Correct Procedure for breaking in a Cox 020 Pee Wee

Apollo Kenney wrote:I have no idea, cant get this thing started, can i have a walk-through? Like how far to turn the needle valve, how to prime it

Hi! I followed all the steps that the manual says and I cant´get started too. So... after 1 hour of trying I have the solution.

1) Fill the tank at top
2) open the needle 3 or 3 1/2
3) put gasoline in the cilinder window
4) rotate propeller counterclockwise
5) connect the power suply (1.5 AA battery)
6) if you have the easy ignition spring, turn one spin and let it go. if you don´t have the easy ignition spring, simply spin it clockwise.

note that rarely start the first time. Here´s my first Pee Wee 020 (it takes my a lot of time to started and I had to replace a lot of parts. (the engine was new but a lot of parts were ruined)

Sorry for my english... I´m from Argentina. I hope I can help you. https://www.youtube.com/watch?v=bQhSiWReRKw

Juan.

casalejuan wrote:
3) put gasoline in the cylinder window

By "gasoline," you mean glow fuel... right?

thanks guys, got it working

The first part of the manual should tell you to attach the engine firmly and not run it your hand, that's just asking for trouble...

The engine doesn't sound right, the prop might be too large (5x3?) or there is some other problem. The engine should easily do about 15000rpm on the stock prop.

Keep running that engine in your hand like that and your friends will soon call you "Lefty Kenney".

Apollo Kenney wrote: thanks guys, got it working

1) NEVER run a cox in your hand!!!! Attach it in a piece of wood.
2) I'm not a professional in cox engines but I hear in your video that revolutions are a bit low. You must open the needle a little more. In all my pee wee I have to open about 3 or 3 1/2 laps (not 2 1/2 like in the instructions)

RknRusty wrote:

casalejuan wrote:
3) put gasoline in the cylinder window

By "gasoline," you mean glow fuel... right?

Yes, I use Castor oil and nitromethnol. I said Gasoline because my english is so bad!

Surfer_kris wrote:The first part of the manual should tell you to attach the engine firmly and not run it your hand, that's just asking for trouble...

The engine doesn't sound right, the prop might be too large (5x3?) or there is some other problem. The engine should easily do about 15000rpm on the stock prop.

its a Thimbledrome 5D 4P prop. came with the engine. oh and the rpms are all over the map.drops to below 1,000 then over 10k

Apollo Kenney wrote:its a Thimbledrome 5D 4P prop. came with the engine. oh and the rpms are all over the map.drops to below 1,000 then over 10k

That's your problem then, the prop is simply way too big. Get a stock prop, a cox 4.5x2, before looking elsewhere for any issues.