Fox 35's

Does anyone know the secret to determining what approx year and model Fox 35 you have. I see there is a 40th, 50th, a combat ect. I have one with a thrust washer that is splined on and one where it is a press fit ect.

I was looking for a web site or something similar that would give some identification clue's.

This is invaluable in identifying them. American Model Engine Encyclopedia. You can obtain one at this link:

http://www.modelenginecollecting.com

"Billy G"

I looked at the site you listed and it's excellent. Too bad father's day was last week. Now I have to grovel.

What fox 35 do you have that has a pressed on thrust washer? I have never seen one.
Is the thrust washer type of engine perhaps one that has a split cone type thrust washer similar to the Super Tigres? While those are not pressed on, they are sometimes very difficult to get removed. I am curious.

Bigiron

If you can put a picture on this site, I can tell you what it is.

Maybe a pressed on thrust washer is the wrong discription. One has a tapered thrust washer that the prop nut forces it against the crankshaft. The other one has a type of spline system. The one with the taper on the crank had a ceramic glow plug. The man said someone gave it to him years ago and he recently found it and knew that I flew C/L so he gave it to me. It runs great. But my main interest was on E-Bay. I see lots of them advertised but don't understand what I'm bidding on when they say a 40th or 50th ect.

The engine you describe is almost certainly one of the first, Permold (often referred to as "sandcast", but isn't), Foxes. It was manufactured in 1949 - 1952, but a photo would allow exact dating. The "ceramic" glow plug is probably a Champion VG-2.

Gary, Does your engine with the taper drive washer have a 4 bolt or a six bolt head. If it has a 4 bolt head, does it have a 3 bolt or a 2 bolt rear cover?

Now your other engine. Look at the picture attached. See how the bypass id recessed on the one on the left? Which engine does yours look like: ECJ #20 on the left or ECJ #27 on the right?

It will take a while without pictures, but I can pin your engines down if you'll stay with me! There were ABOUT 23 different Stunt 35s made between 1948 and 2008!

Bill Mohrbacher

[photo not recovered: 29485.jpg]

Attachment #1, (jpg file)

The photo's you enclosed are really interesting. Both have the six bolt head and 3 bolt rear cover. The one with the taper is like the 53 model and the other one is like the 54 Model. The 54 model also has a brass needle pin clip (I guess that's what you call it) that keeps the needle from turning

I took some photo's but each one exceeds the site's max size.

Bill:

This is really getting interesting now. Not only have I learned a little about Fox 35's, but I'm learning how to run my wife's digital camera. I determined there is a way to lower the quality with the push of a button. So, I've attached photo's as requested.

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Attachment #1, (jpg file)
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The pictures make it much easier Gary. Your engine with the taper drive thrust washer is a 1952 Fox 35(ECJ/AMEE #16) This was the first year for the diecast case, and 6 bolt head. The taper drive crank was still being used. First engines used the old Austincraft universal NVA, but later the Fox design. The NVA had the brass clip and NV with the flat. The first spraybars had a smooth fuel nipple, no grooves. Fox was using a cylinder head cast by the Rangers Company in LA. See the attached photo; I think your head will look like this one.

Your other engine is a 1954 Fox 35 (ECJ/AMEE #27). The 1954 engine had the deep bypass and didn't have a web under the nose of the case. It also used the Fox type NVA with the brass clip and smooth fuel nipple. Early 1954 engines used the Rangers head, later ones used the design now seen with the wedge shaped combustion chamber.

[photo not recovered: 29498.jpg]

Attachment #1, (jpg file)

Bill:

Thanks for all the work. You surely know your fox engines and I really appreciate your taking the time to do the research. My kids are always looking for Xmas and Bday presents so I've listed the excellent reference book somebody mentioned in an earlier reply. I don't think I'll get into collecting as I seem to spend most of my disposal income on balsa but this little dive into the world of collecting has surely been interesting and fun.

Thanks again,

> Fox was using
>a cylinder head cast by the Rangers Company in LA. See the
>attached photo; I think your head will look like this one.


Oh my goodness! It has so much clearance it doesn't need a slot to clear the baffle!? That's one low-compression motor.

Brett

>
> Does anyone know the secret to determining what approx year
>and model Fox 35 you have. I see there is a 40th, 50th, a
>combat ect. I have one with a thrust washer that is splined
>on and one where it is a press fit ect.
>
> I was looking for a web site or something similar that would
>give some identification clue's.
>
>
If you're interested in finding out more about Foxes, back issues of The Engine Collector's Journal (ECJ) contain quite a history of them. Tim Dannels probably has copies for sale. And, in the current MECA Bulletins, Bill Mohrbacher is doing a great series on the Fox Family Tree. If interested, send me an email and I'll send you email addresses so you can inquire.

Send me the information where I might be able to get back issues.


Thanks,