Cox Engines Forum
You are not logged in! Please login or register.

Logged in members see NO ADVERTISEMENTS!


FOUND! Cox 051 piston Cox_ba12




FOUND! Cox 051 piston Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Micro Draco Gets to Fly on a Beautiful Morning.
by roddie Today at 9:24 am

» Reliving my childhood with a very rare and totally undesirable yellow head Babe Bee
by Greenman38633 Today at 9:20 am

» Choke Tube "stuff"...
by Greenman38633 Today at 9:18 am

» Revivng Some Childhood Classics
by crankbndr Today at 8:59 am

» Jim Walker Firebaby
by rsv1cox Today at 8:39 am

» Project Cox .049 r/c & Citabrian Champion
by rdw777 Today at 8:22 am

» K&B greenhead Torpedo 19/23 prop driver
by ffkiwi Today at 6:16 am

» Mounting screws for horseshoe backplate
by KariFS Today at 12:12 am

» So to the rescue of an EZ BEE .049 r/c
by MauricioB Yesterday at 10:20 pm

» Making a water-cooling coil for a Cox .049 engine
by 1/2A Nut Yesterday at 9:27 pm

» Cox powered jet-pump for model Sprint Boat
by roddie Yesterday at 8:45 pm

» K&B Torpedo .19 Green Head CL Needle Valve
by ffkiwi Yesterday at 7:00 pm

Cox Engine of The Month
April-2024
OVERLORD's

"Kress ducted fan with new Cox Conquest 15 RC"



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


FOUND! Cox 051 piston Empty
Live on Patrol


FOUND! Cox 051 piston

Page 1 of 2 1, 2  Next

Go down

FOUND! Cox 051 piston Empty FOUND! Cox 051 piston

Post  kevin king Tue Feb 13, 2024 10:53 am

Looking to buy a piston for a cox TD 051 in very good to new condition.
Thanks.

Kevin


Last edited by kevin king on Thu Feb 15, 2024 1:50 pm; edited 1 time in total
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  Ken Cook Tue Feb 13, 2024 6:32 pm

Kevin, why the reasoning for just the piston? Do you already have a cylinder? I see a piston on EBAY for $20 + shipping. It has two rings around the piston skirt which tells me it's not for a TD as mentioned. I believe this is for the Killer Bee. It may work, I'm not certain.
Ken Cook
Ken Cook
Top Poster
Top Poster

Posts : 5447
Join date : 2012-03-27
Location : pennsylvania

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Tue Feb 13, 2024 7:31 pm

Ken Cook wrote:           Kevin, why the reasoning for just the piston? Do you already have a cylinder? I see a piston on EBAY for $20 + shipping. It has two rings around the piston skirt which tells me it's not for a TD as mentioned. I believe this is for the Killer Bee. It may work, I'm not certain.

Hi Ken, the piston rod disconnected in flight, And i am hoping the cylinder is ok but haven't checked.
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Tue Feb 13, 2024 7:32 pm

Wait, maybe its not called a td 051, maybe an 051 medallian?
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  Admin Wed Feb 14, 2024 12:21 am

Most likely it's a Tee Dee .051.

Can you upload a picture?

_________________
-Jacob


Admin
Admin
Administrator

Posts : 6409
Join date : 2010-07-27
Location : Roseville, Minnesota

http://sites.google.com/site/coxenginecollection/

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  balogh Wed Feb 14, 2024 12:43 am

Ken Cook wrote:           Kevin, why the reasoning for just the piston? Do you already have a cylinder? I see a piston on EBAY for $20 + shipping. It has two rings around the piston skirt which tells me it's not for a TD as mentioned. I believe this is for the Killer Bee. It may work, I'm not certain.

I have a piston with 2 grooves at the skirt bottom, and it does not pass the exhaust ports even in my most used 051, so it's diameter must be a tad larger than the 051 piston. I do not understand why COX wanted to differentiate the 051 KB engine from the rest of 051 COX engines like the TeeDee engines, by producing a non- interchangeable  piston? Does not make too much sense to me in a general production concept, that was otherwise based on interchangeable parts?
balogh
balogh
Top Poster
Top Poster

2022 Supporter

2023 Supporter

Posts : 4745
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary

Back to top Go down

FOUND! Cox 051 piston Empty Td 051

Post  kevin king Wed Feb 14, 2024 12:46 am

Admin wrote:Most likely it's a Tee Dee .051.

Can you upload a picture?

Sure can. its a jewel of an engine. Its the engine that was in Tsunami.
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty TD 051

Post  kevin king Wed Feb 14, 2024 12:55 am

TD 051 Tsunami
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Wed Feb 14, 2024 12:56 am

Maybe not. Im having issues uploading
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  GallopingGhostler Wed Feb 14, 2024 1:15 am

kevin king wrote:Maybe not. Im having issues uploading
Have you read:
https://www.coxengineforum.com/t15567-how-to-post-an-image-in-a-topic
GallopingGhostler
GallopingGhostler
Top Poster
Top Poster

2023 Supporter

Posts : 5285
Join date : 2013-07-13
Age : 70
Location : Clovis NM or NFL KC Chiefs

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Wed Feb 14, 2024 1:49 am

I am on my cell phone, because that's where i have all my photos. It worked before, they do upload, i see them in the preview, I hit send, but they dont appear. I will figure it out though.
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Wed Feb 14, 2024 2:01 am

Try thisFOUND! Cox 051 piston Pxl_2036
FOUND! Cox 051 piston Screen27
FOUND! Cox 051 piston Screen26[url=https://servimg.com/view/20198864/80]


Last edited by kevin king on Wed Feb 14, 2024 9:21 am; edited 1 time in total
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Wed Feb 14, 2024 2:04 am

edited
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Wed Feb 14, 2024 9:28 am

Ken Cook wrote:           Kevin, why the reasoning for just the piston? Do you already have a cylinder? I see a piston on EBAY for $20 + shipping. It has two rings around the piston skirt which tells me it's not for a TD as mentioned. I believe this is for the Killer Bee. It may work, I'm not certain.

Ken, do you have a link for the ebay listing?
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  944_Jim Wed Feb 14, 2024 11:13 am

I still love this model!

_________________
Never enough time to build them all...always enough time to smash them all!
944_Jim
944_Jim
Diamond Member
Diamond Member

2022 Supporter

2023 Supporter

2024 Supporter

Posts : 1952
Join date : 2017-02-08
Age : 59
Location : NE MS

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  Admin Wed Feb 14, 2024 1:34 pm

The red carb body typically says it's a Tee Dee .051, you can tell for sure if your original piston has a groove in the skirt, and the cylinder has a #5 stamped on it.

As mentioned, a Killer Bee .051 piston (two grooves on the skirt) won't fit in the Tee Dee .051 cylinder, and from my understanding a .051 Medallion piston won't fit either (those come up for sale every so often, but they were originally made for the special NFFS .051).





_________________
-Jacob


Admin
Admin
Administrator

Posts : 6409
Join date : 2010-07-27
Location : Roseville, Minnesota

http://sites.google.com/site/coxenginecollection/

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  davidll1984 Wed Feb 14, 2024 3:44 pm

If I see well and my eyes don't play tricks on me, I have the impression of seeing numbers on the engine casing which could indicate an nffs .051. Those Nffs only a limited quantity and they have a serial number!!! Check if you can decipher the serial number if you have numbers on the right side ???
davidll1984
davidll1984
Diamond Member
Diamond Member

Posts : 2287
Join date : 2020-02-12
Age : 39
Location : shawinigan

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Wed Feb 14, 2024 7:27 pm

944_Jim wrote:I still love this model!
Thanks Jim
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Wed Feb 14, 2024 7:31 pm

davidll1984 wrote:If I see well and my eyes don't play tricks on me, I have the impression of seeing numbers on the engine casing which could indicate an nffs .051. Those Nffs only a limited quantity and they have a serial number!!! Check if you can decipher the serial number if you have numbers on the right side ???


Hi David, i will check the casing for numbers and get back to you.
PS. What is an nffs?
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Wed Feb 14, 2024 7:32 pm

Admin wrote:The red carb body typically says it's a Tee Dee .051, you can tell for sure if your original piston has a groove in the skirt, and the cylinder has a #5 stamped on it.

As mentioned, a Killer Bee .051 piston (two grooves on the skirt) won't fit in the Tee Dee .051 cylinder, and from my understanding a .051 Medallion piston won't fit either (those come up for sale every so often, but they were originally made for the special NFFS .051).

Thank you Admin.




kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  GallopingGhostler Wed Feb 14, 2024 9:10 pm

kevin king wrote:What is an nffs?
National Free Flight Society, I believe. @sosam117 is a regular poster here, he is especially fond of Enya engines. He flies free flight competition and is intimate with free flight. Maybe he can chime in what he knows about the limited Medallion .051's that were issued / sold by the NFFS.

Good looking engine and plane, by the way, very fine photo composition cropping and balance.  Thumbs Up

I sometimes Email photos from my cellphone to my Email account, then download and process on my PC desktop, or connect the USB/charge cable to the PC, so I download directly. (Cell looks like another thumb drive to the PC.)
GallopingGhostler
GallopingGhostler
Top Poster
Top Poster

2023 Supporter

Posts : 5285
Join date : 2013-07-13
Age : 70
Location : Clovis NM or NFL KC Chiefs

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Thu Feb 15, 2024 1:06 am

David, the case is stamped with the number 2.
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Thu Feb 15, 2024 1:09 am

GallopingGhostler, If I recall correctly, the Cox Medallion had a molded plastic venturi.
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  GallopingGhostler Thu Feb 15, 2024 1:20 am

kevin king wrote:GallopingGhostler, If  I recall correctly, the Cox Medallion had a molded plastic venturi.
The Medallion was considered the "poor man's TD". Cylinder had only one intake bypass port. I don't know if Cox's .051 Medallion had only one bypass port or two. Yes, it has a molded plastic venturi that is integral with the carb body.

About 8 years ago, Ron @Cribbs74 came temporarily to Clovis NM on an assignment for his employer, brought his C/L Baby Clown with 26 inch wingspan, 200 square inches wing area, powered by a hopped up Medallion .049 on a fuel pressure bladder setup. Not sure, but think he may have had a TD piston cylinder set in ot. It flew very well, just as good as the larger .35 sized stunt planes. It did its magic in the air.

I am green on these, as the only TD I had for a long while was a .020 on a House of Balsa Nomad single channel R/C glider.

Over the past couple years, I acquired a like new Medallion .09 R/C with exhaust throttle muffler, a used Medallion .049 and a .051 Tee Dee on a glider power pod. That Tee Dee was missing the venturi, but fortunately had the current non-obtanium needle valve assembly with needle.

Bought parts, just need to do a clean up and repair, should be a good runner.

I guess push comes to shove, you could simply replace the .051 cylinder with a Tee Dee .049 cylinder and piston set. Bernie at Cox International has them in stock. Although it would no longer be a .051 except in looks, it would be a good runner. The difference between a .051 and .049 in power is negligible.

Reason why Cox produced a .051 in addition to the .049, is the .051 is considered "A" size and a plane with it could qualify under free flight rules in that class. One simply swampped out the .049 for half-A F/F contest for the .051. Now it was an "A" size F/F without having to make hardly any trimming adjustments.
GallopingGhostler
GallopingGhostler
Top Poster
Top Poster

2023 Supporter

Posts : 5285
Join date : 2013-07-13
Age : 70
Location : Clovis NM or NFL KC Chiefs

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  kevin king Thu Feb 15, 2024 9:54 am

Because the engine was a gift from a member of this forum, I would like to keep it a true td O51, even though a Td 049 piston & and cylinder liner looks and offers similar performance. I do have some good leads though. Paul Gibeault offered up an entire TD 051 piston, cylinder and head off his engine. Very nice offer but i would prefer he not take one of his own engines apart for me.
kevin king
kevin king
Silver Member
Silver Member

Posts : 95
Join date : 2020-04-16

Back to top Go down

FOUND! Cox 051 piston Empty Re: FOUND! Cox 051 piston

Post  Sponsored content


Sponsored content


Back to top Go down

Page 1 of 2 1, 2  Next

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum