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RUNNING the Cox 140
Page 1 of 1
RUNNING the Cox 140
Cox / Rhino 140 enthusiasts... I finally got around the RUNNING one of these engines (I have three)
The engine started surprisingly easy by hand, although would start backwards half the time. Propping it clockwise would get it running in the proper direction.
After some fiddling with the new Tillotson diaphragm, I had the Low and High speed needles adjusted for easy starting, good idle, good transition, and a rich top end.
Although an 18x8 prop seems HUGE for a 23cc engine, the engine handles it with no problem.
I know the 'recommended' prop is a 20x5, but I can't seem to find one of those to save my life
My goal was merely to see if the Tillotson replacement diaphragm (described earlier) would work - IT DOES - and to see just how one of the engines actually runs. Now that I have been there, done that, I am going to sell this engine since I don't envision building a giant RC Ford Trimotor at anytime in my future
IF anyone is interested in owning a working piece of Cox and giant scale RC history, let me know. Here a video of the engine:

The engine started surprisingly easy by hand, although would start backwards half the time. Propping it clockwise would get it running in the proper direction.
After some fiddling with the new Tillotson diaphragm, I had the Low and High speed needles adjusted for easy starting, good idle, good transition, and a rich top end.
Although an 18x8 prop seems HUGE for a 23cc engine, the engine handles it with no problem.
I know the 'recommended' prop is a 20x5, but I can't seem to find one of those to save my life

My goal was merely to see if the Tillotson replacement diaphragm (described earlier) would work - IT DOES - and to see just how one of the engines actually runs. Now that I have been there, done that, I am going to sell this engine since I don't envision building a giant RC Ford Trimotor at anytime in my future

IF anyone is interested in owning a working piece of Cox and giant scale RC history, let me know. Here a video of the engine:
BlackWidow- Moderate Poster
- Posts : 17
Join date : 2017-12-28
Re: RUNNING the Cox 140
Pretty neat. I have heard about them but never saw one running. Thanks for sharing.
rsv1cox- Top Poster
Posts : 10001
Join date : 2014-08-18
Location : West Virginia
Re: RUNNING the Cox 140
That is really cool.
Same here, I've heard of them, but never saw one run. Very cool!

Re: RUNNING the Cox 140
I have a Rhino 140 new in the box that I got about three years ago, I think? I have all the paperwork with it. I haven't started it yet. Maybe after the move it will be on the list. I think I might start back into RC in addition to CL once I get settled. My biggest worry is how much glow fuel the thing is going to drink. My plan is to draw up a Giant Scale Q-Tee. After all, what better plane for a Cox engine than a Q-Tee?
Also, I was toying with moving the prop hub from the Rhino over to a Beaver so I could use gas for a plane instead of expensive glow fuel.
The Go Big Mark
Also, I was toying with moving the prop hub from the Rhino over to a Beaver so I could use gas for a plane instead of expensive glow fuel.
The Go Big Mark
batjac- Diamond Member
Posts : 2313
Join date : 2013-05-22
Age : 60
Location : Broken Arrow, OK, USA
Re: RUNNING the Cox 140
That sounded Great !! Thanks !!

getback- Top Poster
Posts : 9833
Join date : 2013-01-18
Age : 66
Location : julian , NC

» 010 running
» TD not really running....
» Got one running!
» Running one of my TD .09's
» .020 pee wee running
» TD not really running....
» Got one running!
» Running one of my TD .09's
» .020 pee wee running
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