Engine identification

Probably also missing is the venturi gasket. Suggest installing a rebuilt kit for the appropriate engine. Probably less than $5 from Bernie @ Cox International. (See above)

SD

Thanks to all.

As Kim said, the fuel line is very stiff, i feel it's impossible to remove without cutting it.

I am missing also the propeller screw, wich is impossible to find here in Spain, as it as an american twist.

Would you say the rest of the parts are clean enough for running?

Any Cox engine that has sat for a number of years can usually benefit from a thourough disassembly and cleaning followed by replacement of parts that commonly deteriorated with age.

It really depend on what you want to achieve, an engine for display or to use. It the later don't be afaid to spend a little money making it serviceable. Parts ARE available and affordable though our vendors. They ship internationally.

SD

Here are some tips for cleaning.
For removing dried up Castro oil and fuel and cleaning the inside of the cylinder and other internal parts any 15% nitro fuel or better and a good still toothbrush or a Q-Tip works. I buy medical or dental grade because they are stiffer and don't fall apart that easily.
If you take a bright flashlight you can shine it down the needle valve opening and look through where venturi to check for clogging. A sewing needle works great for clearing it. Glow heads tops can be cleaned by chucking one up in a Dremel and using 320B waterproof sandpaper ot something similar.
For polishing the silver colored parts Mother's Mag and Aluminum Cleaner is the hot ticket. For back plates I use Wight's Copper Cream and a Q-Tip.

I've done the cleaning with Alcohol and a bit of water and cleaned it with a toothbrush, however, I have not cleaned the crankshaft, as i've read I need the prop screw to take it out. Is it adviceable to clean it?



im ordering the following:

Cox .049 Propeller 5 x 3



Cox .049 Propeller Screw - Short - Classic (4)


Cox .049 Babe Bee Tune Up Kit


I should be done with that I guess

by the way, in that tune up kit, that reed valve? is not for my model, isn't it?

Everything pictured is for a reed valve. If you need to remove and install the crank there are tools at Cox International or you can make your own.

Hi Roko,

These prop screws are indeed a problem to get at this side of the ocean. No way you'll find a 5-40 UNC screw. I discovered 3 2nd hand Coxes in an Easter egg last week: 2 049 slit cylinder Babe Bees and 1 051 Tee Dee. All had props on them and on 2 engines these were held on by metric screws. M3 it was, I think. I managed to get these intruders out and ran the threaded holes through with an original screw. Luckily, I didn't find any damage. I'm looking for a longer Tee Dee screw in order to fit the ally nose cone. Hope you will post some pics of the engine and of the future plane project.

Are screws with this thread available in the U.K.?

Lieven

roko:

The size prop needed depends on the plane flown. it"s not a "one size fits all" proposition.

5X3 may be too small.

What about a fuel pick-up tube and the little spring/filter that goes inside it?

SD

You need a screw to install the crank but not to remove it. You can put it on a drill press and chuck an appropriate sized dowel and press it out. A flat tipped roll pin punch can be used the same way with caution.

I would avoid doing it with a hammer, though some are braver than I.

When you get the crank out, look for the oil groove inside the crankcase tube and clean it out.

OVERLORD wrote:Hi Roko,

These prop screws are indeed a problem to get at this side of the ocean. No way you'll find a 5-40 UNC screw. I discovered 3 2nd hand Coxes in an Easter egg last week: 2 049 slit cylinder Babe Bees and 1 051 Tee Dee. All had props on them and on 2 engines these were held on by metric screws. M3 it was, I think. I managed to get these intruders out and ran the threaded holes through with an original screw. Luckily, I didn't find any damage. I'm looking for a longer Tee Dee screw in order to fit the ally nose cone. Hope you will post some pics of the engine and of the future plane project.

Are screws with this thread available in the U.K.?

Lieven

I could imagine what a challenge it would be to find some 5-40 screws over there when I had to check 3 different hardware stores around here before finding any. The hardware store that I found them at is one of those that seems to have everything. I guess it couldn't hurt to check out some hardware stores around you, not sure what it is like in other countries (other than being mostly metric) but every hardware store I have been in always has that little bin of special fittings and screws. Maybe you could get them to order you a little box of 100 5-40 x 1" inch round head screws (shouldn't cost too much). You can always cut them down to use them without a spinner.

I too have a hard time finding the small screws, nuts and washers around here. I've found boxes of 100s on Amazon of all places.
Also a local Fastenal store would be worth a look.

Crank:

Have you tried Ace Hardware? We have one close to us that is well-stocked with hard-to-find bolts, washers, nuts etc.

SD

If you have a Sears Hardware in your area they should carry a variety of sizes as well. I do not believe they are international.

Matt

Matt:

Crank lives in Homestead, Florida not overseas.

SD

Thank you very much Kim, however i feel its unfair for you too send me things i can find on the internet for less than 10$

I already own a radio, wich model of those at Blackhawk would be suitable for a begginer?

Roko:

Most of us who have dabbled with these engines for any length of time have amassed a considerable collection of new parts to fit them. Ordering from Bernie or Matt cost no more than $3.95 no matter how much you order.

For example, my most recent order from Bernie was $25 plus $3.95 for shipping.

Live it up and get what you need! That's what our vendors need to stay in business.

SD

SuperDave wrote:Matt:

Crank lives in Homestead, Florida not overseas.

SD

Yes, I only added the international note because some other mentioned other overseas were asking about local places in their areas, and I am not sure if they exist for these types of threads.

Matt