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

Logged in members see NO ADVERTISEMENTS!


New or Nearly New Cox 020 Cylinder & Piston Cox_ba12




New or Nearly New Cox 020 Cylinder & Piston Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» Cox powered boat litle shrimp hidroplane
by davidll1984 Today at 2:52 pm

» my attempt at making an exhaust throttle for Cox .049
by roddie Today at 1:39 pm

» Introducing the new - "QZ" RR-1
by roddie Today at 1:08 pm

» STUKA bomb dimentions needed
by latole Today at 9:36 am

» Indexing COX cylinders
by davidll1984 Today at 7:56 am

» Another of C.T. engines cleaned ---- Cox Tee Dee .09 --- Just today (3/26/2024) more Cox parts
by Yabby Today at 7:47 am

» Introducing our Cox .049 TD Engines
by Yabby Today at 6:33 am

» 1/2a Skyray plans?
by 944_Jim Yesterday at 10:14 pm

» Postage stamp backplates
by JPvelo Yesterday at 8:52 pm

» Cosmic Winds, - Big Guy, Little Guys, Silver Guy and Wounded Guy.
by rsv1cox Yesterday at 5:18 pm

» My friend Ramón, his Cox .09 & Cox .010
by MauricioB Yesterday at 12:31 pm

» Parts Cox TD-4
by rsv1cox Yesterday at 8:40 am

Cox Engine of The Month
March-2024
balogh's

"COX Budapest" .049 engine



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


New or Nearly New Cox 020 Cylinder & Piston Empty
Live on Patrol


New or Nearly New Cox 020 Cylinder & Piston

Go down

Wanted New or Nearly New Cox 020 Cylinder & Piston

Post  halfpilot Tue May 19, 2015 4:50 am

I am looking for a new or newish Cox 020 cylinder and piston to replace the worn pair that presently power my little .020 Tee Dee. I believe all 020 engines use the same piston and cylinder meaning I could also use a pair from a Pee Wee. Please let me know what you have and what you'd like for it. Will need to post to the UK.

Thanks,
Simon


Last edited by ThermalSniffer on Tue May 19, 2015 4:52 am; edited 1 time in total (Reason for editing : Put a name to the message!)
halfpilot
halfpilot
Formerly known as:
ThermalSniffer

Formerly known as:ThermalSniffer

Posts : 96
Join date : 2011-09-06
Location : England

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  1/2A Nut Tue May 19, 2015 1:52 pm

I source good deals on ebay for Pee Wee engines just for the piston / cylinders - The TD uses the same set. Small Cox Logo
1/2A Nut
1/2A Nut
Top Poster
Top Poster

Posts : 3402
Join date : 2013-10-20
Age : 60
Location : Brad in Texas

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  halfpilot Wed May 20, 2015 9:31 am

Yes, that is what I decided to do in the meanwhile. I took a Pee Wee cylinder and piston from one of my better Pee Wees and got a piston rod reset tool to fix the slack in the old Tee Dee piston and rod.

I had hoped that the piston rod reset might also broaden the cylinder slightly to improve compression. No luck there though, I over cooked it and made the rod ever so slightly stiff in the socket in certain orientations. I am hoping this will loosen up with running but compression on that piston and cylinder set is still lacking. When I push the cylinder to TDC I can see the air bubbling out of the exhaust ports and there isn't much of a pop from the cylinder as I flip the prop over.

I decided to keep the newer set on my Tee Dee and the set with low compression on the Pee Wee. It's meant to be a lower performance engine anyway. I use the CNC aluminium carb on my Tee Dee which means no starter spring. That coupled with the low compression made that engine difficult to start. The Pee Wee with it's starter spring will probably fire up OK even with the low compression.
halfpilot
halfpilot
Formerly known as:
ThermalSniffer

Formerly known as:ThermalSniffer

Posts : 96
Join date : 2011-09-06
Location : England

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  1/2A Nut Wed May 20, 2015 2:29 pm

I use the aluminum carb bodies too with a thrust washer I am able to start them right up with a 1/2A Sullivan Hornet elect. starter - dont need to prime much a drop or two into the carb after that the fuel will pull right into the engine.
Can recommend 4 x 2.5 cox props or APC 4.2 x 2 for faster flying and of course the 4.5D x 2 for thrust.  Small Cox Logo


Here is a vid of one of my TD .020's with the Cox 4 x 2.5 - Lil Speedy scratch design.
Props are no longer rare thanks to Bernie he ran a batch to sell at Cox International.

1/2A Nut
1/2A Nut
Top Poster
Top Poster

Posts : 3402
Join date : 2013-10-20
Age : 60
Location : Brad in Texas

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  Cribbs74 Wed May 20, 2015 10:05 pm

That thing is stupid fast, looks sharp too!
Cribbs74
Cribbs74
Moderator

2022 Supporter

2023 Supporter

2024 Supporter

Posts : 11892
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  1/2A Nut Thu May 21, 2015 9:05 pm

Thank you the 4 x 2.5 really is a perfect fit for the Lil Speedy the APC 4.2 x 2 allows more unloading for more thrust and stead fast turns but just wont go as fast on the straights
1/2A Nut
1/2A Nut
Top Poster
Top Poster

Posts : 3402
Join date : 2013-10-20
Age : 60
Location : Brad in Texas

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  Cribbs74 Thu May 21, 2015 9:32 pm

I have to say, I am really intrigued with that model. I am a CL guy, but there is something about that little thing that really speaks to me.

Is there a kit or a plan available for it? I have some TD .020's that need some attention.

Ron
Cribbs74
Cribbs74
Moderator

2022 Supporter

2023 Supporter

2024 Supporter

Posts : 11892
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  dinsdale Fri May 22, 2015 2:04 am

Cribbs74 wrote: ... I have some TD .020's that need some attention.
Ron
Send a few to me - I'll give 'em all the attention they can handle Very Happy
dinsdale
dinsdale
Account Deactivated by Owner

Posts : 317
Join date : 2012-02-22

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  Marleysky Fri May 22, 2015 7:13 am

Cribbs74 wrote:I have to say, I am really intrigued with that model. I am a CL guy, but there is something about that little thing that really speaks to me.

Is there a kit or a plan available for it? I have some TD .020's that need some attention.

Ron

Ron, there is a real nice build thread over at RCU by a guy named pond skipper in the 1/2a forum. ( I think he is Clark Kent if  1/2A nuts Superman)
ForumRC Airplanes"1/2 A" & "1/8 A" airplanes Ply Rolled Fuselage Part Deux - 1/2A " Mini Skorch "
Link:
http://www.rcuniverse.com/forum/1-2-1-8-airplanes-70/11602404-ply-rolled-fuselage-part-deux-1-2a-mini-skorch.html

Yeah, you're right this plane does call you name, if I was going to scratch build something....this would be it!!
Marleysky
Marleysky
Top Poster
Top Poster

2022 Supporter

Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  1/2A Nut Fri May 22, 2015 8:30 am

Yes that's me I use Pond Skipper handle at RCU and Amp Abuser at RC Groups

The Skorch is Lil Speedy's big brother.

There is a thread for just the Lil Speedy will dig it up was originally design for a TD .010 then later upgraded to the .020 which immediately turned it into a blistering ball of micro nitro fun. I had made the firewall a tad big for the .010 so the
TD .020 could be used on the nose, the battery was moved a bit more rearward to keep the CG on the money.


This one is the one:

Thread: Cox TD .010 Ply Rolled Fuselage 3Ch Speeder

http://www.rcuniverse.com/forum/1-2-1-8-airplanes-70/11597545-cox-td-010-ply-rolled-fuselage-3ch-speeder.html


Here is the Skorch

1/2A Nut
1/2A Nut
Top Poster
Top Poster

Posts : 3402
Join date : 2013-10-20
Age : 60
Location : Brad in Texas

Back to top Go down

Wanted Re: New or Nearly New Cox 020 Cylinder & Piston

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

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