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» Project Cox .049 r/c & Citabrian Champion
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» thread measurements
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» OS 10FSR Carb Needed
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» dozens of old .049 TeeDee's, Medallions and a few others
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"COX Budapest" .049 engine



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Post  EXModelEngines Tue Sep 29, 2020 2:29 pm

Anyone know which plane these were used on?

B15 Set of Screws
B14 Decal Set (Pilot decals pictured)

K-14 Pylon Motor
K-11 Pylon Motor Prop

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Post  Levent Suberk Tue Sep 29, 2020 3:39 pm

Hi Matt, K 11 and K 14 are Cox Canario model parts.
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Post  EXModelEngines Tue Sep 29, 2020 3:42 pm

Levent Suberk wrote:Hi Matt, K 11 and K 14 are Cox Canario model parts.

Thanks!
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Post  dckrsn Tue Sep 29, 2020 5:13 pm

Matt, I think the screws and decals are for the
old TD-4 plastic profile CL plane.
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Post  EXModelEngines Tue Sep 29, 2020 5:29 pm

dckrsn wrote:Matt, I think the screws and decals are for the
old TD-4 plastic profile CL plane.
Bob

That's it - thanks!
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Post  EXModelEngines Wed Oct 21, 2020 9:07 am

Anyone know the manufacturer on these? Fits an 049.

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Post  gkamysz Wed Oct 21, 2020 9:20 am

That looks like the G-Mark .061 muffler. It fits Cox .049? The G-Mark cylinder is quite a bit bigger.
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Post  EXModelEngines Wed Oct 21, 2020 9:45 am

gkamysz wrote:That looks like the G-Mark .061 muffler. It fits Cox .049? The G-Mark cylinder is quite a bit bigger.

That's what I thought too! But it does fit the 049 - sort of an oddball.
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Post  davidll1984 Wed Oct 21, 2020 4:45 pm

Posible g mark .03 its wat it look To me
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Post  sosam117 Wed Oct 21, 2020 6:05 pm

Matt,
I have one G-mark .030 and one G-Mark .061 which I purchased in 1981 and 1982.
What you have is the muffler for the G-Mark .030 engine.

Wish I had the money back then to get at least one engine each of all the G-Mark engines.
You could get two Cox engines (plus change) for one G-Mark engine.

Here is the add from years ago of the G-Mark family
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Photo below is of the G-Mark .061 engine
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Last edited by sosam117 on Thu Oct 22, 2020 11:07 pm; edited 2 times in total
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Post  davidll1984 Wed Oct 21, 2020 6:31 pm

l
yes a .03 gmark say it first Not bad for Young man started hobby back in 1990 Young boy wit old man knowledge specialised in smal engines Not sur god for cox .049 ???? Thumbs Up
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Post  gkamysz Thu Oct 22, 2020 8:31 am

That's curious, my G-Mark .03 mufflers don't zigzag like that and won't fit even thin wall .049 cylinders. The engine pictured above is the .061.
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Post  EXModelEngines Thu Oct 22, 2020 8:54 am

A little update on this: It turns out the Muffler is from a G-Mark .061. The engine it came off of is a new Cox 049 but it was acquired in a group of parts and I didn't look closely enough at the cylinder. The prior owner made a small ring that essentially extended one of the fins to correctly align with the ID on the muffler housing.

I can also confirm it is not a G-Mark .03 muffler as there was one of those in the parts lot and it is much smaller as noted by some earlier in the thread.

Matt
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Post  happydad Thu Oct 22, 2020 5:47 pm

EXModelEngines wrote:A little update on this: It turns out the Muffler is from a G-Mark .061. The engine it came off of is a new Cox 049 but it was acquired in a group of parts and I didn't look closely enough at the cylinder. The prior owner made a small ring that essentially extended one of the fins to correctly align with the ID on the muffler housing.

I can also confirm it is not a G-Mark .03 muffler as there was one of those in the parts lot and it is much smaller as noted by some earlier in the thread.

Matt

Someone on ebay is selling a muffler for the Enya .049 which almost fits a #1 Cox cylinder perfectly. With a little of both sides it does fit perfectly top and bottom.

>>>>> edited 10-22-20 at 9:50p.m. PST - after further testing the Enya .049 Muffler on other Cox .049 cylinders i have concluded that:

1. This muffler will NOT work with any front rotary engine like a TD or Medallion.
2. This muffler will not properly seal with a thick walled cylinder or an older thin walled cylinder without further modification to the cylinder sealing area on the muffler.
3. The #1 cylinder i was using was a "ground" cylinder for use with a throttle sleeve. So the cylinder diameter on the portion below the fins was a few thousandths of an inch smaller than the standard #1 cylinder.
   As soon as i am able to take photos and post them i will post a modification to the Enya .049 muffler to make it fit the ground cylinders.
   After my quick modification i was able to seal the muffler tightly around #1 and #3 ground Cylinders.
   I hope to run the engine tomorrow, (a babe bee).
>>>>>edit complete

Happydad I Love This Forum!


Last edited by happydad on Fri Oct 23, 2020 12:08 am; edited 1 time in total (Reason for editing : To correct the post)
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