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Cox Thermal Hopper 2-speed carb

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Cox Thermal Hopper 2-speed carb

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Old 10-05-2010, 11:19 PM
  #1  
jsesere
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Default Cox Thermal Hopper 2-speed carb

I have a couple of Cox parts I am not familiar with. The package say Thermal Hopper 2-speed carburetor. They are silver and look like this. Can anyone tell me anything about these?
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Old 10-06-2010, 08:37 AM
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fritzke
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Default RE: Cox Thermal Hopper 2-speed carb

Attach 2 fuel lines, adjust one needle for WOT, the other to run rich. Then use your
friendly compound escapement to pinch off one line or the other for speed control.
Dave
Old 10-06-2010, 11:46 AM
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gcb
 
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Default RE: Cox Thermal Hopper 2-speed carb


ORIGINAL: jsesere
I have a couple of Cox parts I am not familiar with. The package say Thermal Hopper 2-speed carburetor. They are silver and look like this. Can anyone tell me anything about these?
They were used for speed control before carbs were invented. They provided hi-lo only.

There were various ways of hooking them up. Another way was to use one needle as the high speed which was used all the time and the other provided extra fuel to richen it. The second needle was a flow, no-flow setup.

Since they were for the Thermal Hopper, they MAY also work with the Space Hopper. Not sure.

George
Old 10-06-2010, 11:56 AM
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BMatthews
 
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Default RE: Cox Thermal Hopper 2-speed carb

That sort of stuff dates back to the 50's and early 60's. You've got yerself a gen-you-wine anti-cue there
Old 10-06-2010, 12:22 PM
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Jim Thomerson
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Default RE: Cox Thermal Hopper 2-speed carb

I think they will even fit on a TD. The TD needle assemply will fit on a Space Hopper.

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