To which engine does this part belong?

Cox International Thu Jul 14, 2016 5:58 pm

They have star-shaped brass reed valves. Anyone know which engine uses them? Click on picture to enlarge.
To which engine does this part belong? Wtf10

To which engine does this part belong? Wtf10

pkrankow Thu Jul 14, 2016 6:47 pm

Look like Testors product engine... maybe

https://www.coxengineforum.com/t1590-testors-plastic-crank-case-engines

I guess you are in the Testors business now too! lol!

Phil

Oldenginerod Thu Jul 14, 2016 6:54 pm

Definitely Testors rear ends. Can't say I've ever seen a brass reed in one, but there were a few variations.
Bernie, I'd be in for a couple once you get them on the market.

Rod.

TDbandit Thu Jul 14, 2016 6:58 pm

I agree intact those go to the metal cased PB (Pipe Bomb) engines (Bandit)

Cox International Fri Jul 15, 2016 10:19 am

Thanks for the answers and, as we also received Testors engines and parts with the 100's of Enya, Webra and OS Max parts, that makes sense.

Diameter of the part that goes into the engine is 16.6mm (or 0.575" for our friends south of the border Smile

). As we sold all the Testors engines, we cannot see if they fit those but perhaps someone can now definitely confirm that they are for the Testors .049 "pipe bomb" engine"

They are for sale and what would be a fair price?

Cox International Fri Jul 15, 2016 10:21 am

Upon closer inspection, the reeds are not brass. They are black and perhaps plastic?

KariFS Fri Jul 15, 2016 12:11 pm

Cox International wrote:Thanks for the answers and, as we also received Testors engines and parts with the 100's of Enya, Webra and OS Max parts, that makes sense.

Diameter of the part that goes into the engine is 16.6mm (or 0.575" for our friends south of the border ). As we sold all the Testors engines, we cannot see if they fit those but perhaps someone can now definitely confirm that they are for the Testors .049 "pipe bomb" engine"

They are for sale and what would be a fair price?

Send me one and I'll test the fit for you free of charge lol!

I do actually need one as I have a never run metal case unit that is missing the spring starter and also the NVA is missing. The rest of the backplate is there. And I also have a NIB glowhead for it so I may want to play with it some time.

Not sure about the fair price. These are not the most collected engines in the world but on the other hand there most likely are people who would want these bad. If you want to move them, maybe the price could be something like 50 or 75% of the comparable Cox assembly?

Cox International Fri Jul 15, 2016 12:19 pm

Not sure what a comparable Cox assembly is lol!

KariFS Fri Jul 15, 2016 2:27 pm

I meant a plastic backplate with the reed valve and the retainer. In my opinion a postage stamp version would be "direct analogy", but a horseshoe would be close too.

But then again I am no expert on the subject Smile

pkrankow Fri Jul 15, 2016 2:54 pm

Cox International wrote:Not sure what a comparable Cox assembly is

The part that holds the reed and spraybar... The surestart back without reed is $1.95, with reed and retainer, needle, and gaskets $5.95.

So apparently somewhere in this range, or half this range, is suggested.

However an original white postage stamp with spraybar only is listed at $6.95.

I guess the issue is what can you sell them for and make a profit?

I have no idea the demand of this part. I think I would include one in my next order, I haven't gotten my Testors engine to run yet, but I was not working up an order right now. (Ill admit to not trying very hard on this engine yet)

Phil

dckrsn Fri Jul 15, 2016 4:45 pm

Cox International wrote:Not sure what a comparable Cox assembly is

Well, I was struck when I saw the part, and thought it looked familiar.
Cox made a part just like it for the Shinn cl plane, in aluminum and plastic.
They used a circlip and a star reed and were held to the case by the firewall.
The ones you have look like they might be a snap-in deal, like the pipe bomb tank.
To which engine does this part belong? Dsc05210

To which engine does this part belong? Dsc05210

To which engine does this part belong? Dsc05212

If they fit the bomb, I'd buy one.
Bob

Oldenginerod Fri Jul 15, 2016 6:36 pm

Not having a needle valve will bring their value right down, along with the fact that there's probably only 20 people around the world who could be bothered with a Testors Pipe Bomb.
(I'm one lol!

)
I'd say equivalent to your white horseshoe backplate at $3.95, although that doesn't have the reed & retainer.
Rod.

batjac Fri Jul 15, 2016 8:10 pm

The big problem is going to be the needle. When I was looking for a new pipe bomb needle, I couldn't find anything that would work other than a genuine Testors/Wen-Mac needle. I only see those pop up occasionally, and you're looking at close to $10.00 shipped.

If those assemblies fit into the GRP bodied Testors cases, they'd be a little easier sell. But they don't, the GRP bodied cases need a molded ridge on the needle assembly, and the metal pipe bomb engines without the back don't come up as often as the GRP cased ones do. Not sure how to market those, I'm afraid.

The Downer Mark

Cox International Mon Jul 18, 2016 11:17 am

The reason the Cox backplates are so inexpensive is because we have over 12,000 of them and we are selling them for the price we would normally charge just for the spraybar. The Testors version we only have 12 and we could supply them with a reed, needle valve/spring and spraybar seal as per pictures, say for $6.95?

Yes, it's a Cox spraybar and needle valve/spring but the spraybar dimensions are identical.
To which engine does this part belong? Testor10

To which engine does this part belong? Testor10

To which engine does this part belong? Testor11

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To which engine does this part belong?

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