My TeeDee .051

Hi,
I'd like to show you the movie I made today from staring my first Cox engine - Tee Dee .051
I've renovated the engine a I've little cleaned. I made a needle spring from the office clip. In the previous film it was from a can but it didn't work out and the needle was unscrewing. As a result, I couldn't adjust the engine properly and it only reached 17,000 RPM. Plus, I fired it with 5% nitro fuel.

Now on better test stand, with 20% nitro fuel and a new "spring", it reaches out 21 000 RPM (0.117 HP 86W)

You can view all photos from renovation in this album https://flic.kr/s/aHsmvTLKXz  

The video from today:

As an alternate to the spring tab, you may also pull a silicon tube over the golden carb nipple and the stem of needle valve, that will not only withhold it from resetting itself during engine run, but also seal against possible air in-leakage that often plagues TD-s after some extended time of operation.