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

Logged in members see NO ADVERTISEMENTS!


TD Carb Saver? Cox_ba12





Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» *Cox Engine of The Month* Submit your pictures! -December 2023-
by MauricioB Yesterday at 9:02 pm

» Cox .020 SkyCopter
by duaneh Yesterday at 8:25 pm

» K&B greenhead .35
by rsv1cox Yesterday at 6:24 pm

» It's been a nautical day
by rdw777 Yesterday at 5:23 pm

» Waited 3 months for these Enya Engines (two more to come yet) -- special build from Ken
by robot797 Yesterday at 2:49 pm

» Carl Goldberg mounts for red postage stamp backplate reedies
by Dave Rigotti Yesterday at 2:23 pm

» a cheap sport muffler
by rsv1cox Yesterday at 12:42 pm

» Hoppers and Bugs
by cstatman Yesterday at 12:38 pm

» Need help identifying several small things
by OVERLORD Yesterday at 6:21 am

» 0.061 big mig, leaning symptom
by Ken Cook Yesterday at 4:31 am

» Spitzy 8 ? O&r
by Ken Cook Yesterday at 4:23 am

» Looking to for a early 1970's Cox Spitfire
by kevin king Yesterday at 3:10 am

Cox Engine of The Month
November-2023
1/2A Nut's

"TD .020 RC"

More info on this engine!




PAST WINNERS
CEF Traveling Engine

Win This Engine!
Gallery


TD Carb Saver? Empty
Live on Patrol


TD Carb Saver?

Go down

TD Carb Saver? Empty TD Carb Saver?

Post  Levent Suberk Thu Feb 20, 2020 12:26 pm

I have an idea for TD engines, but didn't try yet: I'll place an o-ring on venturi threads, so the venturi rises in plastic carb body, when fully screwed and tightened. Because venturi rises, then plastic carburetor body do not crack within time. I meant venturi doesn't force carb body too much from top. Is this right?
avatar
Levent Suberk
Diamond Member
Diamond Member

Posts : 2152
Join date : 2017-12-24
Location : Türkiye

Back to top Go down

TD Carb Saver? Empty Re: TD Carb Saver?

Post  Marleysky Thu Feb 20, 2020 1:57 pm

Levent Suberk wrote:I have an idea for TD engines, but didn't try yet: I'll place an o-ring on venturi threads, so the venturi rises in plastic carb body, when fully screwed and tightened. Because venturi rises, then plastic carburetor body do not crack within time. I meant venturi doesn't force carb body too much from top. Is this right?

Sounds to me like you are installing a O Ring on the bottom on the venturi to provide a soft flexible seal to the plastic threads of the carb body. That may work for a while, but I would be concerned about the venturi vibrating loose during flight, as the O ring might take up the space of one or two lands of the threaded inlet. Maybe if the carb body inlet was bored with a smooth recess, and the venturi had a groove turned on it to hold the O ring in place it would allow the O ring to compress and seal the opening, very similar to what is done inside a Babe Bee tank venturi to backplate seal. If you have the precision machinery to bore precisely the carb body and venturi like those aluminum tanks that Bernie had made, it might just work. .....Or, maybe our member Greg and make some all aluminum carb bodies, then you would not have to worry about the plastic cracking!
Marleysky
Marleysky
Top Poster
Top Poster

2021 Supporter

2022 Supporter

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

Back to top Go down

TD Carb Saver? Empty Re: TD Carb Saver?

Post  aspeed Thu Feb 20, 2020 4:23 pm

Even an aluminum housing without the 1/4-32 thread and a bit more meat on it so a different brand carb would fit, like OS or whatever. Even the Medallion spraybar or a pinch bolt would be nice. Carbs and mufflers are kind of the downfall of the Cox TD stuff which is otherwise a pretty good motor.
aspeed
aspeed
Platinum Member
Platinum Member

Posts : 778
Join date : 2013-01-18
Location : Leamington Ont. Can.

Back to top Go down

TD Carb Saver? Empty Re: TD Carb Saver?

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


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