer. xenalook's photo http://thumbs3.ebaystatic.com/m/mt7IpwjWNZ_13RjKwQ7swqg/140.jpg I know the one pictured above looks like it might be made of aluminum.

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RE: Cox Reed Valve FAQ - 8/14/2010 11:19 PM   
dckrsn


 

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Status: offline 		Thanks for the responses.
I gave it another real hard look and considdered the answers above.
I tried putting a circlip in but it wont seat and pops right out.
The same spring mounts in a "normal" tank, no problem.
If I could get the clip to seat, it would hold the reed tight against the
fuel-air passage, not alowing it to float.
None of the plastic retainers will fit on the tank. I tried the sure start
type and the top hat styles for extruded and cast cases and they dont fit.
It's not a metal sure start style retainer, it's all one piece.
The reed has to be flexed and tucked into the groove.
Here's another photo.


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RE: Cox Reed Valve FAQ - 8/14/2010 11:25 PM   
Cox International



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Status: offline 		I have come across this tank on numerous occasions. The tank should not require a reed retainer as it is designed that way.

As to when and why Cox made them that way, dunno but I'll ask the question of someone that might know.

Bernie



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RE: Cox Reed Valve FAQ - 8/14/2010 11:31 PM   
Tom Nied



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Status: offline 		What is the purpose of the groove right above the gasket?

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RE: Cox Reed Valve FAQ - 8/14/2010 11:35 PM   
Cox International



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Status: offline 		Groove... what groove???

Bernie



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RE: Cox Reed Valve FAQ - 8/14/2010 11:50 PM   
Tom Nied



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Status: offline 		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.

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RE: Cox Reed Valve FAQ - 8/15/2010 12:05 AM   
Cox International



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Status: offline 		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


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RE: Cox Reed Valve FAQ - 8/15/2010 2:56 AM   
Tom Nied



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Status: offline 		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.

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RE: Cox Reed Valve FAQ - 8/15/2010 3:32 AM   
controlliner



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Status: offline 		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.


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RE: Cox Reed Valve FAQ - 8/15/2010 6:03 AM   
Cox International



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Status: offline 		Oh, that is what you mean. As stated by the previous poster, it is merely a step-up for a better crankcase fit.

Bernie



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RE: Cox Reed Valve FAQ - 8/15/2010 6:13 AM   
Tom Nied



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Status: offline 		Okie Dokie then. Well that's a weird way to put in the reed. You have to bend it to get it into position?

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